GMC Hummer EV Pickup: Electrical system — traction battery

Affects GMC Hummer EV Pickup · 2022–2023 — about 797 vehicles.

The hazard

Water accumulation in the high voltage battery pack can cause a loss of drive power, increasing the risk of a crash.

What to do

The remedy is currently under development. Owner notification letters were mailed April 13, 2023. Second letters will be sent once the remedy is available. Owners may contact EV Concierge at 1-833-HUMMER-EV, and BrightDrop Service Operations and Support at 1-888-987-4377. GM's number for this recall is N222380031.

Critical — crash/injury risk now High — injury risk; see remedy Moderate — fix at next service Low — minor / informational