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2022 GMC At4 2500 service 4wd

By Blue408 C
February 1, 2022 in 2020-2026 Silverado HD & Sierra HD

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Blue408 C

Posted February 1, 2022

Posted February 1, 2022

I have a 2022 GMC At4 2500 and I use it for work and the service the 4wd light comes on and 4wd does not work. The parking brake is beginning applied when this happens, after letting the truck sit for a few hrs it goes away. I take it to the dealership and it always works well its there and there are no codes so nothing they can do. I have seen other posts about this but never seen anything fix this issue?

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