2021 GMC AT4

[kelsieb]

Had our truck driving 5 plus hours - get home, wait 20 minutes to leave again and the truck will not start.  Long story short - it's been in the shop for almost 3 weeks and they still have no idea what is wrong with it.  Electrical for sure - all systems are out.  Anyone else have any issues with their  AT4's?  8550 miles.  Really sucks.

[fastk9dad]

On 10/30/2021 at 4:41 PM, kelsieb said:

Had our truck driving 5 plus hours - get home, wait 20 minutes to leave again and the truck will not start.  Long story short - it's been in the shop for almost 3 weeks and they still have no idea what is wrong with it.  Electrical for sure - all systems are out.  Anyone else have any issues with their  AT4's?  8550 miles.  Really sucks.

 

How frustrating. I hope they have provided you with a loaner. I find it hard to believe a well equipped dealer cannot identify the issue in 3 weeks. Do you know how many hours they actually have into it? Electrical issues can be hard but if you start with the basics (i.e. what does it take to make the truck start) and troubleshoot that system the other stuff usually falls into place. Lots of mechanics get side tracked and go for grounds, computers, etc right away and fire the parts cannon at things without proper diag and understanding the basics. I wouldn't expect that from a dealer but I'm sure it happens.