GMC Hummer EV Issues Catch Up to Super-Fast “Supertruck”

The GMC Hummer EV was developed at an incredible speed, but it’s becoming increasingly unclear if that was the right move. The vehicle has had its fair share of issues, many involving water getting into the high-voltage battery. Those issues may be catching up to the EV’s development, as only two Hummer EVs have been delivered to customers this year and it’s not clear when the deliveries will start up again. We’ve reached out to GMC for an explanation, but have yet to hear back. We’ll update this post if we receive information.

GMC told the Wall Street Journal that only 124 unsold trucks are affected by the issue and they are working on rolling out a fix. Despite the fact that around 500 vehicles were built in February, sales are still down 98% compared to this quarter last year when 99 vehicles were delivered.

GM has been pushing to electrify their lineup, and the Hummer was the first vehicle to sit on the Ultium Platform. The Brightdrop EV600, another electric delivery vehicle made by GM, is also affected by the same issue. Magna Steyr has been contracted to make the battery enclosures for the upcoming Chevy Silverado EV and GMC Sierra EV. Let’s hope GM engineers get it right this time so that we don’t have any more issues with water getting into the battery enclosures.