I have a 2014 Silverado LTZ Z71. I have loved my truck since the day I had the keys handed to me, that was until about 6 months ago. I got back from a deployment and about a month later the truck started acting weird. First I noticed my headlights dimming while driving. Driving to church one day I had my cruise control on at 55 mph, went to change lanes and my turn signal turned off my cruise control. I did it 3 times to make sure I wasn't just seeing things. About 20 minutes later my radio cut off, then my air conditioning and then my whole dash turned off, almost like the truck shut off. A second later everything came back on. At this point I was nervous to drive the truck so I went to park, right as I slowed down a SERVICE STABLITRAK popped up, all my lights started flashing, got a LOSS OF STEERING and then the truck shut off. Put it in park. Started right back up with now problem. No check engine light, no codes thrown almost like nothing happened.
Took it to a GMC dealer that next Monday. They did some recalls on the truck and messed with the computer about. Dealer drove it and couldn't get the truck to act up. So I thought the recall fixed it.
A month later. Driving down my road at about 35 mph truck shut off. No warning. No flashing lights nothing. Coasted down the road and then put it in park. Turned the truck back over and it gave me a SERVICE STABLITRACK and a LOSS OF STEERING. This time I took it a Chevrolet Dealership. They also could not find anything wrong.
A few days later. Driving through Starbucks I got a SERVICE STABLITRAK. Instead of pulling out on the highway I pulled into a parking space to be safe. Before I could pull all the way in I got a LOSS OF STEERING light and the steering wheel locked up. Everything flashed, the doors locked and then the truck shut off. Truck wouldn't unlock or do anything when the ignition was turned for about 3-5 minutes. At this point I was blocking traffic and was locked in my truck. Unsafe and embarrassed with my family in the truck. This time it gave me a CHECK ENGINE light at least.
Took it back into Chevrolet that next Monday. They followed the check engine light codes and messed around with the engine wire harness. They called me the following day saying the truck was ready to be picked up and hopefully this will never happen again.
A few months later. Got a SERVICE STABLITRAK as I was about to pull onto the highway. I stopped, pulled my phone out and pulled into the nearest parking lot. I caught everything on video. The head lights dimming. The steering wheel locking up. The doors locking by themselves and then finally the truck shutting off. Along with starting the truck back up and it acting like nothing happened.
I took it back into Chevrolet that next day. Told them what happened and gave them the video in hopes that it will help them fix the truck. Given that every little bit of info could help at this point. They called me 2 days later saying they checked everything that they were supposed to and couldn't find anything wrong. Told me it was ready for pick up.
Unfortunately this time I was done. I told them I was not picking the truck up until they could tell me for certain that they truck wouldn't shut off again. I contacted GM customer service and stated my problems and my dissatisfaction. They told me they know that I am worried for my safety and are sorry for my frustration but there is nothing they can do.
I am disgusted with Chevrolet. I have always owned Chevy to the point I pretty much preached their good name. After this combination of quality in the truck and quality in customer service, I will never own another Chevrolet after this.