N212354521 Heated Vented Seats Retrofit Due to Chip Shortage – Front Seats Only – 2022 Chevrolet & GMC

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Customer Satisfaction Program N212354521 Heated Vented Seats Retrofit Due to Chip Shortage – Front Seats Only Copyright 2022 General Motors. All Rights Reserved. Page 1 of 10 Release Date: October 2022 Revision: 01 Revision Description: This bulletin has been revised to update the specific part language to include information regarding how to order the radio controls. Only order from an Electronic Service Center and follow the regular return process on core. An Important statement has also been added “FOR SILVERADO AND SIERRA ONLY – MULTIPLE PART NUMBERS MAY SHOW IN THE ELECTRONIC PARTS CATALOG. ORDER THE PART THAT DOES NOT INCLUDE RPO 00V IN THE USAGE COLUMN IN THE EPC”. Please discard all copies of bulletin N212354521. Attention: This program is in effect until November 30, 2025. Make Model Model Year From To RPO Description Chevrolet Silverado 1500 LTD 2022 2022 Chevrolet Silverado 2500HD/3500HD Chevrolet Traverse GMC Sierra 1500 Limited GMC Sierra 2500HD/3500HD 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 Due to the industry-wide semiconductor shortage, the front heated/ventilated seats, front heated seats, or rear heated seats are not functional on certain 2022 model year vehicles listed above, built beginning November 15, 2021. The affected vehicle owners should have been made aware of the condition at sale, and notified that once parts are available, they would be eligible for a no additional cost retrofit to enable the feature. Correction Dealers are to replace the front seat heater control module, replace the front HVAC user interface control, reprogram the body control module and on some vehicles, reprogram the HVAC control module. Parts Quantity Part Name Part No. 1 Module – Front Seat Heater Vent Control * 1 Control – Heater and Air Conditioning User Interface * 1 Control – AM/FM Stereo Radio (Silverado/Sierra) * *Warning: To avoid potential personal injury and/or part damage, the Electronic Parts Catalog (EPC) and VIN MUST BE USED to order the correct part. IMPORTANT: FOR SILVERADO AND SIERRA ONLY – MULTIPLE PART NUMBERS MAY SHOW IN THE ELECTRONIC PARTS CATALOG. ORDER THE PART THAT DOES NOT INCLUDE RPO 00V IN THE USAGE COLUMN IN THE EPC. Important: Due to limited initial parts availability, dealers should not order parts included in this field action for use as shelf stock. Parts should only be ordered when the dealer has confirmed and validated the customer has a scheduled appointment with the service department. Parts required to complete this repair are to be obtained from General Motors Customer Care and Aftersales (GMCC&A). For the radio controls specifically, please order from an Electronic Service Center as normal and follow the regular return process on core. Please refer to your “involved vehicles listing” before ordering parts. Order parts on a CSO = Customer Special Order only. DRO’s may be cancelled. Place the VIN # in the notes field of the order. If there is no VIN in the notes field your order may be cancelled. Please do not place orders as SPAC; it will delay shipment of the order and will not provide visibility. 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. For Export: Please contact CCA’s Export Order Fulfillment group to place the order on your behalf. Customer Satisfaction Program N212354521 Heated Vented Seats Retrofit Due to Chip Shortage – Front Seats Only Page 2 of 10 Warranty Information Labor Operation Description Labor Time Trans. Type Net Item 9106346* Install Front Seat Heater Vent Control Module, Heater and Air Conditioning User Interface Control and Reprogram BCM and HVAC Control Module Traverse 1.4 ZFAT N/A 9106347* Install Front Seat Heater Vent Control Module, AM/FM Stereo Radio Control, Heater and Air Conditioning User Interface Control and Reprogram BCM Sierra 1500 Limited Silverado 1500 LTD Sierra 2500HD/3500HD Silverado 2500HD/3500HD 1.4 ZFAT N/A Important: * To avoid warranty transaction rejections, carefully read and follow the instructions below: 6125814 • The Warranty Claim Code from the programming event must be accurately entered in the “Warranty Claim Code” field of the transaction. • When more than one Warranty Claim Code is generated for a programming event, it is required to document all Warranty Claim Codes in the “Correction” field on the job card. Dealers must also enter one of the codes in the Warranty Claim Code field of the transaction, otherwise the transaction will reject. It is best practice to enter the FINAL code provided by SPS2. Warranty Claim Code Information Retrieval 6125774 If the Warranty Claim Code was not recorded on the Job Card, the code can be retrieved in the SPS2 system as follows: 1. Open TLC on the computer used to program the vehicle. Customer Satisfaction Program N212354521 Heated Vented Seats Retrofit Due to Chip Shortage – Front Seats Only Page 3 of 10 2. Select and start SPS2. 3. Select Settings (1). 4. Select the Warranty Claim Code tab (2). The VIN, Warranty Claim Code and Date/Time will be listed on a roster of recent programming events. If the code is retrievable, dealers should resubmit the transaction making sure to include the code in the SPS Warranty Claim Code field. Required – Front Seat Heater Vent Control Module Serial Number Recording for all markets except Canada, US, and Mexico IMPORTANT: * (TECHNICIAN and WARRANTY ADMINISTRATOR) SERIAL NUMBER RECORDING REQUIREMENT. The replacement Front Seat Heater Vent Control Module serial numbers must be captured by the technician and recorded on the job card. The Warranty Administrator MUST enter the replacement Front Seat Heater Vent Control Module serial numbers in GWM (Global Warranty Management) or in DMS (Dealer Management System). Enter the serial number of the replacement Front Seat Heater Vent Control Modules in the ‘General Comments’ comments section. Failure to enter this serial number will cause the claim to reject. 6098078 Record the serial number on the seat heater vent control module label. 5906148 Customer Satisfaction Program N212354521 Heated Vented Seats Retrofit Due to Chip Shortage – Front Seats Only Page 4 of 10 Required – Front Seat Heater Vent Control Module Number Recording for Canada, US, and Mexico The replacement front seat heater vent control module requires the serial number be recorded. A new process called Replacement Part Traceability (RPT) is being used with this retrofit/Cust Satisfaction Program. Overview of RPT Replacement Part Traceability (RPT) is a new dealer process to document and track critical part serial numbers via the Certified Service Mobile Toolbox (CSMT) application. A field action, service bulletin, or other communication will be issued any time there is a request for technicians to complete an RPT submission. Only critical parts will require an RPT, not every part replacement. Submitting an RPT request is done using the RPT tool within the CSMT app. Technicians simply scan the VIN of the vehicle and the traceability barcode (barcode or QR code) of the new part being installed on the vehicle. Once scanned, the information is submitted through the CSMT app and stored in a GM database. That’s the end of the process. The free CSMT app, which also includes the Field Product Reporting and Pre-Repair Authorization tools, is available on the Google Play Store (Android devices) and the App Store (Apple devices). By scanning critical part numbers using the Replacement Part Traceability function, GM will be able to reference replaced parts in the future. The exact parts that are on a vehicle will be known, even after a service part replacement. The RPT process also simplifies the repair and claim submission processes. It eliminates the need of having technicians write down the 16-character serial number on the job card and for warranty administrators to input the serial number into GWM or DMS. Refer to TSB 22-NA-070 for specific information on downloading the App to your mobile phone, how to use/submit the new part serial number/QR code information and other related Q and A. IMPORTANT: A new version (3.6) of the Certified Service Mobile Toolbox (CSMT) app for Replacement Part Traceability (RPT) will be available to download on August 8, 2022. This update includes enhanced QR/barcode scanning functionality and minor bug fixes. If you do not have your device programmed to automatically update apps, you must download the latest version no later than August 22, 2022. All users must perform this update to be able to continue to use the tools provided in the application. HOW TO CHECK THE VERSION OF YOUR OPERATING SYSTEM • Apple: Settings/General/About/Software Version • Android: Settings/About Phone/Software Information/Android Version 6098077 If the App is already loaded to your phone, simply: 1. Scan the VIN (door pillar QR code or windshield VIN barcode) and Customer Satisfaction Program N212354521 Heated Vented Seats Retrofit Due to Chip Shortage – Front Seats Only Page 5 of 10 2. Scan the new part (QR code) and 3. Check the information and if correct then, Submit. Failure to submit this serial number by RPT may cause the claim to reject. Service Procedure 1. Remove the existing front seat heater vent control module. Refer to Front Seat Heater Vent Control Module Replacement in SI. Discard the remove module. Warning: To avoid potential personal injury and/or part damage, the Electronic Parts Catalog (EPC) and VIN MUST BE USED to order the correct part. IMPORTANT: FOR SILVERADO AND SIERRA ONLY – MULTIPLE PART NUMBERS MAY SHOW IN THE ELECTRONIC PARTS CATALOG. ORDER THE PART THAT DOES NOT INCLUDE RPO 00V IN THE USAGE COLUMN IN THE EPC. 2. Record the serial number of the new seat heater vent control module (see instructions above). 3. Install the new service front seat heater vent control module. Refer to Front Seat Heater Vent Control Module Replacement in SI. 4. Sierra and Silverado Only. In order to replace the heater and air-conditioning user interface control, it is first necessary to install the correct radio control assembly. Refer to Radio Control Assembly Replacement in SI. 5. Replace the heater and air-conditioning user interface control. Refer to Heater and Air Conditioning User Interface Control Replacement in SI. Note: Carefully read and follow the instructions below. • Ensure the programming tool is equipped with the latest software and is securely connected to the data link connector. If there is an interruption during programming, programming failure or control module damage may occur. • Stable battery voltage is critical during programming. Any fluctuation, spiking, over voltage or loss of voltage will interrupt programming. Install a GM Authorized Programming Support Tool to maintain system voltage. Refer to www.gmdesolutions.com for further information. If not available, connect a fully charged 12 V jumper or booster pack disconnected from the AC voltage supply. DO NOT connect a battery charger. • Follow the on-screen prompts regarding ignition power mode, but ensure that anything that drains excessive power (exterior lights, HVAC blower motor, etc) is off. • Clear DTCs after programming is complete. Clearing powertrain DTCs will set the Inspection/Maintenance (I/M) system status indicators to NO. Important: The service technician always needs to verify that the VIN displayed in the TLC left side drop down menu and the top center window match the VIN plate of the vehicle to be programmed prior to using Service Programming System 2 (SPS2) for programming or reprogramming a module. • For the TLC application, service technicians need to always ensure that the power mode (ignition) is “ON” before reading the VIN from the vehicle’s VIN master module and that they do not select a VIN that is already in the TLC application memory from a previous vehicle. • If the VIN that shows up in the TLC top center window after correctly reading the VIN from the vehicle does not match the VIN plate of the vehicle, manually type in the VIN characters from the vehicle VIN plate into the TLC top center window and use these for programming or reprogramming the subject module with the correct vehicle VIN and software and/or calibrations. • The Engine Control Module (ECM) is the master module (for VIP vehicles) that TLC reads to determine the VIN of the vehicle. If the VIN read from the vehicle by TLC does not match the VIN plate of the vehicle, the ECM also needs to be reprogrammed with the correct VIN, software and calibrations that match the vehicle’s VIN plate. • The Body Control Module (BCM) is the master module (for GEM vehicles) that TLC reads to determine the VIN of the vehicle. If the VIN read from the vehicle by TLC does not match the VIN plate of the vehicle, the BCM also needs to be reprogrammed with the correct VIN, software and calibrations that match the vehicle’s VIN plate. Caution: Be sure the VIN selected in the drop-down menu (1) is the same as the vehicle connected (2) before beginning programming. Customer Satisfaction Program N212354521 Heated Vented Seats Retrofit Due to Chip Shortage – Front Seats Only Page 6 of 10 5743643 Important: If the vehicle VIN DOES NOT match, the message below will be shown. 5877000 Customer Satisfaction Program N212354521 Heated Vented Seats Retrofit Due to Chip Shortage – Front Seats Only Page 7 of 10 5644477 Important: Techline Connect screens shown above. Important: If the same calibration/software warning is noted on the TLC Summary screen, select OK and follow screen instructions. After a successful programming event, the WCC is located in the Service Programming System dialogue box of the SPS Summary screen. No further action is required. Refer to the Warranty section of the bulletin. 6. Reprogram the body control module. Refer to K9 Body Control Module: Programming and Setup in SI. • Traverse only. Reprogram the HVAC Control Module. Refer to HVAC Control Module Reprogramming with SPS in SI. 5644478 Note: The screenshot above is an example of module programming and may not be indicative of the specific module that is being programmed. Module selection and VIN information have been blacked out. Important: To avoid warranty transaction rejections, you MUST record the warranty claim code provided on the Warranty Claim Code (WCC) screen shown above on the job card. Refer to callout 1 above for the location of the WCC on the screen. 7. Record SPS Warranty Claim Code on job card for warranty transaction submission. Note: If a heated seat related DTC is present, refer to SI for diagnostic and repair information. Customer Satisfaction Program N212354521 Heated Vented Seats Retrofit Due to Chip Shortage – Front Seats Only Page 8 of 10 8. Before removing scan tool, verify proper operation of heated seats by pressing heated seat buttons and checking for DTCs. Dealer Responsibility All new, used, GM Certified Used, courtesy transportation vehicles, dealer shuttle vehicles, etc. in dealers’ possession and subject to this program 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, dealertraded, 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 program at no charge to customers, regardless of mileage, age of vehicle, or ownership, through November 30, 2025. Customers who have recently purchased vehicles sold from your vehicle inventory, and for which there is no customer information indicated on the involved vehicle 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. Program followup 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 program enters your vehicle inventory or is in your facility for service through November 30, 2025, you must take the steps necessary to be sure the program correction has been made before selling or releasing the vehicle. Dealer Reports – For USA & Export For dealers with involved vehicles, a listing has been prepared and will be available through GM GlobalConnect Maxis Field Action Reports or sent directly to export dealers. The Inventory tab of the dealer reports will contain VINs that apply to this field action. 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 field action 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 program 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. Customer Satisfaction Program N212354521 Heated Vented Seats Retrofit Due to Chip Shortage – Front Seats Only Page 9 of 10 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 Customer Satisfaction Program N212354521 Heated Vented Seats Retrofit Due to Chip Shortage – Front Seats Only Page 10 of 10 October 2022 This notice applies to your vehicle, VIN: ________________________________ Dear General Motors Customer: Our records indicate that, at the time you purchased or leased your GM vehicle, the vehicle was not equipped with some of its intended features due to a nationwide parts shortage. We are pleased to inform you that your GM dealer is now ready to enable your front heated seats or front heated/ventilated seats. However, due to continued parts shortages, your vehicle may have additional features that will require service at a later date in order to be enabled. We will contact you once parts are available to enable those features in your vehicle. What We Will Do: Your GM dealer will install the required parts and software in your vehicle to enable your front heated seats or front heated/ventilated seats. This service will be performed for you at no charge until November 30, 2025. What You Should Do: We recommend that you contact your GM dealer as soon as possible to schedule an appointment for this retrofit. 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) 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 We appreciate your patience while we continue to work to obtain the necessary parts to enable these features in your GM vehicle. We want you to know that we will do our best, throughout your ownership experience, to ensure that your GM vehicle provides you with many miles of enjoyable driving. Neelie O’Connor Global Executive Director Customer Experience Operations N212354521 GLOBAL SAFETY FIELD INVESTIGATIONS DCS6317 URGENT – DISTRIBUTE IMMEDIATELY Date: October 21, 2022 Subject: REVISION: N212354521-01 – Customer Satisfaction Program Heated Vented Seats Retrofit Due to Chip Shortage Front Seat Heater Vent Module, Switches and Programming Revised Part Language section Models: 2022 Chevrolet Silverado 1500 LTD 2022 Chevrolet Silverado 2500HD/3500HD 2022 Chevrolet Traverse 2022 GMC Sierra 1500 Limited 2022 GMC Sierra 2500HD/3500HD To: All General Motors Dealers This bulletin has been revised to update the specific part language to include information regarding how to order the radio controls. Only order from an Electronic Service Center and follow the regular return process on core. An Important statement has also been added “FOR SILVERADO AND SIERRA ONLY – MULTIPLE PART NUMBERS MAY SHOW IN THE ELECTRONIC PARTS CATALOG. ORDER THE PART THAT DOES NOT INCLUDE RPO 00V IN THE USAGE COLUMN IN THE EPC”. Please discard all copies of bulletin N212354521. Customer Letter Mailing The customer letter mailing for N212354521 will begin on October 21, 2022. Global Warranty Management (GWM) The Required Field Action section on the Investigate Vehicle History (IVH) screen was updated October 19, 2022. A list of involved vehicles is attached to this message. END OF MESSAGE GLOBAL SAFETY FIELD INVESTIGATIONS

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