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Service bulletins for the 2022 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.

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

By type

By component

By trouble code

By topic

Bulletins, newest first
22NA0052022-05-31. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. This informational bulletin provides information for dealers/technicians on Information on Opening / Closure Instructions for DDR (Damaged, Defective, Recalled) High Voltage Battery Dunnage / Container.
18NA3612022-05-31. Service bulletin. FUEL SYSTEM, GASOLINE. This technical bulletin provides a procedure to flush the cooler lines to validate if there is excessive debris in the fuel system caused by a failed part.
18NA2352022-05-31. Service bulletin. FUEL SYSTEM, OTHER:DELIVERY:FUEL PUMP. This information bulletin advised the tech of possible use of low fuel quality and the possible ramifications in performance in regards to the customers concerns.
18NA1502022-05-31. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION. This informational bulletin provides information on 6.6L Duramax Possible Oil Leak Path Information.
18NA1032022-05-31. Service bulletin. EXTERIOR LIGHTING; FUEL SYSTEM, GASOLINE. This service bulletin provides service information for customer concerns of an in-tank fuel pump whining noise, engine hard to start and/or stalls and Malfunction Indicator Lamp (MIL) is illuminated that may be caused by gelling of fuel in cold temperatures.
18NA0732022-05-31. Service bulletin. ENGINE. This service bulletin provides graphics, information and guidelines for engine component wear to assist service personnel as a guideline to perform necessary engine repairs and prevent unnecessary engine replacement.
18NA0672022-05-31. Service bulletin. SERVICE BRAKES. This service bulletin provides information for cleaning brake dust off of aluminum or chrome wheels.
PIT59052022-05-16. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN. This Preliminary information communicates ordering process for front drive unit (S8L) and rear drive unit (P79) restriction for the 2022 MY GMC HUMMER EV and Brightdrop EV600.
PIT59042022-05-16. Service bulletin. ELECTRICAL SYSTEM:PROPULSION SYSTEM:CHARGING:CABLE/CORD:ONBOARD; ELECTRICAL SYSTEM:PROPULSION SYSTEM:CHARGING:CABLE/CORD:ACCESSORY. This Preliminary information communicates an issue with the Charger stations/cord that can cause these codes to set, and that engineering is working on a software fix, to help with the Charger port Temp Codes. P0D9A, P298C, & P0E5F
22-NA-0052022-05-11. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This informational bulletin provides information for dealers/technicians on Information on Opening / Closure Instructions for DDR (Damaged, Defective, Recalled) High Voltage Battery Dunnage / Container.
12-00-89-003B2022-05-10. Service bulletin. EQUIPMENT:ELECTRICAL; ENGINE. This service bulletin provides policy information on warranty administration guidelines for multiple repairs with independent causes (GM Canada Dealers Only).
22-NA-0382022-05-06. Service bulletin. EQUIPMENT. This warranty bulletin provides information on Customer Concern Not Duplicated (CCND) Labor Operation Numbers.
N2223657302022-05-04. Service bulletin. EQUIPMENT. Certain vehicles, equipped with a power tonneau cover, (LPO 5KM), have a condition where the cover loses the ability to track its location, resulting in partial opens/closes and stops, requiring recalibrating the cover to return functionality. Dealers will inspect the electronic control unit, (ECU) for V2.0 sticker, and if necessary, replace units.
22-NA-0832022-05-03. Service bulletin. ELECTRICAL SYSTEM. This service bulletin provides Requirements for Replacement of the Dual Mode Cord Set Under Warranty.
22-NA-0702022-05-03. Service bulletin. EQUIPMENT. This service bulletin provides information for replacement parts traceability (RPT) process to aid in tracking part replacements.
01-00-89-010P2022-04-29. Service bulletin. EQUIPMENT. This informational bulletin provides information on a guide to help reduce repeat visits for the same customer concern.
PI0281I2022-04-22. Service bulletin. STRUCTURE:FRAME AND MEMBERS:UNDERBODY SHIELDS; STRUCTURE. This preliminary informational (PI) bulletin provides information to dealership personnel which may be helpful when addressing underbody component corrosion with customers.
PIT59032022-04-18. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This Preliminary information communicates to General Motors dealers some helpful steps to diagnose the speed limit showing dashes concern.
PIT58982022-04-18. Service bulletin. STRUCTURE; EQUIPMENT. This Preliminary information communicates that when installing the Tonneau Cover it possible that Shims will be needed that are not with the cover
PIT3271M2022-04-18. Service bulletin. WHEELS; TIRES. This Preliminary Information communication provides information to the technician about changing the tire and wheel size on vehicles. General Motors will only support a tire calibration for tires that have been sized, tested and designed for the vehicle in question and its applications. Technician should not use the information that is provided by the antilock braking system tire size selection.
PIT5877A2022-04-18. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM); EQUIPMENT. This Preliminary information communicates to dealer that GM engineering is working on a permanent solution for the concern and provides a work around.
PIT5876A2022-04-18. Service bulletin. EQUIPMENT; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). This Preliminary information communicates to GM dealeer that GM engineering is aware of and working on a solution to the map pop up concern
01-00-89-010O2022-04-08. Service bulletin. UNKNOWN OR OTHER. This informational bulletin provides information on a guide to help reduce repeat visits for the same customer concern.
22-NA-0702022-04-06. Service bulletin. EQUIPMENT. This service bulletin provides information for replacement parts traceability (RPT) process to aid in tracking part replacements.
22-NA-0532022-04-06. Service bulletin. EQUIPMENT. This service bulletin provides information for dealers/technicians on New Labor Operations for Limited Production Option (LPO) Calibrated Accessories.

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