A total of 735 GMC Hummer EVs, 2022 and 2023 models, and 89 2022 GM electric vans were affected.
The recall was due to a simple engineering failure, in which the flanges on the battery solid cover may not be properly lined.
According to Green Car Reports, GM’s decision to recall this model was due to three reports coming in in August that there was a problem with water getting into the battery pack.
Of the three reports, two of them stated that the vehicle would not start, while the other case said that the vehicle lost power while driving.
If water causes battery damage, GM notes that “one or more fault indicator lights may come on,” with a warning message displayed on the driver’s screen.
When investigated in August, recall documentation revealed a change in the procedure for the seal to be applied.
To address this issue, GM notified dealers on October 13 to inspect the battery pack cover. Meanwhile, owner notification will begin on November 28.
Drivers are advised to check their vehicle identification number (VIN) at the GM Owner Center, or they can call the NHTSA Vehicle Security Hotline at 888-327-4236.
In August GM confirmed that water may leak past the high-voltage connectors into the packaging in some vehicles. The problem was resolved with a trip to the dealer for additional sealant to be applied to the connector.