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2020 Chevy 3500 DRW locked up while towing

This topic contains 0 replies, has 1 voice, and was last updated by  Steve Mac 1 year, 5 months ago.

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    Steve Mac
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    My 2020 Chevy 3500 DRW locked up twice while towing my 5th trailer at 11,000. 58,000 miles on the truck with no issues to-date.
    While driving up a mountain highway at 50 mph. Rear wheels locked up and left 6-8 ft of skid marks. Truck then released and I was able to get it off the road. Crawled under and see nothing loose or leaking. Let the truck sit for probably 10 minutes running while checking. Slowly took off again and no issues at 45 mph and below. 2 miles down the road it happened again with same results. If I had to guess on the 10 speed transmission I would think 6 or 7 gear.
    Let it sit and again checking, nothing. Quick search of the web with nothing except torque converters. I received no check engine lights.
    Turned around and drove 45 mph and under back down the highway. No issues again. Made it home on country back roads. Had one steep pull out at 35 mph with no issues.
    We travel full-time and I baby this truck because I need it to last. Any thoughts

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