N222368110 Accessory High-Mounted Stop Light Inoperable – 2022 Chevrolet Silverado & GMC Sierra 1500

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This is a representative letter. Customer letters are personalized and list specific model, model year and VIN. IMPORTANT SAFETY RECALL August 2022 This notice applies to your vehicle, VIN: __________________________________ Dear General Motors Customer: This notice is sent to you in accordance with the National Traffic and Motor Vehicle Safety Act. General Motors has decided that certain 2022 model year Chevrolet Silverado and GMC Sierra vehicles fail to conform to Federal Motor Vehicle Safety Standard No. 108, “Lamps, reflective devices, and associated equipment.” As a result, GM is conducting a recall. We apologize for this inconvenience. However, we are concerned about your safety and continued satisfaction with our products. IMPORTANT • Your vehicle is involved in GM noncompliance recall N222368110. Why is your vehicle being recalled? These vehicles may have been equipped at delivery with a dealer-installed accessory sport bar that (a) contains a high-mounted stop lamp that will not operate when installed according to the provided instructions and (b) blocks the vehicle’s existing high-mounted stop lamp. If the high-mounted stop lamp is not operable or visible to other road users, there is increased risk of a crash. What will we do? Parts to repair your vehicle are not currently available, but when parts are available, your GM dealer will inspect the installation of the accessory bar and provide corrected vehicle wiring if necessary. This service will be performed for you at no charge. We are working as quickly as possible to correct this condition. When parts are available, we will send you another letter asking you to take your vehicle to your GM dealer to have your vehicle serviced. You can also check the status of this recall at: https://my.gm.com/recalls. If you have already paid for repairs for this condition, you may submit those charges using the reimbursement request form that will be provided with the next letter. Do you have questions? If you have questions or concerns that your dealer is unable to resolve, please contact the appropriate Customer Assistance Center at the number listed below. Division Number Text Telephones (TTY) Chevrolet 1-800-630-2438 1-800-833-2438 GMC 1-866-996-9463 1-800-462-8583 Puerto Rico – English 1-800-496-9992 Puerto Rico – Español 1-800-496-9993 Virgin Islands 1-800-496-9994 For the hearing or speech impaired, please contact our Customer Assistance Center using the Telecommunication Relay Service by dialing 711 then providing the appropriate Customer Assistance Center number for your vehicle. If after contacting your dealer and the Customer Assistance Center, you are still not satisfied we have done our best to remedy this condition without charge and within a reasonable time, you may wish to write the Administrator, National Highway Traffic Safety Administration, 1200 New Jersey Avenue, SE., Washington, DC 20590, or call the toll-free Vehicle Safety Hotline at 1.888.327.4236 (TTY 1.800.424.9153), or go to http://www.nhtsa.gov. The National Highway Traffic Safety Administration Campaign ID Number for this recall is 22V463. Federal regulation requires that any vehicle lessor receiving this recall notice must forward a copy of this notice to the lessee within ten days. Regina Carto Vice President Global Vehicle Safety and Systems GM Recall: N222368110

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F/CMVSS Noncompliance Recall N222368110 Accessory High-Mounted Stop Light Inoperable Copyright 2023 General Motors. All Rights Reserved. Page 1 of 8 Release Date: January 2023 Revision: 00 Attention: It is a violation of Federal law for a dealer to deliver a new motor vehicle or any new or used item of motor vehicle equipment (including a tire) covered by this notification under a sale or lease until the defect or noncompliance is remedied. Vehicles involved in this recall were placed on stop delivery June 30, 2022. Once the service procedure contained in this bulletin has been performed on the vehicle, the vehicle is released from stop delivery and the vehicle can be delivered to the customer. All involved vehicles that are in dealer inventory must be held and not delivered to customers, dealer traded, or used for demonstration purposes until the repair contained in this bulletin has been performed on the vehicle. Dealer Notification Instructions. Because this equipment recall involves equipment/parts also sold over-the-counter, dealers are REQUIRED to search their sales records for over-the-counter sales and provide the recall notice to the purchaser. For recalled equipment sold as a dealer-installed option at the time of vehicle purchase; these VINs will be available on the Investigate Vehicle History (IVH) screen in GM Global Warranty Management (GWM) system and GM will contact these customers. DEALERS are required to search your part-sales records for over-the-counter sales of the recalled equipment (part numbers 84571746 and 84571747) sold after January 1, 2022 and send the owner of record the recall notice attached to this bulletin by first-class mail. If the purchaser is a body shop, independent repair shop, or other third-party automotive repair or distribution business, dealers are to contact the entity, obtain the owner’s name and address, and send the owner a copy of the letter. For US dealers only: For dealers with involved vehicles that can be identified by VIN, a listing with the involved vehicles containing the complete VIN, customer name, and address information has been prepared and will be provided to US dealers through GM GlobalConnect Maxis Field Action Reports. Dealers will not have a report available if they have no involved vehicles currently assigned. The listing may contain customer names and addresses obtained from Motor Vehicle Registration Records. The use of such motor vehicle registration data for any purpose other than follow-up necessary to complete this recall is a violation of law in several states/provinces/countries. Only use this report to conduct the recall-related notifications specified in this bulletin and required by law. Make Model Model Year RPO Description From To Chevrolet Silverado 1500 New 2022 2022 GMC Sierra 1500 New Involved vehicles are marked “Open” on the Investigate Vehicle History screen in GM Global Warranty Management system. This site should always be checked to confirm vehicle involvement prior to beginning any required inspections and/or repairs. Condition General Motors has decided that certain 2022 model year Chevrolet Silverado and GMC Sierra vehicles may fail to conform to S6.2.1 of Federal/Canada Motor Vehicle Safety Standard (FM/CMVSS) No. 108, “Lamps, reflective devices, and associated equipment.” These vehicles may have been equipped at delivery with a dealer-installed accessory sport bar that (a) contains a high-mounted stop lamp that will not operate when installed according to the provided instructions and (b) blocks the vehicle’s existing high-mounted stop lamp. If the high-mounted stop lamp is not operable or visible to other road users, there is increased risk of a crash. Correction Dealers will inspect the installation of the accessory bar and provide corrected vehicle wiring if necessary. F/CMVSS Noncompliance Recall N222368110 Accessory High-Mounted Stop Light Inoperable Page 2 of 8 Parts Quantity Part Name Part No. 1 Wire Harness Retrofit Kit 85630670 1 Pickup Box Ornamentation Bar Package (Use with RPO J22, VIN position 5 = A or D) Chevrolet 85654295 1 Pickup Box Ornamentation Bar Package (Use with RPO J22, VIN position 5 = H or U) GMC 85654296 Parts required to complete this repair are to be obtained from General Motors Customer Care and Aftersales (GMCC&A). Please refer to your “involved vehicles listing” before ordering parts. Order parts on a CSO = Customer Special Order only, DRO’s may cause a delay. It is estimated that there are only 38 involved vehicles that will require parts being replaced. Due to the small number of vehicles anticipated that will need this repair and the limited initial parts availability, dealers are encouraged not to order these parts for use as shelf stock. Reminder: Parts may be removed from Retail Inventory Management (RIM). Dealers should review the affected parts to confirm RIM managed status. Parts may have quantity limiters in effect. Warranty Information For vehicles that ARE listed in IVH Labor Operation Description Labor Time Trans. Type Net Item 9106445 Revise Accessory Wiring Harness 0.8 ZFAT N/A 9106476 Install Pickup Box Ornamentation Bar Package 2.5 N/A 9106456 Customer Reimbursement Check Issued N/A * 9106446 Customer Reimbursement Approved ** – For USA and Canada dealers only N/A 9106447 Customer Reimbursement Denied – For USA dealers only N/A *** 9106448 Floor Plan Reimbursement – NEW INVENTORY ONLY N/A **** 9106449 Working Capital Assistance Program Reimbursement – USED INVENTORY ONLY N/A ***** For vehicles that ARE NOT listed in IVH (Over-The-Counter Sales) Labor Operation Description Labor Time Trans. Type Net Item 9106457+ Revise Accessory Wiring Harness (see +note below) 0.8 ZREG N/A 9106458+ Customer Reimbursement Check Issued (see +note below) N/A * 9106459+ Customer Reimbursement Approved (see +note below) – For USA and Canada dealers only N/A ** 9106460+ Customer Reimbursement Denied – For USA dealers only (see +note below) N/A *** Note: To avoid having to “H” route the customer reimbursement / floor plan / WCAP transaction for approval, it must be submitted prior to the repair transaction. *Submit the dollar amount reimbursed to the Customer in the section titled Customer Reimbursement (Dealer Reimburses for Customer Purchased Option). The amount identified in Net Item is the $995.00 USD ($1,431.19 CAD) dealer check issued to a customer. Record the check number in the Invoice Number field. Record the VIN on the check. Submit $20.00 USD ($25.00 CAD) administrative allowance in Net/Admin Allowance. **For USA & Canada: Submit the dollar amount reimbursed to the Customer in Net/Reimbursement. Submit $20.00 USD ($25.00 CAD) administrative allowance in Net/Admin Allowance. ***Submit $10.00 administrative allowance in Net/Admin Allowance. +Because the VIN is not loaded into IVH, the warranty transaction MUST be H-routed for wholesale authorization. Floor Plan Reimbursement – NEW INVENTORY ONLY ****USA & Canada Only – For vehicles eligible for floor plan reimbursement, the amount should be submitted in Net Item/Miscellaneous. This amount should represent the product of the vehicle’s average daily interest rate (see table F/CMVSS Noncompliance Recall N222368110 Accessory High-Mounted Stop Light Inoperable Page 3 of 8 below) multiplied by the actual number of days the vehicle was in dealer inventory and not available for sale. This reimbursement is limited to the number of days from the date of the stop delivery message (June 30, 2022) to the date the repair is completed, and the vehicle is ready for sale (not to exceed 194 days): Vehicle Floor Plan Reimbursement Amount USA Canada 2022 Chevrolet Silverado 1500 New $8.56 $11.37 2022 GMC Sierra 1500 New $9.71 $11.05 Working Capital Assistance Program (WCAP) Reimbursement – USED INVENTORY ONLY Note: USA & Canada Only – To avoid having to “H” route the WCAP transaction for approval, it must be submitted prior to the repair transaction. Important: The WCAP ZSET transaction labor code, 9800095, provided in the dealer message sent on July 14, 2022 (USA) or July 14, 2022 (Canada), must have been submitted prior to the submittal of the ZFAT transaction labor code or the claim will reject. *****USA & Canada Dealers Only – For vehicles eligible under the Working Capital Assistance Program, the amount should be submitted in Net Item/Miscellaneous. This amount has been calculated to a daily value for the days that the vehicle was in used dealer inventory and not available for sale. This reimbursement is limited to the number of days from the date of the stop sale/stop delivery order (June 30, 2022) to the date the inspection or repair closed the recall bulletin. (not to exceed 194 days). Vehicle Working Capital Assistance Reimbursement Amount USA Canada 2022 Chevrolet Silverado 1500 New $30.22 $28.81 2022 GMC Sierra 1500 New $35.24 $34.10 Service Procedure Verify the Pickup Box Ornamentation Bar Package is or is not installed on the vehicle. Service Procedure for When the VIN is flagged in IVH for this recall • If the VIN indicates RPO J22 and is installed, VIN position 5 = A, D, H or U, refer to the Wiring Installation Update Procedure below. • If the VIN indicates RPO J22 and NOT installed, VIN position 5 = A, D, H or U, and the customer wants it, then install the correct Pickup Box Ornamentation Bar Package listed in the part table. • If the VIN indicates RPO J22 and NOT installed, VIN position 5 = A, D, H or U, and the customer Does NOT want it, then follow the Customer Reimbursement instructions. Service Procedure for Over-the-Counter Sales • If the VIN indicates RPO J21, VIN position 5 = W, Y, 8 or 9, no further action is required. • If the VIN indicates RPO J22, VIN position 5 = A, D, H or U, and the Pickup Box Ornamentation Bar Package is installed on the vehicle, refer to the Wiring Installation Update Procedure below. • If the VIN indicates RPO J22, VIN position 5 = A, D, H or U, and the Pickup Box Ornamentation Bar Package is purchased but not installed, refer to the Customer Reimbursement (Dealer Reimburses for Customer Purchased Option) section below. o Customer must return the parts to the dealer before reimbursement. ▪ If the box is unopened, return to dealer parts inventory for use ONLY on RPO J21 vehicles ▪ If the box is opened, the parts need to be defaced and scrapped. Wiring Installation Update Procedure Important: Some vehicles may have had the pickup box ornamentation bar package wiring modified or revised at the time of installation to make the center high-mounted lamp function. Any wiring alterations must be removed, and the following steps performed. Note: Verify the Pickup Box Ornamentation Bar Package has been installed per Instruction ID: 84219050. Beginning at the Sports Bar Harness Installation/Front Harness Installation section, remove any existing wiring (if installed) and proceed with the instructions below. 1. Using the terminated lead supplied with the service kit, create a 508mm (20.5in.) lead. F/CMVSS Noncompliance Recall N222368110 Accessory High-Mounted Stop Light Inoperable Page 4 of 8 2. Cut the terminal off the purple wire of the front harness supplied with the Pickup Box Ornamentation Bar Package. 3. Splice the new 508mm (20.5in.) lead onto the purple wire using the supplied connector. Refer to Wire to Wire Repair in SI. 4. Remove the right front wheelhouse liner. Refer to Front Wheelhouse Liner Replacement in SI. 5. Locate the grommet on the wiring harness that passes through the front of the dash. The new accessory lead passes through into the passenger side compartment by going through the nub of the grommet that is on the body harness. 6143588 6. Puncture the passthrough using care to not create a larger than necessary hole. 6143589 7. Using a fish wire, push the purple wire through the grommet. The wire will come out of the front of dash insulator on the interior of the vehicle. 8. Locate the X370 Connector. • For vehicles with RPO GF2, GF5, GPZ (Chevrolet) and GFF (GMC) the X370 is located behind the passenger side kick panel. • For all other vehicles, the X370 is located on the top of the instrument panel next to the right speaker. Remove the instrument panel extension to access. Refer to Instrument Panel Extension Replacement in SI. F/CMVSS Noncompliance Recall N222368110 Accessory High-Mounted Stop Light Inoperable Page 5 of 8 9. Locate the CHMSL terminal in the X370 connector. • For vehicles with the X370 connector located at the kick panel, use terminal #17. • For vehicles with the x370 connector located on the instrument panel, use terminal #33. 10. Remove the terminal and tape back the lead. 11. Install the new CHMSL lead to the appropriate terminal in the X370 connector. 12. Secure the new lead to the existing harness every 50mm (2.0 in.) Use the wire ties provided in the Pickup Box Ornamentation Bar package. 13. Secure the accessory ground and under car portion of the harness per the Pickup Box Ornamentation Bar Package Instruction ID: 84219050. 14. Complete the installation per the Pickup Box Ornamentation Bar Package Instruction ID: 84219050. Important: There are two types of Customer Reimbursement. Please read the following two options to determine which may apply. Customer Reimbursement (Dealer Reimburses for Customer Purchased Option) Note: Reimbursement is for customers who paid for the Pickup Box Ornamentation Bar Package and the customer does NOT wish to have the option installed. Important: Dealers are to verify these four pieces of information prior to issuing a reimbursement check: 1. Original Owner Letter provided by General Motors. 2. Vehicle registration. 3. Driver’s license or state ID – verify that it matches the registration and owner letter. 4. If the package was purchased over the counter, the part must be returned to the dealer. (As applicable) Issue the customer a reimbursement check in the amount of $995.00 USD ($1,431.19 CAD). Record the check number in the Invoice Number field and record the VIN on the check. Customer Reimbursement (Customer Pay Out of Pocket For Repairs) Customer requests for reimbursement of previously paid repairs to correct the condition described in the bulletin can be submitted at any time to the dealer. See General Motors Service Policies and Procedures Manual, Product Field Action Customer Reimbursement Procedure (USA & Canada) or local Policies and Procedures, for details. Dealer Responsibility – For USA & Export (USA States, Territories, and Possessions) It is a violation of Federal law for a dealer to deliver a new motor vehicle or any new or used item of motor vehicle equipment (including a tire) covered by this notification under a sale or lease until the defect or noncompliance is remedied. The US National Traffic and Motor Vehicle Safety Act provides that each vehicle that is subject to a recall of this type must be adequately repaired within a reasonable time after the customer has tendered it for repair. A failure to repair within sixty days after tender of a vehicle is prima facie evidence of failure to repair within a reasonable time. If the condition is not adequately repaired within a reasonable time, the customer may be entitled to an identical or reasonably equivalent vehicle at no charge or to a refund of the purchase price less a reasonable allowance for depreciation. To avoid having to provide these burdensome remedies, every effort must be made to promptly schedule an appointment with each customer and to repair their vehicle as soon as possible. In the recall notification letters, customers are told how to contact the US National Highway Traffic Safety Administration if the recall is not completed within a reasonable time. Dealer Responsibility – All All new, used, GM Certified Used, courtesy transportation vehicles, dealer shuttle vehicles, etc. in dealers’ possession and subject to this recall must be held and inspected/repaired per the service procedure of this bulletin before customers take possession of these vehicles. Involved vehicles must be held and not delivered to customers, dealer-traded, released to auction, used for demonstration, or any other purpose. All GM Certified Used vehicles currently in the dealers’ inventory within the Certified Pre-Owned Inventory System (CPOIS) will be de-certified and must be held and remedied per the service procedure in this bulletin. Upon submitting an accepted/paid warranty transaction in the Global Warranty Management (GWM) system, the vehicle can be re-certified for sale within the CPOIS system, or once again be used in the CTP program. F/CMVSS Noncompliance Recall N222368110 Accessory High-Mounted Stop Light Inoperable Page 6 of 8 Dealers are to service all vehicles subject to this recall at no charge to customers, regardless of mileage, age of vehicle, or ownership, from this time forward. Customers who have recently purchased vehicles sold from your vehicle inventory, and for which there is no customer information indicated on the dealer listing, are to be contacted by the dealer. Arrangements are to be made to make the required correction according to the instructions contained in this bulletin. A copy of the customer letter is provided in this bulletin for your use in contacting customers. Recall follow-up cards should not be used for this purpose, since the customer may not as yet have received the notification letter. In summary, whenever a vehicle subject to this field action enters your vehicle inventory you must take the steps necessary to ensure the program correction has been made before selling the vehicle. In addition, for vehicles entering your facility for service, you are required to ensure the customer is aware of the open field action and make every reasonable effort to implement the program correction as set forth in this bulletin prior to releasing the vehicle. Dealer Reports – For USA & Export For dealers with involved vehicles, a listing has been prepared and will be available through GM GlobalConnect Maxis Field Action Reports or sent directly to export dealers. The Inventory tab of the dealer reports will contain VINs that apply to this recall. This information is intended to assist dealers with the PROMPT COMPLETION of these vehicles. The Customer In-Service tab will contain customer names and addresses from Motor Vehicle Registration Records. The use of such motor vehicle registration data for any purpose other than follow-up necessary to complete this recall may be a violation of law in several states. Courtesy Transportation – For USA & Canada Courtesy transportation is available for customers whose vehicles are involved in a product program and still within the warranty coverage period. See General Motors Service Policies and Procedures Manual for courtesy transportation program details. Customer Notification USA & Canada – General Motors will notify customers of this recall on their vehicle (see copy of customer letter included with this bulletin). GM bulletins are intended for use by professional technicians, NOT a “do-it-yourselfer”. They are written to inform these technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the tools, equipment, safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your dealer for information on whether your vehicle may benefit from the information. We Support Voluntary Technician Certification F/CMVSS Noncompliance Recall N222368110 Accessory High-Mounted Stop Light Inoperable Page 7 of 8 IMPORTANT SAFETY RECALL January 2023 This notice applies to your vehicle, VIN: _____________________________________ Dear General Motors Customer: This notice is sent to you in accordance with the National Traffic and Motor Vehicle Safety Act. General Motors has decided that certain 2022 model year Chevrolet Silverado 1500 and GMC Sierra 1500 vehicles fail to conform to Federal/Canada Motor Vehicle Safety Standard (FMVSS) 108, (CMVSS) 108. As a result, GM is conducting a recall. We apologize for this inconvenience. However, we are concerned about your safety and continued satisfaction with our products. IMPORTANT • Your vehicle is involved in GM safety recall N222368110. • Schedule an appointment with your GM dealer. • This service will be performed for you at no charge. Why is your vehicle being recalled? These vehicles may have been equipped at delivery with a dealer-installed accessory sport bar that (a) contains a high-mounted stop lamp that will not operate when installed according to the provided instructions and (b) blocks the vehicle’s existing high-mounted stop lamp. If the high-mounted stop lamp is not operable or visible to other road users, there is increased risk of a crash. What will we do? Your GM dealer will inspect the installation of the accessory bar and provide corrected vehicle wiring if necessary. If you have the accessory bar, but it is not installed, you will have the option to have it installed or to return it for a refund. This service will be performed for you at no charge. Because of service scheduling requirements, it is likely that your dealer will need your vehicle longer than the actual inspection and service correction time of approximately an hour. What should you do? You should contact your GM dealer to arrange a service appointment as soon as possible. Did you already pay for this repair? Even though you may have previously had repairs for this condition, you will still need to take your vehicle to your dealer for additional repairs. If you have already paid for repairs for the condition described in this letter, please complete the enclosed reimbursement form and present it to your dealer with all required documents. Working with your dealer will expedite your request, however, if this is not convenient, you may mail the completed reimbursement form and all required documents to Reimbursement Department, PO Box 33170, Detroit, MI 48232-5170. Do you have questions? If you have questions or concerns that your dealer is unable to resolve, please contact the appropriate Customer Assistance Center at the number listed below. For the hearing or speech impaired, please contact our Customer Assistance Center using the Telecommunication Relay Service by dialing 711 then providing the appropriate Customer Assistance Center number for your vehicle. Division Number Text Telephones (TTY) Chevrolet 1-800-222-1020 711 / 1-800-833-2438 GMC 1-800-462-8782 711 / 1-800-833-2438 Puerto Rico – English 1-866-467-9700 Puerto Rico – Español 1-866-467-9700 Virgin Islands 1-866-467-9700 If after contacting your dealer and the Customer Assistance Center, you are still not satisfied we have done our best to remedy this condition without charge and within a reasonable time, you may wish to write the Administrator, National F/CMVSS Noncompliance Recall N222368110 Accessory High-Mounted Stop Light Inoperable Page 8 of 8 Highway Traffic Safety Administration, 1200 New Jersey Avenue, SE, Washington, DC 20590, or call the toll-free Vehicle Safety Hotline at 1.888.327.4236 (TTY 1.800.424.9153), or go to http://www.nhtsa.gov. The National Highway Traffic Safety Administration Campaign ID Number for this recall is 22V463. Federal regulation requires that any vehicle lessor receiving this recall notice must forward a copy of this notice to the lessee within ten days. Regina A. Carto Vice President Global Product Safety and Systems Enclosure GM Recall: N222368110

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IMPORTANT SAFETY RECALL January 2023 This notice applies to your vehicle, VIN: _____________________________________ Dear General Motors Customer: This notice is sent to you in accordance with the National Traffic and Motor Vehicle Safety Act. General Motors has decided that certain 2022 model year Chevrolet Silverado 1500 and GMC Sierra 1500 vehicles fail to conform to Federal/Canada Motor Vehicle Safety Standard (FMVSS) 108, (CMVSS) 108. As a result, GM is conducting a recall. We apologize for this inconvenience. However, we are concerned about your safety and continued satisfaction with our products. IMPORTANT •Your vehicle is involved in GM safety recall N222368110. •Schedule an appointment with your GM dealer. •This service will be performed for you at no charge. Why is your vehicle being recalled? These vehicles may have been equipped at delivery with a dealer-installed accessory sport bar that (a) contains a high-mounted stop lamp that will not operate when installed according to the provided instructions and (b) blocks the vehicle’s existing high-mounted stop lamp. If the high-mounted stop lamp is not operable or visible to other road users, there is increased risk of a crash. What will we do? Your GM dealer will inspect the installation of the accessory bar and provide corrected vehicle wiring if necessary. If you have the accessory bar, but it is not installed, you will have the option to have it installed or to return it for a refund. This service will be performed for you at no charge. Because of service scheduling requirements, it is likely that your dealer will need your vehicle longer than the actual inspection and service correction time of approximately an hour. What should you do? You should contact your GM dealer to arrange a service appointment as soon as possible. Did you already pay for this repair? Even though you may have previously had repairs for this condition, you will still need to take your vehicle to your dealer for additional repairs. If you have already paid for repairs for the condition described in this letter, please complete the enclosed reimbursement form and present it to your dealer with all required documents. Working with your dealer will expedite your request, however, if this is not convenient, you may mail the completed reimbursement form and all required documents to Reimbursement Department, PO Box 33170, Detroit, MI 48232-5170. Do you have questions? If you have questions or concerns that your dealer is unable to resolve, please contact the appropriate Customer Assistance Center at the number listed below. For the hearing or speech impaired, please contact our Customer Assistance Center using the Telecommunication Relay Service by dialing 711 then providing the appropriate Customer Assistance Center number for your vehicle. Division Number Text Telephones (TTY) Chevrolet 1-800-222-1020 711 / 1-800-833-2438 GMC 1-800-462-8782 711 / 1-800-833-2438 Puerto Rico – English 1-866-467-9700 Puerto Rico – Español 1-866-467-9700 Virgin Islands 1-866-467-9700 If after contacting your dealer and the Customer Assistance Center, you are still not satisfied we have done our best to remedy this condition without charge and within a reasonable time, you may wish to write the Administrator, National Highway Traffic Safety Administration, 1200 New Jersey Avenue, SE, Washington, DC 20590, or call the toll-free Vehicle Safety Hotline at 1.888.327.4236 (TTY 1.800.424.9153), or go to http://www.nhtsa.gov. The National Highway Traffic Safety Administration Campaign ID Number for this recall is 22V463. Federal regulation requires that any vehicle lessor receiving this recall notice must forward a copy of this notice to the lessee within ten days. Regina A. Carto Vice President Global Product Safety and Systems Enclosure GM Recall: N222368110

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GM CUSTOMER CARE AND AFTERSALES DCS6215 URGENT – DISTRIBUTE IMMEDIATELY Date: July 14, 2022 Subject: N222368110 – Noncompliance Recall Accessory High-Mounted Stop Light Inoperable Application for Used Vehicle Working Capital Assistance Program (WCAP) Models: 2022 Chevrolet Silverado 1500 New 2022 GMC Sierra 1500 New To: All General Motors Dealers On June 30, 2022, GM sent to all GM dealers GlobalConnect Message GCUS-3-2565 regarding noncompliance recall N222368110. The required repair to complete this recall is not yet available. Until further instructions are received, the involved vehicles that are in dealers’ possession (new or used vehicle inventory, GM Certified Used, courtesy transportation vehicles, dealer shuttle vehicles, etc.) must be held and cannot be delivered to customers, dealer-traded, released to auction, used for demonstration purposes or put to any other use. This message is to inform dealers who have involved vehicles in their inventory that they can now apply for the used vehicle Working Capital Assistance Program (“WCAP”) for noncompliance recall N222368110. Before proceeding with the application process described below, dealers must verify vehicle eligibility based on the program terms and guidelines that were provided in GM GlobalConnect Message GCUS-9-10968 dated March 10, 2021. Applications submitted on ineligible vehicles are subject to chargeback of any incentives paid to the dealer under the WCAP. Because compensation and tracking requires visibility into dealers’ inventory, dealers must also have agreed to a Dealer Data Share agreement with GM in order to receive any compensation under this program. To apply for the WCAP for noncompliance recall N222368110, dealers must access the GM Global Warranty Management (GWM) system and submit a “ZSET” warranty transaction using the labor code provided below for each eligible vehicle. This zero dollar special transaction type is the dealer’s application for compensation and constitutes a representation from the dealer that the vehicle is eligible for WCAP assistance. Note: Acceptance of the warranty transaction does not ensure vehicle eligibility or guarantee the provision of any assistance as defined by program terms and guidelines. Labor Code Description Labor Time Trans Code 9800095 Working Capital Assistance for Noncompliance Recall N222368110 N/A ZSET To be eligible for the WCAP, a vehicle must be in dealer inventory at the time the related field action bulletin is released. If a vehicle has been delivered, wholesaled or otherwise disposed of prior to release of the bulletin, the vehicle is not eligible for assistance. Additionally, recalled vehicles taken in on trade may be eligible for assistance if the dealer immediately reports the vehicle in used vehicle inventory via its Dealer Management System (DMS) and makes application through the GWM system. To ensure that GM is receiving daily inventory information, which is necessary to process payments and make eligibility determinations under the WCAP, the dealer’s vehicles must be properly identified in the dealership’s DMS. A daily feed of this information is provided to GM through the Dealer Data Share (DDS) agreement. Beginning with the 1st quarter of 2019, all WCAP payments will be facilitated through the Global Warranty Management (GWM) system. For each eligible vehicle, a qualifying dealer will submit for WCAP vehicle enrollment with a “ZSET” transaction type and for reimbursement with a “ZFAT” transaction type both through the GWM system. If approved, a WCAP credit for that vehicle will be issued through the GWM system similar to any other warranty credit. WCAP submission instructions and the required labor code will also be provided in the appropriate field action bulletin. Each WCAP transaction being credited will be clearly identified on the dealer’s daily credit memo. In order to receive payment, a dealer must have timely reported the vehicle in used vehicle inventory, retained the vehicle until the related field action bulletin is released, and properly applied for the WCAP payment. The vehicle must also be otherwise eligible under WCAP rules and guidelines. GM reserves the right to amend, modify, terminate, or cancel this program at any time in its sole discretion. END OF MESSAGE GM CUSTOMER CARE AND AFTERSALES

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GLOBAL SAFETY FIELD INVESTIGATIONS DCS6204 URGENT – DISTRIBUTE IMMEDIATELY Date: June 30, 2022 Subject: Stop Delivery Order for Upcoming Noncompliance Recall N222368110 Models: 2022 Chevrolet Silverado 1500 New 2022 GMC Sierra 1500 New To: All General Motors Dealers STOP DELIVERY ORDER Effective immediately, stop the delivery of certain 2022 model year Chevrolet Silverado 1500 New and GMC Sierra 1500 New vehicles in new or used vehicle inventory. General Motors has notified the National Highway Traffic Safety Administration (NHTSA) about an upcoming noncompliance recall that involves these vehicles. The GM recall number is N222368110. It is a violation of federal law for a dealer to deliver a new motor vehicle or any new or used item of motor vehicle equipment (including a tire) covered by this notification until the noncompliance is remedied. Certain vehicles may fail to conform to S6.2.1 of Federal Motor Vehicle Safety Standard (FMVSS) No. 108, “Lamps, reflective devices, and associated equipment.” These vehicles may have been equipped at delivery with a dealer-installed accessory sport bar that (a) contains a high-mounted stop lamp that will not operate when installed according to the provided instructions and (b) blocks the vehicle’s existing high-mounted stop lamp. If the high-mounted stop lamp is not operable or visible to other road users, there is increased risk of a crash. To correct this condition, dealers will inspect the installation of the accessory bar and provide corrected vehicle wiring if necessary Dealer Notification Instructions. Because this safety recall involves equipment/parts also sold over-the-counter, dealers will be REQUIRED to search their stock and sales records for over-the-counter sales and provide the recall notice to the purchaser once the bulletin is released. Until further instructions are received, involved vehicles that are in dealers’ possession (new or used vehicle inventory, GM Certified Used, courtesy transportation vehicles, dealer shuttle vehicles, etc.) must be held and not delivered to customers, dealer-traded, released to auction, used for demonstration purposes or any other dealer use. All GM Certified Used vehicles currently in the dealers’ inventory within the Certified Pre-Owned Inventory System (CPOIS) will be de-certified. The Investigate Vehicle History (IVH) screen in the Global Warranty Management (GWM) system has been updated for this upcoming recall. This action has been taken to assist dealers with determining which vehicles are involved so they can properly respond to customer inquiries. Question and Answer Document (Q&A) Attached to this message you will find a document that addresses the ten most likely questions customers may have regarding this Noncompliance Recall. Please use this information as an aid to confidently answer customer concerns. Until the recall bulletin is released, the Investigate Vehicle History (IVH) screen in the Global Warranty Management (GWM) system will display “N/A” under Release Date and “Incomplete – Remedy not yet available” under Status. This means the required repair is not yet available and dealers should not attempt to perform any repairs. We are working with the supplier to obtain the required parts as quickly as possible. When a sufficient quantity of parts are available, the recall bulletin will be released and dealers can begin repairing vehicles. END OF MESSAGE GLOBAL SAFETY FIELD INVESTIGATIONS

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GLOBAL SAFETY FIELD INVESTIGATIONS DCS6392 URGENT – DISTRIBUTE IMMEDIATELY Date: January 6, 2023 Subject: N222368110 – Noncompliance Recall Accessory High-Mounted Stop Light Inoperable Models: 2022 Chevrolet Silverado 1500 New 2022 GMC Sierra 1500 New To: All General Motors Dealers General Motors is releasing Noncompliance Recall N222368110 today. The total number of U.S. vehicles involved is approximately 27. Please see the attached bulletin for details. Vehicles involved in this recall were placed on stop delivery June 30, 2022. Once the service procedure contained in the bulletin has been performed on the vehicle, the vehicle is released from stop delivery and the vehicle can be delivered to the customer. Question and Answer Document (Q&A) Attached to this message you will find a document that addresses the ten most likely questions customers may have regarding this Noncompliance Recall. Please use this information as an aid to confidently answer customer concerns. Working Capital Assistance Program (WCAP) Eligibility Vehicles which were in dealer inventory at the time of this bulletin release were eligible for WCAP. Please refer to the attached bulletin and GlobalConnect Message GCUS-9-9188 for additional information. Customer Letter Mailing The customer letter mailing will begin in January 2023. Global Warranty Management (GWM) The Required Field Action section on the Investigate Vehicle History (IVH) screen will be updated January 6, 2023. A Stock VIN list is not included as our records show there are no vehicles in dealer new inventory. Please hold all warranty transactions until IVH has been updated. END OF MESSAGE GLOBAL SAFETY FIELD INVESTIGATIONS

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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 22V-463 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : General Motors, LLC Submission Date : AUG 02, 2022 NHTSA Recall No. : 22V-463 Manufacturer Recall No. : N222368110 Manufacturer Information : Manufacturer Name : General Motors, LLC Address : 29427 Louis Chevrolet Road MAIL CODE 480-210-2V WARREN MI 48093 Company phone : 586-596-1733 Population : Number of potentially involved : 242 Estimated percentage with defect : 100 % Vehicle Information : Vehicle 1 : 2022-2022 GMC Sierra 1500 Vehicle Type : Body Style : Power Train : NR Descriptive Information : Vehicle orders and accessory shipping records were used to determine recall population. 2019-2021 model year vehicles and 2022 model year vehicles built with the previous electrical architecture (RPOs J21 and AMK) are not affected by this condition. This accessory is not intended for use on 2500/3500 series vehicles. 47 accessory sport bars were sold for GMC Sierra vehicles. Production Dates : FEB 21, 2022 – JUN 30, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Part 573 Safety Recall Report 22V-463 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 Vehicle 2 : 2022-2022 Chevrolet Silverado 1500 Vehicle Type : Body Style : Power Train : NR Descriptive Information : Vehicle orders and accessory shipping records were used to determine recall population. 2019-2021 model year vehicles and 2022 model year vehicles built with the previous electrical architecture (RPOs J21 and AMK) are not affected by this condition. This accessory is not intended for use on 2500/3500 series vehicles. VINs have been identified for 27 of the 195 accessory sport bars sold for Chevrolet Silverado vehicles. Production Dates : FEB 21, 2022 – JUN 30, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Description of Noncompliance : Description of the Noncompliance : General Motors has decided that certain 2022 model year Chevrolet Silverado and GMC Sierra vehicles may fail to conform to S6.2.1 of Federal Motor Vehicle Safety Standard (FMVSS) No. 108, “Lamps, reflective devices, and associated equipment.” These vehicles may have been equipped at delivery with a dealerinstalled accessory sport bar that (a) contains a high-mounted stop lamp that will not operate when installed according to the provided instructions and (b) blocks the vehicle’s existing high-mounted stop lamp. FMVSS 1 : 108 – Lamps, reflective devices, and assoc. Equipment FMVSS 2 : NR Description of the Safety Risk : If the high-mounted stop lamp is not operable or visible to other road users, there is increased risk of a crash. Description of the Cause : The instructions for wiring the subject accessory sport bar are not compatible with the electrical architecture in certain 2022 model year vehicles. Identification of Any Warning that can Occur : NR Involved Components : Component Name 1 : BAR ASM-PUBX ORNAMENTATION Component Description : Ornamental Pickup Box Bar Asm Component Part Number : 84571746, 84571747 Part 573 Safety Recall Report 22V-463 Page 3 The information contained in this report was submitted pursuant to 49 CFR §573 Supplier Identification : Component Manufacturer Name : Putco Inc. Address : 5701 NE 22 Street Des Moines Iowa 50313 Country : United States Chronology : On April 8, 2022, a GM engineer submitted an issue to GM’s Speak Up For Safety (SUFS) program based on a notification that a dealership could not successfully install the subject accessory sport bar on a 2022 model year Chevrolet Silverado. GM opened a formal investigation on April 27, 2022. GM’s review of field data identified 15 relevant field claims related to this condition received by GM between April 1 and June 3, 2022. GM is not aware of any accidents or injuries associated with this condition. Between May 24 and June 22, 2022, GM’s investigator analyzed sales records to identify potentially affected VINs and over-the-counter sales. On June 23, 2022, GM’s Safety Field Action Decision Authority (SFADA) decided to conduct a noncompliance recall. Description of Remedy : Description of Remedy Program : Dealers will inspect the installation of the accessory bar and provide corrected vehicle wiring if necessary. Pursuant to 577.11, GM will provide reimbursement to owners for repairs according to the plan submitted on May 12, 2021. How Remedy Component Differs from Recalled Component : A corrected wiring service kit for affected 2022 model year vehicles provides proper function of the high-mounted stop lamp in the accessory sport bar. Identify How/When Recall Condition was Corrected in Production : A parts quarantine was issued to accessory distributors and installers on April 14, 2022. This quarantine was later updated to apply only to 2022 model year applications. Recall Schedule : Description of Recall Schedule : Dealers will be notified on June 30, 2022. Interim owner notification is estimated to mail on August 10, 2022. GM estimates owner notification of the remedy will mail September 12, 2022. Planned Dealer Notification Date : JUN 30, 2022 – JUN 30, 2022 Planned Owner Notification Date : SEP 12, 2022 – SEP 12, 2022 Part 573 Safety Recall Report 22V-463 Page 4 The information contained in this report was submitted pursuant to 49 CFR §573 * NR – Not Reported

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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 22V-463 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : General Motors, LLC Submission Date : JUL 27, 2022 NHTSA Recall No. : 22V-463 Manufacturer Recall No. : N222368110 Manufacturer Information : Manufacturer Name : General Motors, LLC Address : 29427 Louis Chevrolet Road MAIL CODE 480-210-2V WARREN MI 48093 Company phone : 586-596-1733 Population : Number of potentially involved : 242 Estimated percentage with defect : 100 % Vehicle Information : Vehicle 1 : 2022-2022 Chevrolet Silverado 1500 Vehicle Type : Body Style : Power Train : NR Descriptive Information : Vehicle orders and accessory shipping records were used to determine recall population. 2019-2021 model year vehicles and 2022 model year vehicles built with the previous electrical architecture (RPOs J21 and AMK) are not affected by this condition. This accessory is not intended for use on 2500/3500 series vehicles. VINs have been identified for 27 of the 195 accessory sport bars sold for Chevrolet Silverado vehicles. Production Dates : FEB 21, 2022 – JUN 30, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Part 573 Safety Recall Report 22V-463 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 Vehicle 2 : 2022-2022 GMC Sierra 1500 Vehicle Type : Body Style : Power Train : NR Descriptive Information : Vehicle orders and accessory shipping records were used to determine recall population. 2019-2021 model year vehicles and 2022 model year vehicles built with the previous electrical architecture (RPOs J21 and AMK) are not affected by this condition. This accessory is not intended for use on 2500/3500 series vehicles. 47 accessory sport bars were sold for GMC Sierra vehicles. Production Dates : FEB 21, 2022 – JUN 30, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Description of Noncompliance : Description of the Noncompliance : General Motors has decided that certain 2022 model year Chevrolet Silverado and GMC Sierra vehicles may fail to conform to S6.2.1 of Federal Motor Vehicle Safety Standard (FMVSS) No. 108, “Lamps, reflective devices, and associated equipment.” These vehicles may have been equipped at delivery with a dealerinstalled accessory sport bar that (a) contains a high-mounted stop lamp that will not operate when installed according to the provided instructions and (b) blocks the vehicle’s existing high-mounted stop lamp. FMVSS 1 : 108 – Lamps, reflective devices, and assoc. Equipment FMVSS 2 : NR Description of the Safety Risk : If the high-mounted stop lamp is not operable or visible to other road users, there is increased risk of a crash. Description of the Cause : The instructions for wiring the subject accessory sport bar are not compatible with the electrical architecture in certain 2022 model year vehicles. Identification of Any Warning that can Occur : NR Involved Components : Component Name 1 : BAR ASM-PUBX ORNAMENTATION Component Description : Ornamental Pickup Box Bar Asm Component Part Number : 84571746, 84571747 Part 573 Safety Recall Report 22V-463 Page 3 The information contained in this report was submitted pursuant to 49 CFR §573 Supplier Identification : Component Manufacturer Name : Putco Inc. Address : 5701 NE 22 Street Des Moines Iowa 50313 Country : United States Chronology : On April 8, 2022, a GM engineer submitted an issue to GM’s Speak Up For Safety (SUFS) program based on a notification that a dealership could not successfully install the subject accessory sport bar on a 2022 model year Chevrolet Silverado. GM opened a formal investigation on April 27, 2022. GM’s review of field data identified 15 relevant field claims related to this condition received by GM between April 1 and June 3, 2022. GM is not aware of any accidents or injuries associated with this condition. Between May 24 and June 22, 2022, GM’s investigator analyzed sales records to identify potentially affected VINs and over-the-counter sales. On June 23, 2022, GM’s Safety Field Action Decision Authority (SFADA) decided to conduct a noncompliance recall. Description of Remedy : Description of Remedy Program : Dealers will inspect the installation of the accessory bar and provide corrected vehicle wiring if necessary. Pursuant to 577.11, GM will provide reimbursement to owners for repairs according to the plan submitted on May 12, 2021. How Remedy Component Differs from Recalled Component : A corrected wiring service kit for affected 2022 model year vehicles provides proper function of the high-mounted stop lamp in the accessory sport bar. Identify How/When Recall Condition was Corrected in Production : A parts quarantine was issued to accessory distributors and installers on April 14, 2022. This quarantine was later updated to apply only to 2022 model year applications. Recall Schedule : Description of Recall Schedule : Dealers will be notified on June 30, 2022. Interim owner notification is estimated to mail on August 10, 2022. GM will provide an estimate for owner notification of the remedy when it is available. Planned Dealer Notification Date : JUN 30, 2022 – JUN 30, 2022 Planned Owner Notification Date : AUG 15, 2022 – AUG 15, 2022 Part 573 Safety Recall Report 22V-463 Page 4 The information contained in this report was submitted pursuant to 49 CFR §573 * NR – Not Reported

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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 22V-463 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : General Motors, LLC Submission Date : JUN 30, 2022 NHTSA Recall No. : 22V-463 Manufacturer Recall No. : N222368110 Manufacturer Information : Manufacturer Name : General Motors, LLC Address : 29427 Louis Chevrolet Road MAIL CODE 480-210-2V WARREN MI 48093 Company phone : 586-596-1733 Population : Number of potentially involved : 242 Estimated percentage with defect : 100 % Vehicle Information : Vehicle 1 : 2022-2022 GMC Sierra 1500 Vehicle Type : Body Style : Power Train : NR Descriptive Information : Vehicle orders and accessory shipping records were used to determine recall population. 2019-2021 model year vehicles and 2022 model year vehicles built with the previous electrical architecture (RPOs J21 and AMK) are not affected by this condition. This accessory is not intended for use on 2500/3500 series vehicles. 47 accessory sport bars were sold for GMC Sierra vehicles. Production Dates : FEB 21, 2022 – JUN 30, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Part 573 Safety Recall Report 22V-463 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 Vehicle 2 : 2022-2022 Chevrolet Silverado 1500 Vehicle Type : Body Style : Power Train : NR Descriptive Information : Vehicle orders and accessory shipping records were used to determine recall population. 2019-2021 model year vehicles and 2022 model year vehicles built with the previous electrical architecture (RPOs J21 and AMK) are not affected by this condition. This accessory is not intended for use on 2500/3500 series vehicles. VINs have been identified for 27 of the 195 accessory sport bars sold for Chevrolet Silverado vehicles. Production Dates : FEB 21, 2022 – JUN 30, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Description of Noncompliance : Description of the Noncompliance : General Motors has decided that certain 2022 model year Chevrolet Silverado and GMC Sierra vehicles may fail to conform to S6.2.1 of Federal Motor Vehicle Safety Standard (FMVSS) No. 108, “Lamps, reflective devices, and associated equipment.” These vehicles may have been equipped at delivery with a dealerinstalled accessory sport bar that (a) contains a high-mounted stop lamp that will not operate when installed according to the provided instructions and (b) blocks the vehicle’s existing high-mounted stop lamp. FMVSS 1 : 108 – Lamps, reflective devices, and assoc. Equipment FMVSS 2 : NR Description of the Safety Risk : If the high-mounted stop lamp is not operable or visible to other road users, there is increased risk of a crash. Description of the Cause : The instructions for wiring the subject accessory sport bar are not compatible with the electrical architecture in certain 2022 model year vehicles. Identification of Any Warning that can Occur : NR Involved Components : Component Name 1 : BAR ASM-PUBX ORNAMENTATION Component Description : Ornamental Pickup Box Bar Asm Component Part Number : 84571746, 84571747 Part 573 Safety Recall Report 22V-463 Page 3 The information contained in this report was submitted pursuant to 49 CFR §573 Supplier Identification : Component Manufacturer Name : Putco Inc. Address : 5701 NE 22 Street Des Moines Iowa 50313 Country : United States Chronology : On April 8, 2022, a GM engineer submitted an issue to GM’s Speak Up For Safety (SUFS) program based on a notification that a dealership could not successfully install the subject accessory sport bar on a 2022 model year Chevrolet Silverado. GM opened a formal investigation on April 27, 2022. GM’s review of field data identified 15 relevant field claims related to this condition received by GM between April 1 and June 3, 2022. GM is not aware of any accidents or injuries associated with this condition. Between May 24 and June 22, 2022, GM’s investigator analyzed sales records to identify potentially affected VINs and over-the-counter sales. On June 23, 2022, GM’s Safety Field Action Decision Authority (SFADA) decided to conduct a noncompliance recall. Description of Remedy : Description of Remedy Program : Dealers will inspect the installation of the accessory bar and provide corrected vehicle wiring if necessary. Pursuant to 577.11, GM will provide reimbursement to owners for repairs according to the plan submitted on May 12, 2021. How Remedy Component Differs from Recalled Component : A corrected wiring service kit for affected 2022 model year vehicles provides proper function of the high-mounted stop lamp in the accessory sport bar. Identify How/When Recall Condition was Corrected in Production : A parts quarantine was issued to accessory distributors and installers on April 14, 2022. This quarantine was later updated to apply only to 2022 model year applications. Recall Schedule : Description of Recall Schedule : Dealers will be notified on June 30, 2022. Owner notification is estimated to begin on August 15, 2022. Planned Dealer Notification Date : JUN 30, 2022 – JUN 30, 2022 Planned Owner Notification Date : AUG 15, 2022 – AUG 15, 2022 Part 573 Safety Recall Report 22V-463 Page 4 The information contained in this report was submitted pursuant to 49 CFR §573 * NR – Not Reported

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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 22V-463 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : General Motors, LLC Submission Date : NOV 17, 2022 NHTSA Recall No. : 22V-463 Manufacturer Recall No. : N222368110 Manufacturer Information : Manufacturer Name : General Motors, LLC Address : 29427 Louis Chevrolet Road MAIL CODE 480-210-2V WARREN MI 48093 Company phone : 586-596-1733 Population : Number of potentially involved : 242 Estimated percentage with defect : 100 % Vehicle Information : Vehicle 1 : 2022-2022 GMC Sierra 1500 Vehicle Type : Body Style : Power Train : NR Descriptive Information : Vehicle orders and accessory shipping records were used to determine recall population. 2019-2021 model year vehicles and 2022 model year vehicles built with the previous electrical architecture (RPOs J21 and AMK) are not affected by this condition. This accessory is not intended for use on 2500/3500 series vehicles. 47 accessory sport bars were sold for GMC Sierra vehicles. Production Dates : FEB 21, 2022 – JUN 30, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Part 573 Safety Recall Report 22V-463 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 Vehicle 2 : 2022-2022 Chevrolet Silverado 1500 Vehicle Type : Body Style : Power Train : NR Descriptive Information : Vehicle orders and accessory shipping records were used to determine recall population. 2019-2021 model year vehicles and 2022 model year vehicles built with the previous electrical architecture (RPOs J21 and AMK) are not affected by this condition. This accessory is not intended for use on 2500/3500 series vehicles. VINs have been identified for 27 of the 195 accessory sport bars sold for Chevrolet Silverado vehicles. Production Dates : FEB 21, 2022 – JUN 30, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Description of Noncompliance : Description of the Noncompliance : General Motors has decided that certain 2022 model year Chevrolet Silverado and GMC Sierra vehicles may fail to conform to S6.2.1 of Federal Motor Vehicle Safety Standard (FMVSS) No. 108, “Lamps, reflective devices, and associated equipment.” These vehicles may have been equipped at delivery with a dealerinstalled accessory sport bar that (a) contains a high-mounted stop lamp that will not operate when installed according to the provided instructions and (b) blocks the vehicle’s existing high-mounted stop lamp. FMVSS 1 : 108 – Lamps, reflective devices, and assoc. Equipment FMVSS 2 : NR Description of the Safety Risk : If the high-mounted stop lamp is not operable or visible to other road users, there is increased risk of a crash. Description of the Cause : The instructions for wiring the subject accessory sport bar are not compatible with the electrical architecture in certain 2022 model year vehicles. Identification of Any Warning that can Occur : NR Involved Components : Component Name 1 : BAR ASM-PUBX ORNAMENTATION Component Description : Ornamental Pickup Box Bar Asm Component Part Number : 84571746, 84571747 Part 573 Safety Recall Report 22V-463 Page 3 The information contained in this report was submitted pursuant to 49 CFR §573 Supplier Identification : Component Manufacturer Name : Putco Inc. Address : 5701 NE 22 Street Des Moines Iowa 50313 Country : United States Chronology : On April 8, 2022, a GM engineer submitted an issue to GM’s Speak Up For Safety (SUFS) program based on a notification that a dealership could not successfully install the subject accessory sport bar on a 2022 model year Chevrolet Silverado. GM opened a formal investigation on April 27, 2022. GM’s review of field data identified 15 relevant field claims related to this condition received by GM between April 1 and June 3, 2022. GM is not aware of any accidents or injuries associated with this condition. Between May 24 and June 22, 2022, GM’s investigator analyzed sales records to identify potentially affected VINs and over-the-counter sales. On June 23, 2022, GM’s Safety Field Action Decision Authority (SFADA) decided to conduct a noncompliance recall. Description of Remedy : Description of Remedy Program : Dealers will inspect the installation of the accessory bar and provide corrected vehicle wiring if necessary. Pursuant to 577.11, GM will provide reimbursement to owners for repairs according to the plan submitted on May 12, 2021. How Remedy Component Differs from Recalled Component : A corrected wiring service kit for affected 2022 model year vehicles provides proper function of the high-mounted stop lamp in the accessory sport bar. Identify How/When Recall Condition was Corrected in Production : A parts quarantine was issued to accessory distributors and installers on April 14, 2022. This quarantine was later updated to apply only to 2022 model year applications. Recall Schedule : Description of Recall Schedule : Dealers will be notified on June 30, 2022. Interim owner notification is estimated to mail on August 10, 2022. GM estimates owner notification of the remedy will mail December 17, 2022. Planned Dealer Notification Date : JUN 30, 2022 – JUN 30, 2022 Planned Owner Notification Date : DEC 17, 2022 – DEC 17, 2022 Part 573 Safety Recall Report 22V-463 Page 4 The information contained in this report was submitted pursuant to 49 CFR §573 * NR – Not Reported

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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 22V-463 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : General Motors, LLC Submission Date : DEC 15, 2022 NHTSA Recall No. : 22V-463 Manufacturer Recall No. : N222368110 Manufacturer Information : Manufacturer Name : General Motors, LLC Address : 29427 Louis Chevrolet Road MAIL CODE 480-210-2V WARREN MI 48093 Company phone : 586-596-1733 Population : Number of potentially involved : 242 Estimated percentage with defect : 100 % Vehicle Information : Vehicle 1 : 2022-2022 Chevrolet Silverado 1500 Vehicle Type : Body Style : Power Train : NR Descriptive Information : Vehicle orders and accessory shipping records were used to determine recall population. 2019-2021 model year vehicles and 2022 model year vehicles built with the previous electrical architecture (RPOs J21 and AMK) are not affected by this condition. This accessory is not intended for use on 2500/3500 series vehicles. VINs have been identified for 27 of the 195 accessory sport bars sold for Chevrolet Silverado vehicles. Production Dates : FEB 21, 2022 – JUN 30, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Part 573 Safety Recall Report 22V-463 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 Vehicle 2 : 2022-2022 GMC Sierra 1500 Vehicle Type : Body Style : Power Train : NR Descriptive Information : Vehicle orders and accessory shipping records were used to determine recall population. 2019-2021 model year vehicles and 2022 model year vehicles built with the previous electrical architecture (RPOs J21 and AMK) are not affected by this condition. This accessory is not intended for use on 2500/3500 series vehicles. 47 accessory sport bars were sold for GMC Sierra vehicles. Production Dates : FEB 21, 2022 – JUN 30, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Description of Noncompliance : Description of the Noncompliance : General Motors has decided that certain 2022 model year Chevrolet Silverado and GMC Sierra vehicles may fail to conform to S6.2.1 of Federal Motor Vehicle Safety Standard (FMVSS) No. 108, “Lamps, reflective devices, and associated equipment.” These vehicles may have been equipped at delivery with a dealerinstalled accessory sport bar that (a) contains a high-mounted stop lamp that will not operate when installed according to the provided instructions and (b) blocks the vehicle’s existing high-mounted stop lamp. FMVSS 1 : 108 – Lamps, reflective devices, and assoc. Equipment FMVSS 2 : NR Description of the Safety Risk : If the high-mounted stop lamp is not operable or visible to other road users, there is increased risk of a crash. Description of the Cause : The instructions for wiring the subject accessory sport bar are not compatible with the electrical architecture in certain 2022 model year vehicles. Identification of Any Warning that can Occur : NR Involved Components : Component Name 1 : BAR ASM-PUBX ORNAMENTATION Component Description : Ornamental Pickup Box Bar Asm Component Part Number : 84571746, 84571747 Part 573 Safety Recall Report 22V-463 Page 3 The information contained in this report was submitted pursuant to 49 CFR §573 Supplier Identification : Component Manufacturer Name : Putco Inc. Address : 5701 NE 22 Street Des Moines Iowa 50313 Country : United States Chronology : On April 8, 2022, a GM engineer submitted an issue to GM’s Speak Up For Safety (SUFS) program based on a notification that a dealership could not successfully install the subject accessory sport bar on a 2022 model year Chevrolet Silverado. GM opened a formal investigation on April 27, 2022. GM’s review of field data identified 15 relevant field claims related to this condition received by GM between April 1 and June 3, 2022. GM is not aware of any accidents or injuries associated with this condition. Between May 24 and June 22, 2022, GM’s investigator analyzed sales records to identify potentially affected VINs and over-the-counter sales. On June 23, 2022, GM’s Safety Field Action Decision Authority (SFADA) decided to conduct a noncompliance recall. Description of Remedy : Description of Remedy Program : Dealers will inspect the installation of the accessory bar and provide corrected vehicle wiring if necessary. Pursuant to 577.11, GM will provide reimbursement to owners for repairs according to the plan submitted on May 12, 2021. How Remedy Component Differs from Recalled Component : A corrected wiring service kit for affected 2022 model year vehicles provides proper function of the high-mounted stop lamp in the accessory sport bar. Identify How/When Recall Condition was Corrected in Production : A parts quarantine was issued to accessory distributors and installers on April 14, 2022. This quarantine was later updated to apply only to 2022 model year applications. Recall Schedule : Description of Recall Schedule : Dealers will be notified on June 30, 2022. Interim owner notification is estimated to mail on August 10, 2022. GM estimates owner notification of the remedy will mail January 17, 2023. Planned Dealer Notification Date : JUN 30, 2022 – JUN 30, 2022 Planned Owner Notification Date : JAN 17, 2023 – JAN 17, 2023 Part 573 Safety Recall Report 22V-463 Page 4 The information contained in this report was submitted pursuant to 49 CFR §573 * NR – Not Reported

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