Harley Roberts

My truck is going in on Saturday to GM, so I’ll definitely bring this up with them. Thanks fo the feedback I really appreciate it.. I haven’t had any brake issues with mine yet..

Hi Shane. I have a 2020 GMC AT4 Duramax 6.6 litre. I bought it last June 2020 and today my truck done the same as yours. I tried starting it with the OnStar app and with the key fob but no luck. I tried a few times and then gave up. I tried again about 5 hours later and low and behold it started. Very confused about it. Have you heard of anyone else having this problem and did you have any luck finding out the problem? Hope to hear back Harley