The GMC Hummer EV and GMC Sierra EV are listed in a new General Motors service update that includes a few tweaks for the vehicles’ high-voltage battery software. The new GM Service Update was issued ...
Certain units of the 2022-2024 GMC Hummer EV are included in a new Service Update from General Motors, which covers a fix for a battery energy control module issue. The Service Update applies to both ...
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