N212351032 Rear Drive Shaft Loss of Propulsion – 2021 Cadillac Chevrolet GMC

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Product Safety Recall N212351032 Rear Drive Shaft Loss of Propulsion Copyright 2022 General Motors. All Rights Reserved. Page 1 of 5 Release Date: March 2022 Revision: 01 Revision Description: This bulletin has been revised to update part numbers and to include the customer letter. Please discard all previous copies of bulletin N212351032. 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 January 27, 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. Make Model Model Year RPO Description From To Cadillac Escalade 2021 2021 G86 or G96 Limited Slip Differential Or Electronic Differential Escalade ESV Chevrolet Suburban Tahoe GMC Yukon Yukon XL 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 a defect, which relates to motor vehicle safety, exists in certain 2021 model year Cadillac Escalade and Escalade ESV, Chevrolet Suburban and Tahoe, and GMC Yukon and Yukon XL vehicles. The rear wheel drive shaft assemblies in these vehicles may have been manufactured by GM’s supplier with recirculating balls that were not properly heat treated. The recirculating balls may deform over time, resulting in noise and vibration. With continued use, the affected joint in the drive shaft assembly could seize and the vehicle could lose propulsion. If the vehicle loses propulsion, there is increased risk of a crash. Correction Dealers will replace both rear wheel drive shaft assemblies. Parts Quantity Part Name Part No. 1 Left Rear Wheel Drive Shaft 84856645 1 Right Rear Wheel Drive Shaft 84856646 2 Rear Axle Nut 11612295 1 Threadlocker (1 Bottle services approximately 4 rear wheel drive shafts) (Loctite 272 equivalent) 19369733 US 10953488 CA Export (obtain locally) Note: Use the VIN and the GM Electronic Parts Catalog (EPC) to determine which rear wheel drive shaft(s) to order. 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 Labor Operation Description Labor Time Trans. Type Net Item 9106154 Rear Wheel Drive Shaft Replacement – Both Sides G86 G96 1.9 2.1 ZFAT * 9106155 Floor Plan Reimbursement – NEW INVENTORY ONLY N/A ** 9106156 Working Capital Assistance Program Reimbursement – USED INVENTORY ONLY N/A *** Product Safety Recall N212351032 Rear Drive Shaft Loss of Propulsion Page 2 of 5 * The amount identified in “Net Item” should represent the actual sum total of the current GMCC&A Dealer net price for Threadlocker needed to perform the required repairs, not to exceed $2.00 USD, $2.51 CAD, plus applicable Mark-Up or Landed Cost (for Export). Note: To avoid having to “H” route the floor plan / WCAP transaction for approval, it must be submitted prior to the repair transaction. 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 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 (January 27, 2022) to the date the repair is completed, and the vehicle is ready for sale (not to exceed 48 days): Vehicle Floor Plan Reimbursement Amount USA Canada 2021 Cadillac Escalade $11.40 $15.89 2021 Cadillac Escalade ESV $11.85 $15.46 2021 Chevrolet Suburban $7.89 $10.74 2021 Chevrolet Tahoe $7.48 $9.53 2021 GMC Yukon $8.54 $9.86 2021 GMC Yukon XL $8.94 $9.82 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, 9800086, provided in the dealer message sent on February 11, 2022, 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 (January 27, 2022) to the date the VIN was placed in “open” status in IVH. (Maximum Number of days of WCAP is calculated from the “Release Date” on VINs in “Open” Status in IVH, and will be adjusted as additional releases occur.) Vehicle Working Capital Assistance Reimbursement Amount USA Canada 2021 Cadillac Escalade $50.89 $64.08 2021 Cadillac Escalade ESV $51.07 $63.90 2021 Chevrolet Suburban $34.05 $41.67 2021 Chevrolet Tahoe $32.88 $39.79 2021 GMC Yukon $34.21 $41.73 2021 GMC Yukon XL $34.70 $42.52 Service Procedure Replace both Rear Wheel Drive Shafts. Refer to Rear Wheel Drive Shaft Replacement – Right Side and Rear Wheel Driveshaft Replacement – Left Side (G86) or Rear Wheel Driveshaft Replacement – Left Side (G96) in SI. 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 Product Safety Recall N212351032 Rear Drive Shaft Loss of Propulsion Page 3 of 5 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. 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 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). Export – Letters will be sent to known owners of record located within areas covered by the US National Traffic and Motor Vehicle Safety Act. For owners outside these areas, dealers should notify customers using the attached sample letter. 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 Product Safety Recall N212351032 Rear Drive Shaft Loss of Propulsion Page 4 of 5 IMPORTANT SAFETY RECALL March 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 a defect, which relates to motor vehicle safety, exists in certain 2021 model year Cadillac Escalade, Escalade ESV, Chevrolet Suburban, Tahoe, or GMC Yukon, Yukon XL vehicles. As a result, GM is conducting a safety 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 N212351032. • Schedule an appointment with your GM dealer. • This service will be performed for you at no charge. Why is your vehicle being recalled? The rear-wheel drive-shaft assemblies in these vehicles may have been manufactured by GM’s supplier with recirculating balls that were not properly heat treated. The recirculating balls may deform over time, resulting in noise and vibration. With continued use, the affected joint in the drive-shaft assembly could seize and the vehicle could lose propulsion. If the vehicle loses propulsion, there is increased risk of a crash. What will we do? Your GM dealer will replace both rear wheel drive shaft assemblies. 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 service correction time of approximately 1 hour and 5 minutes. What should you do? You should contact your GM dealer to arrange a service appointment as soon as possible. Do you have questions? If you have any 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) Cadillac 1-800-333-4223 711 / 1-800-833-2438 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.safercar.gov. The National Highway Traffic Safety Administration Campaign ID Number for this recall is 22V036. Federal regulation requires that any vehicle lessor receiving this recall notice must forward a copy of this notice to the lessee within ten days. Product Safety Recall N212351032 Rear Drive Shaft Loss of Propulsion Page 5 of 5 Regina A. Carto Vice President Global Product Safety and Systems GM Recall: N212351032

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This is a representative letter. Customer letters are personalized and list specific model, model year and VIN. IMPORTANT SAFETY RECALL March 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 a defect which relates to motor vehicle safety exists in certain 2021 model year Cadillac Escalade and Escalade ESV, Chevrolet Suburban and Tahoe, and GMC Yukon and Yukon XL vehicles. As a result, GM is conducting a safety 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 recall N212351030, N212351031, or N212351032. • Schedule an appointment with your GM dealer. • This service will be performed for you at no charge. Why is your vehicle being recalled? The rear-wheel drive-shaft assemblies in these vehicles may have been manufactured by GM’s supplier with recirculating balls that were not properly heat treated. The recirculating balls may deform over time, resulting in noise and vibration. With continued use, the affected joint in the drive-shaft assembly could seize and the vehicle could lose propulsion. If the vehicle loses propulsion, there is increased risk of a crash. What will we do? Your GM dealer will replace the left rear-wheel drive-shaft assembly. 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 service correction time of approximately 1 hour and 25 minutes. What should you do? You should contact your GM dealer to arrange a service appointment as soon as possible. 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) Cadillac 1-866-982-2339 1-800-833-2622 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 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.safercar.gov. The National Highway Traffic Safety Administration Campaign ID Number for this recall is 22V036. 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 N212351030, N212351031, N212351032

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GLOBAL SAFETY FIELD INVESTIGATIONS DCS6089 URGENT – DISTRIBUTE IMMEDIATELY Date: March 16, 2022 Subject: REVISION: N212351032-01 – Product Safety Recall Rear Drive Shaft Loss of Propulsion Part Number updated and Customer Letter Added Models: 2021 Cadillac Escalade / Escalade ESV 2021 Chevrolet Suburban / Tahoe 2021 GMC Yukon / Yukon XL Equipped with Limited Slip Differential (RPO G86) or Electronic Differential (RPO G96) To: All General Motors Dealers Bulletin N212351032-01 has been revised to update part numbers and include a copy of the customer notification letter. Please discard all copies of bulletin N212351032. Customer Letter Mailing The customer letter mailing will begin on March 31, 2022. END OF MESSAGE GLOBAL SAFETY FIELD INVESTIGATIONS

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GM CUSTOMER CARE AND AFTERSALES DCS6049 URGENT – DISTRIBUTE IMMEDIATELY Date: February 11, 2022 Subject: Safety Recalls N212351030 (LH), N212351031 (RH), N212351032 (Both) Rear Drive Shaft Loss of Propulsion Application for Used Vehicle Working Capital Assistance Program (WCAP) Models: 2021 Cadillac Escalade 2021 Cadillac Escalade ESV 2021 Chevrolet Suburban 2021 Chevrolet Tahoe 2021 GMC Yukon 2021 GMC Yukon XL To: All General Motors Dealers On January 27, 2022, GM sent to all GM dealers GlobalConnect Message GCUS-3-2414 regarding safety recall numbers N212351030, N212351031, and N212351032. 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 safety recall numbers N212351030, N212351031, and N212351032. 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 safety recalls N212351030, N212351031, and N212351032, 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 9800086 Working Capital Assistance for Safety Recalls N212351030, N212351031, and N212351032 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 DCS6078 URGENT – DISTRIBUTE IMMEDIATELY Date: March 14, 2022 Subject: N212351032 – Safety Recall Rear Drive Shaft Loss of Propulsion Models: 2021 Cadillac Escalade / Escalade ESV 2021 Chevrolet Suburban / Tahoe 2021 GMC Yukon / Yukon XL Equipped with Limited Slip Differential (RPO G86) or Electronic Differential (RPO G96) To: All General Motors Dealers General Motors is releasing Safety Recall N212351032 today. The total number of U.S. vehicles involved is approximately 554. Please see the attached bulletin for details. Vehicles involved in this recall were placed on stop delivery January 27, 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 Safety 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 WCA. Please refer to the attached bulletin and GlobalConnect Message GCUS-9-9188 for additional information. Customer Letter Mailing The customer letter mailing will begin late March, 2022. Global Warranty Management (GWM) The Required Field Action section on the Investigate Vehicle History (IVH) screen will be updated March 14, 2022. A list of involved vehicles in dealer new inventory is attached to this message. Please hold all warranty transactions until IVH has been updated. END OF MESSAGE GLOBAL SAFETY FIELD INVESTIGATIONS

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GLOBAL SAFETY FIELD INVESTIGATIONS DCS6038 URGENT – DISTRIBUTE IMMEDIATELY Date: January 27, 2022 Subject: Upcoming Safety Recalls N212351030 (LH), N212351031 (RH), N212351032 (Both) Rear Drive Shaft Loss of Propulsion Models: 2021 Cadillac Escalade 2021 Cadillac Escalade ESV 2021 Chevrolet Suburban 2021 Chevrolet Tahoe 2021 GMC Yukon 2021 GMC Yukon XL To: All General Motors Dealers General Motors has notified the National Highway Traffic Safety Administration (NHTSA) about an upcoming safety recall that involves certain 2021 model year Cadillac Escalade, Escalade ESV, Chevrolet Suburban, Tahoe, GMC Yukon, Yukon XL vehicles. The GM recall numbers are N212351030, N212351031, and N212351032. 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 defect is remedied. The rear-wheel drive-shaft assemblies in these vehicles may have been manufactured by GM’s supplier with recirculating balls that were not properly heat treated. The recirculating balls may deform over time, resulting in noise and vibration. With continued use, the affected joint in the drive-shaft assembly could seize and the vehicle could lose propulsion. If the vehicle loses propulsion, there is increased risk of a crash. Parts are not currently available, but when parts are available, dealers are to replace suspect drive shafts. Suspect drive shafts may be on the left side and/or right side. 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 will be updated for this upcoming recall on January 27, 2022. 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 Safety Recall. Please use this information as an aid to confidently answer customer concerns. Dealers will be advised when the recall bulletin is released. Until the recall bulletin is released, the IVH screen in GWM 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. END OF MESSAGE GLOBAL SAFETY FIELD INVESTIGATIONS

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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 22V-036 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : General Motors, LLC Submission Date : FEB 03, 2022 NHTSA Recall No. : 22V-036 Manufacturer Recall No. : N212351030 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 : 1,789 Estimated percentage with defect : 100 % Vehicle Information : Vehicle 1 : 2021-2021 Cadillac Escalade Vehicle Type : Body Style : Power Train : NR Descriptive Information : Manufacturing records and component trace data were used to determine vehicles that received suspect rear-wheel drive-shaft assemblies produced during the supplier’s suspect window. Vehicles equipped with assemblies produced outside of the suspect window, either during build or through subsequent repair, are not included in this recall. There are 106 Cadillac Escalade vehicles included in this recall. Production Dates : SEP 24, 2021 – OCT 04, 2021 VIN Range 1 : Begin : NR End : NR Not sequential Part 573 Safety Recall Report 22V-036 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 Vehicle 2 : 2021-2021 Cadillac Escalade ESV Vehicle Type : Body Style : Power Train : NR Descriptive Information : Manufacturing records and component trace data were used to determine vehicles that received suspect rear-wheel drive-shaft assemblies produced during the supplier’s suspect window. Vehicles equipped with assemblies produced outside of the suspect window, either during build or through subsequent repair, are not included in this recall. There are 90 Cadillac Escalade ESV vehicles included in this recall. Production Dates : SEP 24, 2021 – OCT 04, 2021 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 3 : 2021-2021 GMC Yukon XL Vehicle Type : Body Style : Power Train : NR Descriptive Information : Manufacturing records and component trace data were used to determine vehicles that received suspect rear-wheel drive-shaft assemblies produced during the supplier’s suspect window. Vehicles equipped with assemblies produced outside of the suspect window, either during build or through subsequent repair, are not included in this recall. There are 192 GMC Yukon XL vehicles included in this recall. Production Dates : SEP 24, 2021 – OCT 04, 2021 VIN Range 1 : Begin : NR End : NR Not sequential Part 573 Safety Recall Report 22V-036 Page 3 The information contained in this report was submitted pursuant to 49 CFR §573 Vehicle 4 : 2021-2021 Chevrolet Tahoe Vehicle Type : Body Style : Power Train : NR Descriptive Information : Manufacturing records and component trace data were used to determine vehicles that received suspect rear-wheel drive-shaft assemblies produced during the supplier’s suspect window. Vehicles equipped with assemblies produced outside of the suspect window, either during build or through subsequent repair, are not included in this recall. There are 909 Chevrolet Tahoe vehicles included in this recall. Production Dates : SEP 24, 2021 – OCT 04, 2021 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 5 : 2021-2021 GMC Yukon Vehicle Type : Body Style : Power Train : NR Descriptive Information : Manufacturing records and component trace data were used to determine vehicles that received suspect rear-wheel drive-shaft assemblies produced during the supplier’s suspect window. Vehicles equipped with assemblies produced outside of the suspect window, either during build or through subsequent repair, are not included in this recall. There are 283 GMC Yukon vehicles included in this recall. Production Dates : SEP 24, 2021 – OCT 04, 2021 VIN Range 1 : Begin : NR End : NR Not sequential Part 573 Safety Recall Report 22V-036 Page 4 The information contained in this report was submitted pursuant to 49 CFR §573 Vehicle 6 : 2021-2021 Chevrolet Suburban Vehicle Type : Body Style : Power Train : NR Descriptive Information : Manufacturing records and component trace data were used to determine vehicles that received suspect rear-wheel drive-shaft assemblies produced during the supplier’s suspect window. Vehicles equipped with assemblies produced outside of the suspect window, either during build or through subsequent repair, are not included in this recall. There are 209 Chevrolet Suburban vehicles included in this recall. Production Dates : SEP 24, 2021 – OCT 04, 2021 VIN Range 1 : Begin : NR End : NR Not sequential Description of Defect : Description of the Defect : General Motors has decided that a defect, which relates to motor vehicle safety, exists in certain 2021 model year Cadillac Escalade and Escalade ESV, Chevrolet Suburban and Tahoe, and GMC Yukon and Yukon XL vehicles. The rear-wheel drive-shaft assemblies in these vehicles may have been manufactured by GM’s supplier with recirculating balls that were not properly heat treated. The recirculating balls may deform over time, resulting in noise and vibration. With continued use, the affected joint in the drive-shaft assembly could seize and the vehicle could lose propulsion. FMVSS 1 : NR FMVSS 2 : NR Description of the Safety Risk : If the vehicle loses propulsion, there is increased risk of a crash. Description of the Cause : The condition was caused by malfunctioning equipment at GM’s tier-2 supplier. Identification of Any Warning that can Occur : Occupants will experience gradually increasing noise and vibration. Involved Components : Component Name 1 : SHAFT ASM-RR WHL DRV Component Description : Rear Wheel Drive Shaft Assembly Component Part Number : 84747323, 84747324 Part 573 Safety Recall Report 22V-036 Page 5 The information contained in this report was submitted pursuant to 49 CFR §573 Supplier Identification : Component Manufacturer Name : Tsubaki Nakashima Georgia (TNG) Address : 2200 Pendley Rd. Cumming Georgia 30041 Country : United States Chronology : On October 4, 2021, a supplier of rear-wheel drive-shaft assemblies informed GM that certain assemblies shipped to GM’s Arlington, Texas assembly plant may have been manufactured with internal steel recirculating balls that were not properly heat treated by a tier-2 supplier. A GM supplier quality engineer submitted a report through GM’s Speak Up for Safety process (SUFS) on October 5th. During October and November 2021, GM worked with the supplier to evaluate potential effects of the improper heat-treat condition on recirculating ball durability. GM also reviewed its manufacturing records and requested detailed production data from the supplier. In mid-November, the supplier informed GM that its testing indicated that there may be long-term durability concerns with the recirculating balls. GM’s engineers evaluated what effect, if any, these concerns may have on vehicle performance in GM’s applications. GM also continued to define the potentially affected vehicle population. GM opened a formal investigation on December 17 after determining that the suspect components may become deformed with long term use in GM’s vehicle applications. GM continued to evaluate whether the condition could also result in loss of propulsion with continued use. GM retrieved and reviewed warranty data, which did not identify any field reports relating to the condition. On January 20, 2022, GM’s Safety and Field Action Decision Authority decided to conduct a safety recall. Description of Remedy : Description of Remedy Program : Dealers will replace the left and/or right rear drive shaft assemblies. Pursuant to 49 C.F.R. § 573.13(d)(1), all covered vehicles are under warranty, so reimbursement is not offered. How Remedy Component Differs from Recalled Component : Replacement assemblies are produced outside of the supplier’s suspect window. Part 573 Safety Recall Report 22V-036 Page 6 The information contained in this report was submitted pursuant to 49 CFR §573 Identify How/When Recall Condition was Corrected in Production : The supplier’s equipment failure was corrected on June 4, 2021. Components produced after that time were properly heat treated. Vehicles produced after October 4, 2021 were equipped with drive shaft assemblies containing components that were produced outside of the suspect window. Recall Schedule : Description of Recall Schedule : Dealers will be notified on January 27, 2022. Owner notification of an available remedy is estimated to begin April 15, 2022. This recall will be conducted under three GM numbers: N212351030, N212351031, and N212351032. Planned Dealer Notification Date : JAN 27, 2022 – JAN 27, 2022 Planned Owner Notification Date : APR 15, 2022 – APR 15, 2022 * NR – Not Reported

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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 22V-036 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : General Motors, LLC Submission Date : JAN 27, 2022 NHTSA Recall No. : 22V-036 Manufacturer Recall No. : N212351030 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 : 1,789 Estimated percentage with defect : 100 % Vehicle Information : Vehicle 1 : 2021-2021 GMC Yukon XL Vehicle Type : Body Style : Power Train : NR Descriptive Information : Manufacturing records and component trace data were used to determine vehicles that received suspect rear-wheel drive-shaft assemblies produced during the supplier’s suspect window. Vehicles equipped with assemblies produced outside of the suspect window, either during build or through subsequent repair, are not included in this recall. There are 192 GMC Yukon XL vehicles included in this recall. Production Dates : SEP 24, 2021 – OCT 04, 2021 VIN Range 1 : Begin : NR End : NR Not sequential Part 573 Safety Recall Report 22V-036 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 Vehicle 2 : 2021-2021 Cadillac Escalade Vehicle Type : Body Style : Power Train : NR Descriptive Information : Manufacturing records and component trace data were used to determine vehicles that received suspect rear-wheel drive-shaft assemblies produced during the supplier’s suspect window. Vehicles equipped with assemblies produced outside of the suspect window, either during build or through subsequent repair, are not included in this recall. There are 106 Cadillac Escalade vehicles included in this recall. Production Dates : SEP 24, 2021 – OCT 04, 2021 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 3 : 2021-2021 Cadillac Escalade ESV Vehicle Type : Body Style : Power Train : NR Descriptive Information : Manufacturing records and component trace data were used to determine vehicles that received suspect rear-wheel drive-shaft assemblies produced during the supplier’s suspect window. Vehicles equipped with assemblies produced outside of the suspect window, either during build or through subsequent repair, are not included in this recall. There are 90 Cadillac Escalade ESV vehicles included in this recall. Production Dates : SEP 24, 2021 – OCT 04, 2021 VIN Range 1 : Begin : NR End : NR Not sequential Part 573 Safety Recall Report 22V-036 Page 3 The information contained in this report was submitted pursuant to 49 CFR §573 Vehicle 4 : 2021-2021 Chevrolet Suburban Vehicle Type : Body Style : Power Train : NR Descriptive Information : Manufacturing records and component trace data were used to determine vehicles that received suspect rear-wheel drive-shaft assemblies produced during the supplier’s suspect window. Vehicles equipped with assemblies produced outside of the suspect window, either during build or through subsequent repair, are not included in this recall. There are 209 Chevrolet Suburban vehicles included in this recall. Production Dates : SEP 24, 2021 – OCT 04, 2021 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 5 : 2021-2021 Chevrolet Tahoe Vehicle Type : Body Style : Power Train : NR Descriptive Information : Manufacturing records and component trace data were used to determine vehicles that received suspect rear-wheel drive-shaft assemblies produced during the supplier’s suspect window. Vehicles equipped with assemblies produced outside of the suspect window, either during build or through subsequent repair, are not included in this recall. There are 909 Chevrolet Tahoe vehicles included in this recall. Production Dates : SEP 24, 2021 – OCT 04, 2021 VIN Range 1 : Begin : NR End : NR Not sequential Part 573 Safety Recall Report 22V-036 Page 4 The information contained in this report was submitted pursuant to 49 CFR §573 Vehicle 6 : 2021-2021 GMC Yukon Vehicle Type : Body Style : Power Train : NR Descriptive Information : Manufacturing records and component trace data were used to determine vehicles that received suspect rear-wheel drive-shaft assemblies produced during the supplier’s suspect window. Vehicles equipped with assemblies produced outside of the suspect window, either during build or through subsequent repair, are not included in this recall. There are 283 GMC Yukon vehicles included in this recall. Production Dates : SEP 24, 2021 – OCT 04, 2021 VIN Range 1 : Begin : NR End : NR Not sequential Description of Defect : Description of the Defect : General Motors has decided that a defect, which relates to motor vehicle safety, exists in certain 2021 model year Cadillac Escalade and Escalade ESV, Chevrolet Suburban and Tahoe, and GMC Yukon and Yukon XL vehicles. The rear-wheel drive-shaft assemblies in these vehicles may have been manufactured by GM’s supplier with recirculating balls that were not properly heat treated. The recirculating balls may deform over time, resulting in noise and vibration. With continued use, the affected joint in the drive-shaft assembly could seize and the vehicle could lose propulsion. FMVSS 1 : NR FMVSS 2 : NR Description of the Safety Risk : If the vehicle loses propulsion, there is increased risk of a crash. Description of the Cause : The condition was caused by malfunctioning equipment at GM’s tier-2 supplier. Identification of Any Warning that can Occur : Occupants will experience gradually increasing noise and vibration. Involved Components : Component Name 1 : SHAFT ASM-RR WHL DRV Component Description : Rear Wheel Drive Shaft Assembly Component Part Number : 84747323, 84747324 Part 573 Safety Recall Report 22V-036 Page 5 The information contained in this report was submitted pursuant to 49 CFR §573 Supplier Identification : Component Manufacturer Name : Tsubaki Nakashima Georgia (TNG) Address : 2200 Pendley Rd. Cumming Georgia 30041 Country : United States Chronology : On October 4, 2021, a supplier of rear-wheel drive-shaft assemblies informed GM that certain assemblies shipped to GM’s Arlington, Texas assembly plant may have been manufactured with internal steel recirculating balls that were not properly heat treated by a tier-2 supplier. A GM supplier quality engineer submitted a report through GM’s Speak Up for Safety process (SUFS) on October 5th. During October and November 2021, GM worked with the supplier to evaluate potential effects of the improper heat-treat condition on recirculating ball durability. GM also reviewed its manufacturing records and requested detailed production data from the supplier. In mid-November, the supplier informed GM that its testing indicated that there may be long-term durability concerns with the recirculating balls. GM’s engineers evaluated what effect, if any, these concerns may have on vehicle performance in GM’s applications. GM also continued to define the potentially affected vehicle population. GM opened a formal investigation on December 17 after determining that the suspect components may become deformed with long term use in GM’s vehicle applications. GM continued to evaluate whether the condition could also result in loss of propulsion with continued use. GM retrieved and reviewed warranty data, which did not identify any field reports relating to the condition. On January 20, 2022, GM’s Safety and Field Action Decision Authority decided to conduct a safety recall. Description of Remedy : Description of Remedy Program : Dealers will replace the left and/or right rear drive shaft assemblies. Pursuant to 49 C.F.R. § 573.13(d)(1), all covered vehicles are under warranty, so reimbursement is not offered. How Remedy Component Differs from Recalled Component : Replacement assemblies are produced outside of the supplier’s suspect window. Part 573 Safety Recall Report 22V-036 Page 6 The information contained in this report was submitted pursuant to 49 CFR §573 Identify How/When Recall Condition was Corrected in Production : The supplier’s equipment failure was corrected on June 4, 2021. Components produced after that time were properly heat treated. Vehicles produced after October 4, 2021 were equipped with drive shaft assemblies containing components that were produced outside of the suspect window. Recall Schedule : Description of Recall Schedule : Dealers will be notified on January 27, 2022. Customer interim notification is estimated to begin March 14, 2022. GM will provide an estimated owner launch notification when available. This recall will be conducted under three GM numbers: N212351030, N212351031, and N212351032. Planned Dealer Notification Date : JAN 27, 2022 – JAN 27, 2022 Planned Owner Notification Date : MAR 14, 2022 – MAR 14, 2022 * NR – Not Reported

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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 22V-036 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : General Motors, LLC Submission Date : MAR 23, 2022 NHTSA Recall No. : 22V-036 Manufacturer Recall No. : N212351030 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 : 1,789 Estimated percentage with defect : 100 % Vehicle Information : Vehicle 1 : 2021-2021 Cadillac Escalade Vehicle Type : Body Style : Power Train : NR Descriptive Information : Manufacturing records and component trace data were used to determine vehicles that received suspect rear-wheel drive-shaft assemblies produced during the supplier’s suspect window. Vehicles equipped with assemblies produced outside of the suspect window, either during build or through subsequent repair, are not included in this recall. There are 106 Cadillac Escalade vehicles included in this recall. Production Dates : SEP 24, 2021 – OCT 04, 2021 VIN Range 1 : Begin : NR End : NR Not sequential Part 573 Safety Recall Report 22V-036 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 Vehicle 2 : 2021-2021 Cadillac Escalade ESV Vehicle Type : Body Style : Power Train : NR Descriptive Information : Manufacturing records and component trace data were used to determine vehicles that received suspect rear-wheel drive-shaft assemblies produced during the supplier’s suspect window. Vehicles equipped with assemblies produced outside of the suspect window, either during build or through subsequent repair, are not included in this recall. There are 90 Cadillac Escalade ESV vehicles included in this recall. Production Dates : SEP 24, 2021 – OCT 04, 2021 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 3 : 2021-2021 Chevrolet Suburban Vehicle Type : Body Style : Power Train : NR Descriptive Information : Manufacturing records and component trace data were used to determine vehicles that received suspect rear-wheel drive-shaft assemblies produced during the supplier’s suspect window. Vehicles equipped with assemblies produced outside of the suspect window, either during build or through subsequent repair, are not included in this recall. There are 209 Chevrolet Suburban vehicles included in this recall. Production Dates : SEP 24, 2021 – OCT 04, 2021 VIN Range 1 : Begin : NR End : NR Not sequential Part 573 Safety Recall Report 22V-036 Page 3 The information contained in this report was submitted pursuant to 49 CFR §573 Vehicle 4 : 2021-2021 Chevrolet Tahoe Vehicle Type : Body Style : Power Train : NR Descriptive Information : Manufacturing records and component trace data were used to determine vehicles that received suspect rear-wheel drive-shaft assemblies produced during the supplier’s suspect window. Vehicles equipped with assemblies produced outside of the suspect window, either during build or through subsequent repair, are not included in this recall. There are 909 Chevrolet Tahoe vehicles included in this recall. Production Dates : SEP 24, 2021 – OCT 04, 2021 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 5 : 2021-2021 GMC Yukon Vehicle Type : Body Style : Power Train : NR Descriptive Information : Manufacturing records and component trace data were used to determine vehicles that received suspect rear-wheel drive-shaft assemblies produced during the supplier’s suspect window. Vehicles equipped with assemblies produced outside of the suspect window, either during build or through subsequent repair, are not included in this recall. There are 283 GMC Yukon vehicles included in this recall. Production Dates : SEP 24, 2021 – OCT 04, 2021 VIN Range 1 : Begin : NR End : NR Not sequential Part 573 Safety Recall Report 22V-036 Page 4 The information contained in this report was submitted pursuant to 49 CFR §573 Vehicle 6 : 2021-2021 GMC Yukon XL Vehicle Type : Body Style : Power Train : NR Descriptive Information : Manufacturing records and component trace data were used to determine vehicles that received suspect rear-wheel drive-shaft assemblies produced during the supplier’s suspect window. Vehicles equipped with assemblies produced outside of the suspect window, either during build or through subsequent repair, are not included in this recall. There are 192 GMC Yukon XL vehicles included in this recall. Production Dates : SEP 24, 2021 – OCT 04, 2021 VIN Range 1 : Begin : NR End : NR Not sequential Description of Defect : Description of the Defect : General Motors has decided that a defect, which relates to motor vehicle safety, exists in certain 2021 model year Cadillac Escalade and Escalade ESV, Chevrolet Suburban and Tahoe, and GMC Yukon and Yukon XL vehicles. The rear-wheel drive-shaft assemblies in these vehicles may have been manufactured by GM’s supplier with recirculating balls that were not properly heat treated. The recirculating balls may deform over time, resulting in noise and vibration. With continued use, the affected joint in the drive-shaft assembly could seize and the vehicle could lose propulsion. FMVSS 1 : NR FMVSS 2 : NR Description of the Safety Risk : If the vehicle loses propulsion, there is increased risk of a crash. Description of the Cause : The condition was caused by malfunctioning equipment at GM’s tier-2 supplier. Identification of Any Warning that can Occur : Occupants will experience gradually increasing noise and vibration. Involved Components : Component Name 1 : SHAFT ASM-RR WHL DRV Component Description : Rear Wheel Drive Shaft Assembly Component Part Number : 84747323, 84747324 Part 573 Safety Recall Report 22V-036 Page 5 The information contained in this report was submitted pursuant to 49 CFR §573 Supplier Identification : Component Manufacturer Name : NTN Bearing Corporation of America Address : 39255 West 12 Mile Road Farmington Hills Michigan 48331 Country : United States Chronology : On October 4, 2021, a supplier of rear-wheel drive-shaft assemblies informed GM that certain assemblies shipped to GM’s Arlington, Texas assembly plant may have been manufactured with internal steel recirculating balls that were not properly heat treated by a tier-2 supplier. A GM supplier quality engineer submitted a report through GM’s Speak Up for Safety process (SUFS) on October 5th. During October and November 2021, GM worked with the supplier to evaluate potential effects of the improper heat-treat condition on recirculating ball durability. GM also reviewed its manufacturing records and requested detailed production data from the supplier. In mid-November, the supplier informed GM that its testing indicated that there may be long-term durability concerns with the recirculating balls. GM’s engineers evaluated what effect, if any, these concerns may have on vehicle performance in GM’s applications. GM also continued to define the potentially affected vehicle population. GM opened a formal investigation on December 17 after determining that the suspect components may become deformed with long term use in GM’s vehicle applications. GM continued to evaluate whether the condition could also result in loss of propulsion with continued use. GM retrieved and reviewed warranty data, which did not identify any field reports relating to the condition. On January 20, 2022, GM’s Safety and Field Action Decision Authority decided to conduct a safety recall. Description of Remedy : Description of Remedy Program : Dealers will replace the left and/or right rear drive shaft assemblies. Pursuant to 49 C.F.R. § 573.13(d)(1), all covered vehicles are under warranty, so reimbursement is not offered. How Remedy Component Differs from Recalled Component : Replacement assemblies are produced outside of the supplier’s suspect window. Part 573 Safety Recall Report 22V-036 Page 6 The information contained in this report was submitted pursuant to 49 CFR §573 Identify How/When Recall Condition was Corrected in Production : The supplier’s equipment failure was corrected on June 4, 2021. Components produced after that time were properly heat treated. Vehicles produced after October 4, 2021 were equipped with drive shaft assemblies containing components that were produced outside of the suspect window. Recall Schedule : Description of Recall Schedule : Dealers will be notified on January 27, 2022. Owner notification of an available remedy is estimated to begin April 15, 2022. This recall will be conducted under three GM numbers: N212351030, N212351031, and N212351032. Planned Dealer Notification Date : JAN 27, 2022 – JAN 27, 2022 Planned Owner Notification Date : APR 15, 2022 – APR 15, 2022 * NR – Not Reported

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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 22V-036 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : General Motors, LLC Submission Date : FEB 03, 2022 NHTSA Recall No. : 22V-036 Manufacturer Recall No. : N212351030 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 : 1,789 Estimated percentage with defect : 100 % Vehicle Information : Vehicle 1 : 2021-2021 Cadillac Escalade Vehicle Type : Body Style : Power Train : NR Descriptive Information : Manufacturing records and component trace data were used to determine vehicles that received suspect rear-wheel drive-shaft assemblies produced during the supplier’s suspect window. Vehicles equipped with assemblies produced outside of the suspect window, either during build or through subsequent repair, are not included in this recall. There are 106 Cadillac Escalade vehicles included in this recall. Production Dates : SEP 24, 2021 – OCT 04, 2021 VIN Range 1 : Begin : NR End : NR Not sequential Part 573 Safety Recall Report 22V-036 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 Vehicle 2 : 2021-2021 Cadillac Escalade ESV Vehicle Type : Body Style : Power Train : NR Descriptive Information : Manufacturing records and component trace data were used to determine vehicles that received suspect rear-wheel drive-shaft assemblies produced during the supplier’s suspect window. Vehicles equipped with assemblies produced outside of the suspect window, either during build or through subsequent repair, are not included in this recall. There are 90 Cadillac Escalade ESV vehicles included in this recall. Production Dates : SEP 24, 2021 – OCT 04, 2021 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 3 : 2021-2021 GMC Yukon XL Vehicle Type : Body Style : Power Train : NR Descriptive Information : Manufacturing records and component trace data were used to determine vehicles that received suspect rear-wheel drive-shaft assemblies produced during the supplier’s suspect window. Vehicles equipped with assemblies produced outside of the suspect window, either during build or through subsequent repair, are not included in this recall. There are 192 GMC Yukon XL vehicles included in this recall. Production Dates : SEP 24, 2021 – OCT 04, 2021 VIN Range 1 : Begin : NR End : NR Not sequential Part 573 Safety Recall Report 22V-036 Page 3 The information contained in this report was submitted pursuant to 49 CFR §573 Vehicle 4 : 2021-2021 Chevrolet Tahoe Vehicle Type : Body Style : Power Train : NR Descriptive Information : Manufacturing records and component trace data were used to determine vehicles that received suspect rear-wheel drive-shaft assemblies produced during the supplier’s suspect window. Vehicles equipped with assemblies produced outside of the suspect window, either during build or through subsequent repair, are not included in this recall. There are 909 Chevrolet Tahoe vehicles included in this recall. Production Dates : SEP 24, 2021 – OCT 04, 2021 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 5 : 2021-2021 GMC Yukon Vehicle Type : Body Style : Power Train : NR Descriptive Information : Manufacturing records and component trace data were used to determine vehicles that received suspect rear-wheel drive-shaft assemblies produced during the supplier’s suspect window. Vehicles equipped with assemblies produced outside of the suspect window, either during build or through subsequent repair, are not included in this recall. There are 283 GMC Yukon vehicles included in this recall. Production Dates : SEP 24, 2021 – OCT 04, 2021 VIN Range 1 : Begin : NR End : NR Not sequential Part 573 Safety Recall Report 22V-036 Page 4 The information contained in this report was submitted pursuant to 49 CFR §573 Vehicle 6 : 2021-2021 Chevrolet Suburban Vehicle Type : Body Style : Power Train : NR Descriptive Information : Manufacturing records and component trace data were used to determine vehicles that received suspect rear-wheel drive-shaft assemblies produced during the supplier’s suspect window. Vehicles equipped with assemblies produced outside of the suspect window, either during build or through subsequent repair, are not included in this recall. There are 209 Chevrolet Suburban vehicles included in this recall. Production Dates : SEP 24, 2021 – OCT 04, 2021 VIN Range 1 : Begin : NR End : NR Not sequential Description of Defect : Description of the Defect : General Motors has decided that a defect, which relates to motor vehicle safety, exists in certain 2021 model year Cadillac Escalade and Escalade ESV, Chevrolet Suburban and Tahoe, and GMC Yukon and Yukon XL vehicles. The rear-wheel drive-shaft assemblies in these vehicles may have been manufactured by GM’s supplier with recirculating balls that were not properly heat treated. The recirculating balls may deform over time, resulting in noise and vibration. With continued use, the affected joint in the drive-shaft assembly could seize and the vehicle could lose propulsion. FMVSS 1 : NR FMVSS 2 : NR Description of the Safety Risk : If the vehicle loses propulsion, there is increased risk of a crash. Description of the Cause : The condition was caused by malfunctioning equipment at GM’s tier-2 supplier. Identification of Any Warning that can Occur : Occupants will experience gradually increasing noise and vibration. Involved Components : Component Name 1 : SHAFT ASM-RR WHL DRV Component Description : Rear Wheel Drive Shaft Assembly Component Part Number : 84747323, 84747324 Part 573 Safety Recall Report 22V-036 Page 5 The information contained in this report was submitted pursuant to 49 CFR §573 Supplier Identification : Component Manufacturer Name : Tsubaki Nakashima Georgia (TNG) Address : 2200 Pendley Rd. Cumming Georgia 30041 Country : United States Chronology : On October 4, 2021, a supplier of rear-wheel drive-shaft assemblies informed GM that certain assemblies shipped to GM’s Arlington, Texas assembly plant may have been manufactured with internal steel recirculating balls that were not properly heat treated by a tier-2 supplier. A GM supplier quality engineer submitted a report through GM’s Speak Up for Safety process (SUFS) on October 5th. During October and November 2021, GM worked with the supplier to evaluate potential effects of the improper heat-treat condition on recirculating ball durability. GM also reviewed its manufacturing records and requested detailed production data from the supplier. In mid-November, the supplier informed GM that its testing indicated that there may be long-term durability concerns with the recirculating balls. GM’s engineers evaluated what effect, if any, these concerns may have on vehicle performance in GM’s applications. GM also continued to define the potentially affected vehicle population. GM opened a formal investigation on December 17 after determining that the suspect components may become deformed with long term use in GM’s vehicle applications. GM continued to evaluate whether the condition could also result in loss of propulsion with continued use. GM retrieved and reviewed warranty data, which did not identify any field reports relating to the condition. On January 20, 2022, GM’s Safety and Field Action Decision Authority decided to conduct a safety recall. Description of Remedy : Description of Remedy Program : Dealers will replace the left and/or right rear drive shaft assemblies. Pursuant to 49 C.F.R. § 573.13(d)(1), all covered vehicles are under warranty, so reimbursement is not offered. How Remedy Component Differs from Recalled Component : Replacement assemblies are produced outside of the supplier’s suspect window. Part 573 Safety Recall Report 22V-036 Page 6 The information contained in this report was submitted pursuant to 49 CFR §573 Identify How/When Recall Condition was Corrected in Production : The supplier’s equipment failure was corrected on June 4, 2021. Components produced after that time were properly heat treated. Vehicles produced after October 4, 2021 were equipped with drive shaft assemblies containing components that were produced outside of the suspect window. Recall Schedule : Description of Recall Schedule : Dealers will be notified on January 27, 2022. Owner notification of an available remedy is estimated to begin April 15, 2022. This recall will be conducted under three GM numbers: N212351030, N212351031, and N212351032. Planned Dealer Notification Date : JAN 27, 2022 – JAN 27, 2022 Planned Owner Notification Date : APR 15, 2022 – APR 15, 2022 * NR – Not Reported

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