Spied: 2022 GMC Hummer EV Truck Prototype Is Towing a Large Trailer in Colorado Mountains

This trailer looks pretty heavy.

2022 gmc hummer ev truck towing trailer ike gauntlet tfltruck
image: @tomdoingfunstuff

Here is a 2022 GMC Hummer EV truck prototype towing a sizable tandem axle trailer up and down Colorado’s mountainous highways. Big thanks to Tom @tomdoingfunstuff on Instagram for sending us these images. You may have recently seen some images of a 2022 Ford F-150 Lightning prototype with a trailer behind near this very same I-70 interstate highway. Now, it’s the new Hummer’s turn to test its towing prowess.

Naturally, hauling a heavy trailer behind you on a mountainous road is a challenge and it uses a lot of energy. In this case, the Hummer Truck is using electricity. GMC estimate the Hummer Truck’s maximum driving range at 350+ miles when unladen. How far will it go with a trailer behind it? We do not know this yet. Based on our previous towing experience with a Tesla Model X – the electric range when towing 5,000 lbs may be cut down to a 1/3 of what it was. Potentially, 115+ miles when towing, but we will have to wait and test this for ourselves.

2022 gmc hummer ev truck towing horse trailer

Electric vehicles have a benefit of putting energy back into the batteries when going downhill using regeneration. This can help a bit while towing in the mountains, but the range will be shorter with a trailer no matter what. The Hummer EV Truck with the largest battery is a heavy vehicle by itself. A recent fleet document listed this truck’s curb weight at just over 9,000 lbs when equipped with all the features.

We will put the next crop of EV truck to the test on the Ike Gauntlet™ – world’s toughest towing test as soon as possible. The #IkeGauntlet is also on I-70, not far away from where these images were taken.

Here is an up close and personal look at the new GMC Hummer EV SUV and all of the technology that makes it work.