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.
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Only bulletins with component: Wiring and fuses are shown. Show all
| 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. |
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The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.