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Service bulletins for the 2023 GMC Hummer EV Pickup

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

641 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

By topic

Only bulletins with component: Electrical system are shown. Show all

Bulletins, newest first
22-NA-2152023-12-06. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This warranty administration bulletin provides policy information for chargers that are covered under the terms of a 3-year Limited Parts Warranty from the date of purchase.
23-NA-2022023-12-06. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This informational bulletin provides information on High Voltage Drive Motor Battery - TAC Approval and Exchange Program for GMC HUMMER EV, Silverado EV, & BrightDrop.
PIT6044E2023-12-04. Service bulletin. BACK OVER PREVENTION:SOFTWARE; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. This Preliminary information communicates that a Software update is in the works and to disconnect the 12 volt battery to clear the codes.
PIT6044D2023-12-04. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This Preliminary information communicates that a Software update is in the works and to disconnect the 12 volt battery to clear the codes.
PIT6065A2023-12-04. Service bulletin. ELECTRICAL SYSTEM. This Preliminary information communicates to technicians to perform the programming to the vehicles module to correct customer concerns.
21-NA-1352023-11-29. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT; EXTERIOR LIGHTING; ELECTRICAL SYSTEM. This service bulletin provides information to inform dealership personnel about Law Enforcement and Government vehicles that request to disable or enable content.
23-NA-1892023-11-15. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This service bulletin assists technicians in setting up PicoScope hardware/software to monitor CAN bus traffic (voltage patterns) to aid Technical Assistance (TAC) and Field Service Engineers (FSEs) in diagnosing electrical issues present on network communication circuits.
23-NA-1822023-11-15. Service bulletin. ELECTRICAL SYSTEM. This informational bulletin provides information on Information on High Voltage Label on X6 Branch of the BCM Wiring.
23-NA-1512023-11-15. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This informational bulletin provides a procedure to High Voltage Battery Core Return Shipment Criteria.
PIE0753B2023-10-26. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This engineering information (EI) will assist GM to recover a small number of electric vehicle battery packs from customer-owned vehicles in the field for further engineering study and analysis.
PIE0753A2023-10-18. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This engineering information (EI) will assist GM to recover a small number of electric vehicle battery packs from customer-owned vehicles in the field for further engineering study and analysis.
23-NA-1512023-10-06. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This informational bulletin provides a procedure to High Voltage Battery Core Return Shipment Criteria.
N23-2404482023-08-24. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. (There may be future updates under this same release number.) Your GMC Hummer EV keeps getting better. This software update includes the following if your vehicle is equipped: Refinements: •A variety of other minor software updates to make your driving and in-vehicle experience better. Better Never Stops™
22-NA-1142023-08-03. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This service bulletin provides information on Forklift and Vehicle Hoist Requirements to Support Electric Vehicle (EV) High Voltage Battery Handling.
22-NA-2152023-07-26. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This warranty administration bulletin provides policy information for chargers that are covered under the terms of a 3-year Limited Parts Warranty from the date of purchase.
23-NA-1252023-07-25. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This service bulletin provides information for dealers/technicians on Over the Air (OTA) and In Market Enhancement (IME) FAQs.
23-NA-0552023-07-25. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This service bulletin provides information on the EL-52800 Diagnostic & Charge Battery Station (DCBS) – FAQs.
PIE0746A2023-07-14. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN. This engineering information (EI) closure ends the need for gathering further information from technicians in regard to a MIL Illuminated on DIC with DTCs P31A0, P31A1, P31A2, P31A3, P31A4 and/or P31A5 Set.
23-NA-0642023-07-14. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This service bulletin provides information on the Transport Mode Feature, also known as Logistics mode, which is used to increase the 12V Battery stand time of the vehicle during transit and or long period of stand time at the dealerships.
22-NA-0532023-07-14. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING; EXTERIOR LIGHTING. This service bulletin provides information for dealers/technicians on New Labor Operations for Limited Production Option (LPO) Calibrated Accessories.
13-08-116-001I2023-07-13. Service bulletin. ELECTRICAL SYSTEM. The intent of this service bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple customer concerns that do not have other diagnostic methods to identify them.
23-NA-0072023-07-11. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:INFOTAINMENT:VIDEO (TOUCH)SCREEN/MONITOR/UNIT; EQUIPMENT. This service bulletin provides repair information to correct a customer concern of Black Radio Display Screen (Triangle and Camera with Slash Through it) with DTCs B1A62 82 and 86 Setting Current in Video Processing Module (VPM).
22-NA-2422023-07-11. Service bulletin. ELECTRICAL SYSTEM. This warranty administration bulletin provides information for dealers/technicians on System Reset and Connector Reconnect Labor Code Numbers.
21-NA-0612023-07-11. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM. This service bulletin provides information for dealers on Using EL-52545 When Diagnosing PEPs Transmitter Key Fobs.
22-NA-2352023-06-21. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This service bulletin provides repair information to correct a customer concern of Wireless Charging Intermittent When Using iPhone and Samsung Phones at Offset Positions.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.