N232429880
Service Bulletin Details
Public Details for: N232429880
Service update - certain vehicles may have a software defect that causes a diagnostic trouble code (dtc) to set. Dealers are to reprogram the battery energy control module.
Models from 2024
2024 CADILLAC LYRIQ |
2024 GMC HUMMER EV |
Models from 2022
2022 GMC HUMMER EV |
GENERAL MOTORS DCS6836 URGENT - DISTRIBUTE IMMEDIATELY Date: March 26, 2024 Subject: N232429880 - Service Update Battery Energy Control Module Models: 2023 BrightDrop Zevo 600 2023 – 2024 Cadillac LYRIQ 2022 – 2023 GMC HUMMER EV 2024 GMC HUMMER EV Pickup 2024 GMC HUMMER EV SUV General Motors is releasing Service Update N232429880 today. What Should Dealers Do: Dealers should review IVH or the Dealer Maxis reports for open VINs in their inventory. Dealers can view the attached bulletin and it will also be displayed in Service Information tomorrow. Dealers need to contact the owners on sold units to have the vehicle software updated. This update will improve the ownership experience. A list of ALL involved VINs is attached to this message. Note: this list is only accurate at the time of report creation and all VINs should be validated in IVH prior to repair. END OF MESSAGE Service Update N232429880 Battery Energy Control Module Release Date: Attention: March 2024 Revision: 00 This service update includes vehicles in dealer inventory and customer vehicles that return to the dealership for any reason. This bulletin will expire at the end of the involved vehicle’s New Vehicle Limited Warranty period. For Cadillac and GMC EV Vehicles: The repairs outlined in this bulletin must only be completed at an authorized EV dealer and repairs must be performed by a technician who has successfully completed the applicable technical training required to perform this repair. For BrightDrop vehicles: This field action can only be completed by BrightDrop dealers or BrightDrop certified repair facilities who have met all BrightDrop specific training, tool and equipment requirements. Repairs must be performed by a technician who has successfully completed the required training. Make BrightDrop Cadillac GMC GMC GMC Model Zevo 600 LYRIQ HUMMER EV HUMMER EV Pickup HUMMER EV SUV Model Year From To 2023 2023 2023 2024 2022 2023 2024 2024 2024 2024 RPO Description 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 Correction Certain 2022 - 2024 model year vehicles, noted in the table above, may have a software defect that causes a diagnostic trouble code (DTC) to set. Dealers are to reprogram the battery energy control module. Parts No parts are required for this repair. Warranty Information Labor Operation 9107159* 9107160* Important: Description Verified Module Software or Calibration Level: Module Is Programmed with Same Level Software or Calibration Battery Energy Control Module (BrightDrop, LYRIQ & 2023-24 HUMMER EV) or Battery Energy Control Modules + Drive Motor Control Modules (2022 HUMMER EV) Reprogramming with SPS Labor Time 0.2 Trans. Type Net Item 0.3 ZFAT N/A * 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. Copyright 2024 General Motors. All Rights Reserved. Page 1 of 6 Service Update N232429880 Battery Energy Control Module • 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. 2. 3. 4. Open TLC on the computer used to program the vehicle. Select and start SPS2. Select Settings (1). 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. Service Procedure 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. Page 2 of 6 Service Update N232429880 Battery Energy Control Module • 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. 5743643 Important: If the vehicle VIN DOES NOT match, the message below will be shown. 5877000 Page 3 of 6 Service Update N232429880 Battery Energy Control Module 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. BrightDrop, LYRIQ and ONLY 2023-2024 HUMMER EV 1. Reprogram the Battery Energy Control Module. Refer to K16 Battery Energy Control Module: Programming and Setup 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. 2. Record SPS Warranty Claim Code on job card for warranty transaction submission. Page 4 of 6 Service Update N232429880 Battery Energy Control Module 2022 HUMMER EV ONLY 6588329 1. Select K16K107 Battery Energy Control Modules + Drive Motor Control Modules in SPS and follow on screen instructions. 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. 2. Record SPS Warranty Claim Code on job card for warranty transaction submission. Dealer Responsibility Whenever a vehicle subject to this service update enters your vehicle inventory or is in your facility for service in the future, and the vehicle is still covered under the New Vehicle Limited Warranty, you must take the steps necessary to be sure the service update correction has been made before selling or releasing the vehicle. All new, used, GM Certified Pre-Owned (CPO), courtesy transportation vehicles, dealer shuttle vehicles, CarBravo, etc. in dealers' possession and subject to this field action 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 Pre-Owned (CPO) vehicles currently in the dealers’ inventory within the SHIFT Digital system 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 SHIFT Digital system, or once again be used in the Courtesy Transportation Program. Page 5 of 6 Service Update N232429880 Battery Energy Control Module Dealer Reports – For USA & Export The Inventory tab of the Open Vehicle Report will contain Service Update Bulletin VINs that apply to this field action. This information is intended to assist dealers with the PROMPT COMPLETION of these vehicles. The Customer InService tab will not contain Service Update Bulletin VIN data because the intent of a Service Update Bulletin is to not inconvenience a customer with a special trip for service. Service Update Bulletins are to be completed when the customer is in for a regularly scheduled visit. 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 Page 6 of 6