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
| 22-NA-144 | 2022-09-07. Service bulletin. STRUCTURE; ELECTRICAL SYSTEM. This service bulletin provides a repair procedure to correct customer concerns of Power Windows, Door Locks and Outside Mirrors Inoperative, Unwanted Theft Alarm Activation, Random Messages Displayed on Driver Information Center (DIC). |
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| PIT5933 | 2022-08-15. Service bulletin. STRUCTURE:BODY:DOOR. This Preliminary information communicates how to repair a loose trim bolt cap on the front door panels of the 2022 HUMMER EV. |
| PIT5857C | 2022-08-15. Service bulletin. ELECTRICAL SYSTEM. This Preliminary information communicates that the High Voltage Voltage Battery pack is not on TAC Exchange. For Engineering Review. |
| PIT5857B | 2022-08-15. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This Preliminary information communicates that the High Voltage Voltage Battery pack is not on TAC Exchange. For Engineering Review. |
| PIT5925 | 2022-08-15. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING:COOLING SYSTEM. This Preliminary information communicates to the field that water hitting the cooling fans can set a false DTC: P0494 for the new 2022 HUMMER EV. |
| 22-NA-145 | 2022-08-04. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. This technical bulletin provides repair information to correct a customer concern of Super Cruise Enhancement: Trailering and Active Lane Change. |
| 21-NA-189 | 2022-08-04. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. This service bulletin provides information on Super Cruise Escalation Cancellation. |
| 22-NA-144 | 2022-08-03. Service bulletin. STRUCTURE:INTERIOR PANELS:DOOR; ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:WIRING:SWITCHES/KNOBS/BUTTONS; STRUCTURE. This technical bulletin provides a procedure to inspect the X500 electrical connector for corrosion and to repair it if found with corrosion and to also reseal the body panels if the concern has or has not been found. |
| 18-NA-306 | 2022-08-03. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This Warranty Administration service bulletin provides information for dealers/Service advisors on when and how to submit a Pre-Repair Authorization (PRA). |
| 04-00-89-015X | 2022-08-03. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This bulletin provides information on Warranty Administration – Required Operating Procedures - 8 Points (U.S. Only). |
| N222362090 | 2022-08-01. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. Customer Satisfaction Program. Certain vehicles may have a condition in which the high voltage connector may corrode and allow water to leak into the high voltage battery. A Malfunction Indicator Light (MIL) may illuminate if this issue occurs. Dealers will apply sealant to seal the high voltage connector. |
| PIT5878B | 2022-07-25. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. This Preliminary information communicates to the field engineering contacts to assist in the diagnosis of HVAC concerns on the new 2022 HUMMER EV and the 2023 LYRIC. |
| PIT5854A | 2022-07-25. Service bulletin. EQUIPMENT. This Preliminary information communicates information on vehicle speed being limited due to aftermarket lower kit being installed on the vehicle. |
| 22-NA-141 | 2022-07-20. Service bulletin. ELECTRICAL SYSTEM. This service bulletin provides Battery Service Guide information for electric vehicles (EV). |
| 090604026V | 2022-07-18. Service bulletin. UNKNOWN OR OTHER. Information. |
| 060089029U | 2022-07-18. Service bulletin. UNKNOWN OR OTHER. Information. |
| 22NA039 | 2022-07-18. Service bulletin. UNKNOWN OR OTHER. Information on Front License Plate Adapter Bracket Installation During PDI. |
| 22-NA-135 | 2022-07-12. Service bulletin. EQUIPMENT. This warranty admin bulletin covers information on Essential Tools that include Consumable Parts. |
| 12-01-37-001F | 2022-07-12. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING; VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. This service bulletin provides information to dealership personnel on a new refrigerant (R1234yf) for A/C service. |
| 22-NA-126 | 2022-07-12. Service bulletin. FORWARD COLLISION AVOIDANCE. This service bulletin provides repair information to correct a customer concern of Automatic Emergency Braking (AEB) Forward Collision Icon Lamp On with No DTCs Present. |
| 22-NA-125 | 2022-07-12. Service bulletin. EQUIPMENT. This informational bulletin advises the tech of a slight modification that may be need to a cargo loop bezel if found when installing to be tight in the panel. |
| 22-NA-070 | 2022-07-12. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This service bulletin provides information for replacement parts traceability (RPT) process to aid in tracking part replacements. |
| 21-NA-026 | 2022-07-12. Service bulletin. EQUIPMENT. This service bulletin provides information for dealers/technicians on accessory all-weather floor liners and flat mats warped or misshapen. |
| 22-NA-114 | 2022-07-01. Service bulletin. ELECTRICAL SYSTEM. This service bulletin provides information on Forklift and Vehicle Hoist Requirements to Support Electric Vehicle (EV) High Voltage Battery Handling. |
| N222360900 | 2022-07-01. Service bulletin. ELECTRICAL SYSTEM; SUSPENSION. Customer Satisfaction Program. This bulletin contains the service procedure to enable Extract Mode on certain vehicles. This service procedure also corrects a potential calibration error that can cause a Service Leveling System message to erroneously appear on the DIC (Driver Information Center) during certain driving maneuvers. Dealers are to replace the position sensors and reprogram sequential programming. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.