Safety Recall N212346510 Mismatched Spare Tire – 2019-2021 Chevrolet Silverado & GMC Sierra 1500

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Product Safety Recall N212346510 Mismatched Spare Tire Copyright 2022 General Motors. All Rights Reserved. Page 1 of 21 Release Date: February 2022 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 December 16, 2021. 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 Chevrolet Silverado 1500 (New Model) 2019 2019 RHM, QBR, or XCQ Tire Spare-LT265/70R17 C 112Q BW AT, Tire Spare-255/70R17 SL 112S BW ALS VAR1, or Tire Spare-255/70R17 SL 112S BW ALS VAR1 Silverado 1500 2020 2021 GMC Sierra 1500 (New Model) 2019 2019 Sierra 1500 2020 2021 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, certain 2019 – 2021 model year Chevrolet Silverado 1500 and GMC Sierra 1500 vehicles equipped with a 17” spare tire (RPO RHM, QBR, or XCQ) and also equipped with (i) 22” accessory road tires (RPO XD5 or XAH), (ii) 20” accessory road tires (RPO XDF) or (iii) 18” accessory road tires (RPO RCP), in new or used vehicle inventory. If the original 17” spare tire is installed on the vehicle opposite one of the listed accessory tires, the anti-lock braking system (ABS) may not independently control the rear wheels on low-friction surfaces. If installed on opposing rear wheels in the subject vehicles, the difference in revolutions per kilometer (RPK) between (a) the original spare tire and (b) 22”, 20”, or 18” accessory road tires can interfere with the operation of the vehicle’s ABS system. If the ABS system cannot control the rear wheels independently on low-friction surfaces, there is an increased risk of a crash. Correction Dealers will provide a 17” spare tire and wheel assembly with compatible RPK rating to owners confirmed to have the 22”, 20”, or 18” accessory road tires. Dealers will also apply a new spare tire information label over the existing tire placard label. Owners will also be provided an Owner’s Manual insert clarifying which spare tire that should be used with the 22”, 20” and 18” accessory road tires and the spare tire to be used with the 17” original tires. Parts Quantity Part Name Part No. 1 Wheel 84440192 1 Maxxis Spare Tire 255/80R17 (This Tire is Not Ordered From CCA, See Special Ordering Instructions Below the Parts Table) 23376705* 1 Stem Asm – Tire Valve 9593595 1 Spare Tire Overlay Label for Tire Placard 212346510** 2 Strap, Spa Whl Stow 84275188 * Maxxis Tire Ordering: US Dealers: Dealers must order replacement spare tire directly from Maxxis using the link below. Enter discount code GMT1X when placing order. https://shop.maxxis.com/products/compact-spare-tire Maxxis Spare Tire – 255/80R17 (TP50813000). Contact Maxxis direct at 800-463-9941. If you have concerns acquiring replacement tires, please call the GM Tire Program at 1-877-728-4737. Product Safety Recall N212346510 Mismatched Spare Tire Page 2 of 21 Canada Dealers: Dealers must order replacement spare tire directly from Maxxis using the link below. Enter discount code GMT1X when placing order. https://shop.maxxiscanada.com/collections/compact-spare/products/ht-750t-spare Maxxis Spare Tire – 255/80R17 (TP50813000). Contact Maxxis direct at (416) 577-3142. ** US Dealers: The spare tire label overlays will be mailed directly to the customers. If required, additional labels required to complete this recall are to be ordered online, through the GM 1Store via GlobalConnect. Please log in and order the label using item number 212346510 or the bulletin number N212346510. The label will be provided at no charge. If a VIN is not involved with this recall, a label will not be available or provided. Canada Dealers: Please contact the Warranty Call Centre at 1-888-222-5546 to order replacement labels. Dealers will be required to provide a VIN at the time of ordering. If a VIN is not involved with this recall, a label will not be available or provided. Labels will be provided at no charge. 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 9105892 Replace Spare Wheel and Tire Assembly, Install Label Overlay and Secure Alternate Spare Tire in Cargo Bed (Use with Case #1) 0.9 ZFAT * 9106160 Secure the New Service 17” Spare Tire and Wheel Assembly in Cargo Bed, Leave the Original 17” Spare Tire and Wheel Assembly in the Spare Tire Carrier, Provide Customer with Label Overlay (Use with Case #2 and 3) 0.8 ZFAT * 9106161 Floor Plan Reimbursement – NEW INVENTORY ONLY N/A ZFAT ** 9106162 Working Capital Assistance Program Reimbursement – USED INVENTORY ONLY N/A ZFAT *** Note: To avoid having to “H” route the Floor Plan / WCAP transaction for approval, it must be submitted prior to the repair transaction. * The amount identified in “Net Item” should represent the actual sum total of the current GMCC&A Dealer net price for the Maxis Spare Tire 255/80R17 needed to perform the required repairs, not to exceed $210.60 USD, $283.14 CAD. 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 (December 16, 2021) to the date the repair is completed, and the vehicle is ready for sale (not to exceed 56 days): Vehicle Floor Plan Reimbursement Amount USA Canada 2021 Chevrolet Silverado 1500 $5.73 N/A 2021 GMC Sierra 1500 $6.61 N/A Product Safety Recall N212346510 Mismatched Spare Tire Page 3 of 21 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, 9800084, provided in the dealer message sent on January 5, 2022 (USA) or January 4, 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 (December 16, 2021) to the date the inspection or repair closed the recall bulletin. (not to exceed 56 days). Vehicle Working Capital Assistance Reimbursement Amount USA Canada 2019 Chevrolet Silverado 1500 (New Model) $21.25 $24.77 2019 GMC Sierra 1500 (New Model) $21.38 $27.06 2020 Chevrolet Silverado 1500 $21.92 $26.27 2020 GMC Sierra 1500 $22.92 $28.44 2021 Chevrolet Silverado 1500 $24.00 $30.08 2021 GMC Sierra 1500 $25.00 $32.54 Owner Refusal of Repair Documentation Condition Case # 1, 2 or 3 Repairs performed in full, use the above labor operation information to CLOSE the Field Action. If the customer for some reason declines the New Service 17” Spare Tire and Wheel Assembly (in case 1 below), the CAMO form should be completed. Use the above labor operation information to CLOSE the Field Action If the customer for some reason declines the New Service 17” Spare Tire and Wheel Assembly (in any of the cases below), then the CAMO form should be completed, and the Field Action should remain OPEN USA Dealers Only: If the customer declines having the repair performed in full, use the N212346510 Field Action Vehicle Service Action Refusal Form at the end of this document. Dealers can also access a copy of this form in GlobalConnect under Service Forms at https://dealer.autopartners.net/sites/usserviceforms, titled “Field Action Status Change Form Specific to Safety Recall N212346510 (Customer Refusal)”. Product Safety Recall N212346510 Mismatched Spare Tire Page 4 of 21 Service Procedure 5968959 Product Safety Recall N212346510 Mismatched Spare Tire Page 5 of 21 5968961 5968963 Product Safety Recall N212346510 Mismatched Spare Tire Page 6 of 21 5968964 5968967 Product Safety Recall N212346510 Mismatched Spare Tire Page 7 of 21 5968970 5968972 Product Safety Recall N212346510 Mismatched Spare Tire Page 8 of 21 5968975 5968978 Product Safety Recall N212346510 Mismatched Spare Tire Page 9 of 21 5968980 Wheel Size Tire Brand Tire Model Tire Description Tire TPC# 18” GOODYEAR Wrangler Duratrac MT LT275/65R18 C 110/113Q BW MT 2803 20” Bridgestone Dueler A/T 275/60R20 SL 115S BW AT 2369 22” Bridgestone Dueler A/T P285/45R22 110H 2349 22” Bridgestone Alenza A/S 275/50R22 SL 111T BW AL2 3112MS Tire Sidewall Information Inspect the four road tires installed on the vehicle: Case #1 Inspection and Actions: 1. Customer had purchased OEM Accessory 18”, 20”, or 22” tires, and those tires are currently installed on the vehicle. See the photograph images and table information above to identify these tires by locating and inspecting the TPC number on the sidewalls of the tires. TPC numbers are 2349 for the OEM 22” P285/45R22 accessory road tires, 3112MS for the OEM 22” 275/50R22 accessory road tires, 2369 for the OEM 20” accessory road tires and 2803 for the OEM 18” accessory road tires. 2. Is the vehicle equipped with OEM spare tire combination as follows? a. For the 18” OEM accessory road tires: General Grabber HTS – 255/70R17 ALS spare tire? b. For the 20” OEM accessory road tires: Bridgestone Dueler A/T RH-S – LT265/70R17C 112Q BW AT spare tire, General Grabber HTS – 255/70R17 SL 112S BW ALS or Maxxis – 265/70R17 SL 115S BW SPR spare tire? c. For the 22” OEM Accessory 275/50R22 road tires: Bridgestone Dueler A/T RH-S – LT265/70R17C 112Q BW AT spare tire, General Grabber HTS – 255/70R17 SL 112S BW ALS or Maxxis – 265/70R17 SL 115S BW SPR spare tire? d. For the 22” OEM Accessory P285/45R22 road tires: General Grabber HTS – 255/70R17 SL 112S BW ALS spare tire? Product Safety Recall N212346510 Mismatched Spare Tire Page 10 of 21 3. If yes, replace the existing spare tire and wheel assembly that is in the spare wheel and tire carried under the truck with a new service Maxxis – 255/80R17 SL 115S BW SPR 17” spare tire and wheel assembly. 4. Place the original 17” spare tire and wheel assembly that the vehicle was built with in the cargo bed of the truck and restrain it with two straps. The customer needs to re-install this original 17” spare tire and wheel assembly in the vehicle the spare wheel and tire carried under the truck whenever they transition back to the OEM 17” production road tires. 5. Install the spare tire overlay label for the newly installed Maxxis – 255/80R17 SL 115S BW SPR 17” spare tire and wheel assembly on top of the existing tire placard label. See the instructions for installing the spare tire overlay label. Case #2 Inspection and Actions: Wheels Size Tire Brand Tire Model Tire Description Tire TPC# 17” General Grabber HTS 255/70R17 SL 112S BW ALS 1499MS 17” Bridgestone Dueler A/T RH-S 265/70R17 SL 115S BW AT 2366 17” Bridgestone Dueler A/T RH-S LT265/70R17 C 112Q BW AT 2367 18” Michelin Primacy LTX 265/65R18 SL 114T BW ALS 1500MS 18” Goodyear Fortitude HT 265/65R18 SL 114T BW AT 2363 18” Goodyear Fortitude HT 265/65R18 SL 114T WOL AT 2363 18” Goodyear Wrangler Duratrac MT LT275/65R18 C 110/113Q BW MT 2803 Tire Sidewall Information 1. Customer had purchased OEM Accessory 18”, 20”, or 22” tires, and but the original equipment 17” or 18” tires are currently installed on the vehicle? See the photograph images and table information above to identify these tires by locating and inspecting the TPC number on the sidewalls of the tires. TPC numbers are shown in chart above. 2. If yes, do not replace the existing 17” spare tire and wheel assembly that is in the spare wheel and tire carried under the vehicle with a new service 17” spare tire and wheel assembly. 3. Place the new service Maxxis – 255/80R17 SL 115S BW SPR spare tire and wheel assembly in the cargo bed of the truck and restrain it with two straps. The customer needs to install the 17” spare tire and wheel assembly in the vehicle spare wheel and tire carried under the truck when or if they transition back to the OEM 18”, 20” or 22” accessory road tires they purchased. 4. Provide the customer a 17” spare tire overlay label that they can install over the existing tire placard label if they ever transition back to the OEM 22”, 20” or 18” accessory road tires they purchased. Case #3 Inspection and Actions: 1. Customer had purchased OEM Accessory 18”, 20”, or 22” tires, and but neither the Accessory tires, nor the original equipment tires are currently installed on the vehicle. If the vehicle does not have the road tires described in Cases #1 or #2 above, do the following: 2. Do not replace the existing 17” spare tire and wheel assembly that is in the spare wheel and tire carried under the truck, leave it in the spare wheel and tire carried under the truck. 3. Place the new service Maxxis – 255/80R17 SL 115S BW SPR spare tire and wheel assembly in the cargo bed of the truck and restrain it with two straps. The customer needs to install the new service Maxxis – 255/80R17 SL 115S BW SPR spare tire and wheel assembly in the vehicle the spare wheel and tire carried under the truck when or if they transition to the OEM 22”, 20” or 18” accessory road tires they purchased. 4. Provide the customer a 17” spare tire overlay label that they can install over the existing tire placard label if they ever transition back to the OEM 22”, 20” or 18” accessory road tires they purchased. • For removal and reinstallation of the spare tire and wheel assembly from the vehicle, Refer to Tire Changing in the Owner Manual. • Mount the new service tire onto the new service spare wheel and balance the assembly. Refer to Tire Dismounting and Mounting in SI. Product Safety Recall N212346510 Mismatched Spare Tire Page 11 of 21 Label Overlay Installation 1. Locate the Tire and Loading Information label in the driver door opening. 5908675 NOTE: Example label shown, actual information may vary by vehicle. 2. Identify the spare tire information section. 3. Clean the information label using 50% isopropyl alcohol and dry with a clean, lint free cloth. Receiving surface MUST be clean, dry, and free of any contaminants. The surface temperature should not be less than 65o F (21o C). 4. Firmly hold the new label and peel protective liner from the back side, being careful not to touch or contaminate the adhesive with dirt or foreign matter. 5. Ensure the new label is properly positioned before allowing contact with the original label surface. The adhesive used is very aggressive and will not allow repositioning once the new label is applied. Install the new spare tire information label over the existing spare tire section of the Tire and Loading Information label using the black centerline for reference. Press firmly and smooth out entire label ensuring corners are fully adhered. Securing Spare Tire and Wheel Assembly in The Cargo Bed IMPORTANT: Inform the customer that the spare tire mounted in the cargo bed is only for transporting the tire home. It must be removed immediately upon arrival. 5908677 Product Safety Recall N212346510 Mismatched Spare Tire Page 12 of 21 5908678 5908680 • Fit strap through the bottom right rear tie down ring. 5908683 • Feed the strap under the bottom of the spare tire and wheel assembly, through the wheel and latch the strap as shown. Product Safety Recall N212346510 Mismatched Spare Tire Page 13 of 21 5908684 • Repeat the above two steps on the other side of the vehicle. 5908686 • Tighten both strap buckles to secure the spare tire and wheel assembly. 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 Product Safety Recall N212346510 Mismatched Spare Tire Page 14 of 21 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). 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 N212346510 Mismatched Spare Tire Page 15 of 21 Safety Field Action Vehicle Service Action Refusal Form – English 5982579 Product Safety Recall N212346510 Mismatched Spare Tire Page 16 of 21 Safety Field Action Vehicle Service Action Refusal Form – French 5981364 Product Safety Recall N212346510 Mismatched Spare Tire Page 17 of 21 5981368 Product Safety Recall N212346510 Mismatched Spare Tire Page 18 of 21 Silverado/Sierra Correct Spare Tire/Wheel Owner’s Manual insert – English Silverado/Sierra LD Correct Spare Tire/Wheel use with Road Tires/Wheels Ensure the correct GM spare tire/wheel assembly is used in conjunction with the accompanying GM road tire/wheel assemblies: With these GM road tire/wheel assemblies Use this GM spare tire/wheel assembly Tire Description Tire Part# Wheel Size Tire Description Tire Part# Wheel Size Goodyear Wrangler Duratrac MT LT275/65R18 23376692 18” x 8.5” Maxxis HT-750: 265/70R17 23376706 17” x 8.0” Bridgestone Dueler A/T RH-S: LT265/70R17 23376686 Maxxis HT-750: 255/80R17 23376705 Bridgestone Dueler AT 275/60R20 23376694 20” x 9.0” Maxxis HT-750: 255/80R17 23376705 17” x 8.0” Bridgestone Alenza A/S 275/50R22 23376704 22” x 9.0” Maxxis HT-750: 255/80R17 23376705 17” x 8.0” Bridgestone Dueler AT P285/45R22 19190768 22” x 9.0” Maxxis HT-750: 265/70R17 23376706 17” x 8.0” Bridgestone Dueler A/T RH-S: LT265/70R17 23376686 Maxxis HT-750: 255/80R17 23376705 This chart is only applicable to GM OE tires and wheels Reference N21-2346510 Product Safety Recall N212346510 Mismatched Spare Tire Page 19 of 21 Silverado/Sierra Correct Spare Tire/Wheel Owner’s Manual insert – French Utilisation du bon ensemble de roue et pneu de secours avec les roues et pneus de route pour véhicules Silverado/Sierra à poids léger Assurez-vous que le bon ensemble de roue et pneu de secours GM est utilisé avec les ensembles de roue et pneu de route GM correspondants ci-dessous : Avec ces ensembles de roue et pneu de route GM Utilisez cet ensemble de roue et pneu de secours GM Description du pneu No de pièce du pneu Dimension des roues Description du pneu No de pièce du pneu Dimension des roues Goodyear Wrangler Duratrac MT LT275/65R18 23376692 18 x 8,5 po Maxxis HT-750 : 265/70R17 23376706 17 x 8,0 po Bridgestone Dueler A/T RH-S : LT265/70R17 23376686 Maxxis HT-750 : 255/80R17 23376705 Bridgestone Dueler AT 275/60R20 23376694 20 x 9,0 po Maxxis HT-750 : 255/80R17 23376705 17 x 8,0 po Bridgestone Alenza A/S 275/50R22 23376704 22 x 9,0 po Maxxis HT-750 : 255/80R17 23376705 17 x 8,0 po Bridgestone Dueler AT P285/45R22 19190768 22 x 9,0 po Maxxis HT-750 : 265/70R17 23376706 17 x 8,0 po Bridgestone Dueler A/T RH-S : LT265/70R17 23376686 Maxxis HT-750 : 255/80R17 23376705 Ce tableau s’applique uniquement aux pneus et aux roues GM d’origine. Référence : N21-2346510 Product Safety Recall N212346510 Mismatched Spare Tire Page 20 of 21 IMPORTANT SAFETY RECALL February 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 2019 – 2021 model year Chevrolet Silverado 1500 and GMC Sierra 1500 vehicles equipped with a 17” spare tire (RPO RHM, QBR, or XCQ) and also equipped with (i) 22” accessory road tires (RPO XD5 or XAH), (ii) 20” accessory road tires (RPO XDF) or (iii) 18” accessory road tires (RPO RCP), in new or used vehicle inventory. 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 N212346510. • Schedule an appointment with your GM dealer. • This service will be performed for you at no charge. Why is your vehicle being recalled? If the original 17” spare tire is installed on the vehicle opposite one of the listed accessory tires, the anti-lock braking system (ABS) may not independently control the rear wheels on low-friction surfaces. If installed on opposing rear wheels in the subject vehicles, the difference in revolutions per kilometer (RPK) between (a) the original spare tire and (b) 22”, 20”, or 18” accessory road tires can interfere with the operation of the vehicle’s ABS system. If the ABS system cannot control the rear wheels independently on low-friction surfaces, there is an increased risk of a crash. What will we do? Your GM dealer will provide a 17” spare tire and wheel assembly with compatible RPK rating to owners confirmed to have the 22”, 20”, or 18” accessory road tires. Dealers will also apply a new spare tire information label over the existing tire placard label. Owners will also be provided an Owner’s Manual insert clarifying which spare tire that should be used with the 22”, 20” and 18” accessory road tires and the spare tire to be used with the 17” original tires. This service will be performed for you free of 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 one hour. What should you do? You should contact your GM dealer to arrange a service appointment as soon as possible. Keep this letter and the enclosed “Silverado/Sierra Correct Spare Tire/Wheel use with Road Tires/Wheels” information supplement with your other important glove box literature for future reference. 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 Product Safety Recall N212346510 Mismatched Spare Tire Page 21 of 21 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 21V985. 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: N212346510

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IMPORTANT SAFETY RECALL February 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 2019 – 2021 model year Chevrolet Silverado 1500 and GMC Sierra 1500 vehicles equipped with a 17” spare tire (RPO RHM, QBR, or XCQ) and also equipped with (i) 22” accessory road tires (RPO XD5 or XAH), (ii) 20” accessory road tires (RPO XDF) or (iii) 18” accessory road tires (RPO RCP), in new or used vehicle inventory. 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 N212346510. • Schedule an appointment with your GM dealer. • This service will be performed for you at no charge. Why is your vehicle being recalled? If the original 17” spare tire is installed on the vehicle opposite one of the listed accessory tires, the anti-lock braking system (ABS) may not independently control the rear wheels on low-friction surfaces. If installed on opposing rear wheels in the subject vehicles, the difference in revolutions per kilometer (RPK) between (a) the original spare tire and (b) 22”, 20”, or 18” accessory road tires can interfere with the operation of the vehicle’s ABS system. If the ABS system cannot control the rear wheels independently on low-friction surfaces, there is an increased risk of a crash. What will we do? Your GM dealer will provide a 17” spare tire and wheel assembly with compatible RPK rating to owners confirmed to have the 22”, 20”, or 18” accessory road tires. Dealers will also apply a new spare tire information label over the existing tire placard label. Owners will also be provided an Owner’s Manual insert clarifying which spare tire that should be used with the 22”, 20” and 18” accessory road tires and the spare tire to be used with the 17” original tires. This service will be performed for you free of 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 one hour. What should you do? You should contact your GM dealer to arrange a service appointment as soon as possible. Keep this letter and the enclosed “Silverado/Sierra Correct Spare Tire/Wheel use with Road Tires/Wheels” information supplement with your other important glove box literature for future reference. 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 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 21V985. 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: N212346510 Silverado/Sierra LD Correct Spare Tire/Wheel use with Road Tires/Wheels Ensure the correct GM spare tire/wheel assembly is used in conjunction with the accompanying GM road tire/wheel assemblies: With these GM road tire/wheel assemblies Use this GM spare tire/wheel assembly Tire Description Tire Part# Wheel Size Tire Description Tire Part# Wheel Size Goodyear Wrangler Duratrac MT LT275/65R18 23376692 18” x 8.5” Maxxis HT-750: 265/70R17 23376706 17” x 8.0” Bridgestone Dueler A/T RH-S: LT265/70R17 23376686 Maxxis HT-750: 255/80R17 23376705 Bridgestone Dueler AT 275/60R20 23376694 20” x 9.0” Maxxis HT-750: 255/80R17 23376705 17” x 8.0” Bridgestone Alenza A/S 275/50R22 23376704 22” x 9.0” Maxxis HT-750: 255/80R17 23376705 17” x 8.0” Bridgestone Dueler AT P285/45R22 19190768 22” x 9.0” Maxxis HT-750: 265/70R17 23376706 17” x 8.0” Bridgestone Dueler A/T RH-S: LT265/70R17 23376686 Maxxis HT-750: 255/80R17 23376705 This chart is only applicable to GM OE tires and wheels Reference N21-2346510

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GLOBAL SAFETY FIELD INVESTIGATIONS DCS6048 URGENT – DISTRIBUTE IMMEDIATELY Date: February 7, 2022 Subject: N212346510 – Safety Recall Mismatched Spare Tire Models: 2019 – Chevrolet Silverado 1500 (New Model) 2020 – 2021 Chevrolet Silverado 1500 2019 – GMC Sierra 1500 (New Model) 2019 – 2201 GMC Sierra 1500 To: All General Motors Dealers General Motors is releasing Safety Recall N212346510 today. The total number of U.S. vehicles involved is approximately 621. Please see the attached bulletin for details. Vehicles involved in this recall were placed on stop delivery December 16, 2021. 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 an updated 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. Customer Letter Mailing The customer letter mailing will begin on February 8, 2022. Global Warranty Management (GWM) The Required Field Action section on the Investigate Vehicle History (IVH) screen will be updated February 8, 2022 or sooner. 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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GM CUSTOMER CARE AND AFTERSALES DCS6022 URGENT – DISTRIBUTE IMMEDIATELY Date: January 05, 2022 Subject: N212346510 – Safety Recall Mismatched Spare Tire Application for Used Vehicle Working Capital Assistance Program (WCAP) Models: 2019 – 2021 Chevrolet Silverado 1500 2019 – 2021 GMC Sierra 1500 To: All General Motors Dealers On December 16, 2021, GM sent to all GM dealers GlobalConnect Message GCUS-3-2383 regarding safety recall N212346510. 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 N212346510. 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 recall N212346510, 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 9800084 Working Capital Assistance for Safety Recall N212346510 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 DCS6008 URGENT – DISTRIBUTE IMMEDIATELY Date: December 16, 2021 Subject: Stop Delivery Order for Upcoming Safety Recall N212346510 Mismatched Spare Tire Models: 2019 – 2021 Chevrolet Silverado 1500 2019 – 2021 GMC Sierra 1500 To: All General Motors Dealers STOP DELIVERY ORDER Effective immediately, stop the delivery of certain 2019 – 2021 model year Chevrolet Silverado 1500 and GMC Sierra 1500 vehicles equipped with a 17” spare tire (RPO RHM, QBR, or XCQ) and also equipped with (i) 22” accessory road tires (RPO XD5 or XAH), (ii) 20” accessory road tires (RPO XDF) or (iii) 18” accessory road tires (RPO RCP), in new or used vehicle inventory. General Motors has notified the National Highway Traffic Safety Administration (NHTSA) about an upcoming safety recall that involves these vehicles. The GM recall number is N212346510. 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. If the original 17” spare tire is installed on the vehicle opposite one of the listed accessory tires, the anti-lock braking system (ABS) may not independently control the rear wheels on low-friction surfaces. If installed on opposing rear wheels in the subject vehicles, the difference in revolutions per kilometer (RPK) between (a) the original spare tire and (b) 22”, 20”, or 18” accessory road tires can interfere with the operation of the vehicle’s ABS system. If the ABS system cannot control the rear wheels independently on low-friction surfaces, there is an increased risk of a crash. To correct this condition, dealers will provide a 17” spare tire and wheel assembly with compatible RPK rating to owners confirmed to have the 22”, 20”, or 18” accessory road tires. Dealers will also apply a new spare tire information label over the existing tire placard label. Owners will also be provided an Owner’s Manual insert clarifying which spare tire that should be used with the 22”, 20” and 18” accessory road tires and the spare tire to be used with the 17” original tires. 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 December 16, 2021. This action has been taken to assist dealers with determining which vehicles are involved so they can properly respond to customer inquiries. A list of involved vehicles that have been identified as being in dealer new vehicle inventory is attached to this message. It is sorted by dealer Business Associate Code (BAC) for easy reference. Your dealership’s BAC will not be listed if none of the involved vehicles are currently in your new vehicle inventory. To identify involved vehicles in dealer used inventory, run an Open VIN Report or Field Action Initiation Report using Field Action Reports-GFAM within the Maxis Dealer Application in GlobalConnect. 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. 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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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 21V-985 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : General Motors, LLC Submission Date : DEC 16, 2021 NHTSA Recall No. : 21V-985 Manufacturer Recall No. : N212346510 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 : 626 Estimated percentage with defect : 100 % Vehicle Information : Vehicle 1 : 2019-2021 Chevrolet Silverado 1500 Vehicle Type : Body Style : Power Train : NR Descriptive Information : Customer sales records were used to identify specific VINs that were originally sold with a 17” spare tire (RPO RHM, QBR, or XCQ) and received either 22” accessory road tires (RPO XD5 or XAH) or 20” accessory road tires (RPO XDF) or 18” accessory road tires (RPO RCP). Vehicles that did not receive accessory tires are not affected by this recall. There are 552 Chevrolet Silverado 1500 vehicles affected by this recall. Production Dates : JUN 22, 2018 – OCT 06, 2021 VIN Range 1 : Begin : NR End : NR Not sequential Part 573 Safety Recall Report 21V-985 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 Vehicle 2 : 2019-2021 GMC Sierra 1500 Vehicle Type : Body Style : Power Train : NR Descriptive Information : Customer sales records were used to identify specific VINs that were originally sold with a 17” spare tire (RPO RHM, QBR, or XCQ) and received either 22” accessory road tires (RPO XD5 or XAH) or 20” accessory road tires (RPO XDF) or 18” accessory road tires (RPO RCP). Vehicles that did not receive accessory tires are not affected by this recall. There are 74 GMC Sierra 1500 vehicles affected by this recall. Production Dates : NOV 16, 2018 – OCT 06, 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 2019 – 2021 model year Chevrolet Silverado 1500 and GMC Sierra 1500 vehicles equipped with a 17” spare tire (RPO RHM, QBR, or XCQ) and also equipped with (i) 22” accessory road tires (RPO XD5 or XAH), (ii) 20” accessory road tires (RPO XDF) or (iii) 18” accessory road tires (RPO RCP). If the original 17” spare tire is installed on the vehicle opposite one of the listed accessory tires, the anti-lock braking system (ABS) may not independently control the rear wheels on low-friction surfaces. FMVSS 1 : NR FMVSS 2 : NR Description of the Safety Risk : If the ABS system cannot control the rear wheels independently on lowfriction surfaces, there is an increased risk of a crash. Description of the Cause : If installed on opposing rear wheels in the subject vehicles, the difference in revolutions per kilometer (RPK) between (a) the original spare tire and (b) 22”, 20”, or 18” accessory road tires can interfere with the operation of the vehicle’s ABS system. Identification of Any Warning that can Occur : NR Involved Components : Part 573 Safety Recall Report 21V-985 Page 3 The information contained in this report was submitted pursuant to 49 CFR §573 Component Name 1 : TIRE Component Description : 17″ Spare Tire Component Part Number : 23376686, 23376688, 23376706 Supplier Identification : Component Manufacturer Name : NR Address : NR NR Country : NR Chronology : GM opened an investigation into the subject vehicles on August 13, 2021, in connection with a read-across from a previous investigation that resulted in a recall of 86 heavy-duty trucks that were equipped with certain 17” OEM spare tires and larger diameter accessory road tire combinations. Ref. NHTSA Recall No. 21V578. GM first analyzed production records to determine which light-duty truck configurations may have been equipped with one of three available 17” OEM spare tires. GM then reviewed accessory-tire sales records to determine whether any of these vehicle configurations may have been offered larger diameter accessory road tires. GM’s engineers conducted testing at GM’s Milford Proving Grounds to evaluate which configurations, if any, exceeded GM’s internal RPK standard when the spare tire is installed. GM’s testing identified several light-duty truck configurations for further investigation. GM’s investigation identified zero relevant field reports and no crashes attributable to this condition in these vehicles. On December 9, 2021, GM’s Safety Field Action Decision Authority (SFADA) decided to conduct a safety recall. Part 573 Safety Recall Report 21V-985 Page 4 The information contained in this report was submitted pursuant to 49 CFR §573 Description of Remedy : Description of Remedy Program : Dealers will provide a 17” spare tire and wheel assembly with compatible RPK rating to owners confirmed to have the 22”, 20”, or 18” accessory road tires. Dealers will also apply a new spare tire information label over the existing tire placard label. Owners will also be provided an Owner’s Manual insert clarifying which spare tire that should be used with the 22”, 20” and 18” accessory road tires and the spare tire to be used with the 17” original tires. 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 : The provided spare tire has an RPK rating compatible with the listed accessory road tires. Identify How/When Recall Condition was Corrected in Production : On September 28, 2021, GM notified accessory distributors and installers that the 22”, 20”, and 18” accessory wheels/tires should only be sold to vehicles with compatible spare tires. On November 3, 2021, GM’s electronic parts catalog was corrected to restrict availability of 22”, 20”, or 18” accessory road tires to vehicles with compatible spare tires. GM ecommerce websites (accessories.gmc.com and accessories.chevrolet.com) were similarly updated on October 22, 2021. GM accessories information center (AIC) portal was updated on September 22, 2021. Recall Schedule : Description of Recall Schedule : Dealers will be notified on December 16, 2021. Customer notification is expected to occur by January 31, 2021. Planned Dealer Notification Date : DEC 16, 2021 – DEC 16, 2021 Planned Owner Notification Date : JAN 31, 2022 – JAN 31, 2022 * NR – Not Reported

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