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An ongoing GMC Hummer EV stop-sale order has owners looking for answers — especially since there appears to no fix in sight.

The all-new Hummer EV made big waves when General Motors announced the return of this iconic nameplate with cool features like Watts to Freedom and Crab Walk. But this ongoing unresolved issue is giving the electric pickup truck a black eye.

While a recall on a completely new vehicle like the Hummer EV isn’t surprising, the nature of the recall is. Also, the fact people who’ve paid for their trucks but haven’t taken delivery can’t drive their new Hummers home is, well, frustrating. There has been a stop-sale order in place for more than a month because the high-voltage battery enclosure hasn’t been properly sealed.

What’s going on with the GMC Hummer EV stop-sale order?

Thanks to our friends at GM-Trucks.com, we know a little more about this issue.

First, it was just over a month ago GM notified dealers over a possible defect with the Ultium battery, specifically that there was a “battery-sealing issue” affecting both the Hummer EV and the Bright Drop all-electric commercial vehicles.

The dealers were instructed to not deliver any new Hummers to customers even if the truck was already at the dealership.

So, what’s the big deal? Batteries and water don’t mix, and just a small amount of water can cause one of those electric vehicle fires you’ve seen on the news.

Thankfully, the 797 affected vehicles did not include fires. Instead, in the dealer notification, GM states: “In two of the cases, the vehicle would not start. In the third case, the vehicle lost propulsion while driving. A loss of propulsion while driving can increase the risk of a crash.”

According to GM-Trucks.com, GM has said that customers who’ve already taken deliver of their vehicles are safe to drive them — just as long as they don’t wade through any water deep than 24 inches.

There should be an announcement soon on what GM plans to do about the affected trucks and when customers who haven’t taken delivery yet can do so. There should also be a timeline when the stop-sale order can be lifted.

The bottom line

While this affects less than 800 vehicles and might not seem like a big deal, it’s a very big deal to customers who’ve shelled out more than $100k for a vehicle that can’t leave the dealer lot. These customers are stuck in a weird limbo situation, and unfortunately, there are more questions than answers at this stage.

With winter weather starting to move in, it will be interesting to see if this issue gets more serious since snow is essentially water and driving down a snowy road would certainly seem to raise questions about driving through any water deeper than 24 inches.

Tim Esterdahl

Automotive Journalist Tim Esterdahl has been a lover of trucks and SUVs for years. He has covered the industry since 2011 and has pieces in many national magazines and newspapers. In his spare time, he is often found tinkering on his '62 C10 pickup, playing golf, going hunting and hanging out with his wife and kids in Nebraska.

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