2021 GMC Sierra AT4

[Maria G Martinez]

We own a 2021 GMC AT4 and on our way back from our vacation trip to Texas and Mexico we started having issues. It all started with a loud cranking noise and after filling the gas tank, the service ESC,  service parking breake, parking light with a wrench underneath and a flashing engine icon came on . It said,  park assist disabled, drive with care. Every once in a while it kind of wants to stop but it doesn't. Its driving rough. We are in a different country, praying we make it back to USA. We chose this vehicle so we wouldn't face any car issues and we are very disappointed.  We pray that GMC can have some answers for us and takes care of the problems that many of us are facing from what I read. This is a brand new vehicle and we shouldn't be facing any problems. 

[camjr]

If you're running one of the V8 gas engines (5.3 or 6.2), it sure sounds like one of the dreaded lifter failures.