Over 700 GMC Hummer EVs from the 2022 and 2023 model years will be recalled because the battery pack wasn't sealed correctly, which lets water in. At the same time as the recall was issued, the firm also put a stop-delivery order in place. They are still working to find a solution and have not been successful yet.

The campaign number 22V-771, by NHTSA, has 735 examples of the Hummer EV and 89 units of the BrightDrop Zevo 600 van. These two vehicles affected by the same problem: "the high-voltage battery pack enclosure in some of these vehicles may not have been properly sealed," GMC notes, adding that "flanges on the battery pack enclosure may not have been properly primed or electrocoated."

Water can ruin a high-voltage battery pack. GMC told NHTSA that it has found three EVs with this problem: an internal test vehicle that lost power while driving and two customer-owned vehicles that wouldn't start. At the time of this writing, GMC has not received any reports of accidents, injuries, or fires related to the issue. The company estimates that only about 1% of the recalled EVs are affected.

GMC Hummer EV

GMC began notifying dealers of the recall in October 2022, and it plans to start reaching out to owners on November 28, 2022. However, a solution has not been found yet. In the meantime, the company issued a stop-delivery order and asked dealers not to try their own repairs.

Source: Autoblog