jeff osborne

I bought an led lights strip for the rear of the truck when brand new.i plugged it in and every light went to the left blinker. I unplugged it and never used it again since my trailer light tested shows failure. The local GMC pointed at the led strip and fixated on it as the culprit for months even though it's not connected. I finally got upset with their tunnel vision and literally ripped off the lights and through them in the trash in front of them. I said now what's wing with it? They're answer was*nothing wrong with it*. But trailer lights still not working so something must be won't. They just shrugged and walked away. GMC engineers asked me to bring it back 2 days later because there is obviously still major electronic issues. Still no luck with buy back or lemon law but getting close to an answer I think. I'm betting I won't like the answer but I think I'll get one soon.

It's really a shame. I've been a GMC guy all my life and now to be tested like this is pretty low. I don't know whom to blame more, AutoNation it GMC. I bought it new in December and it's been in the shop more than 79 days! I think the worst thing is that while going through the work orders, I found out that my truck was in an accident and had the front fender replaced! AutoNation didn't bother to disclose that. I found out when I thought about trading it back in on a new one and the sales manager asked me how bad the wreck was. I would never have bought as new truck that had been wrecked. He then told me my truck was worth substantially less because it had been wrecked. I asked that the AutoNation general manager could please call me because I wanted to mitigate this problem locally, just between us guys. Still no call, still in the shop. GMC engineers think they may have fixed the electronic gremlins but that doesn't help the fact that it's been in an accident. I'm not sure what I'm going to do next but this is not over. Good luck with yours! I see that there is a service bulletin it on the trailer wiring controller. Could be your issue.

I escalated this to gm in February. They began the buy back process but because the idiot service manager told them that nothing was wrong, it was closed. Now I've escalated again and filed for lemon law protection. I keep getting errors and 'off' notifications on the dash. Things like Lane keeping off, parking aid off, cross traffic off and others. They are totally random. Sometimes 40 minutes until the first warning and sometimes 40 seconds until the first warning.The warning usually goes away after a minute or so. Who knows how many safety systems are offline. $70k truck and I can't even hook up a trailer or trust the safety systems. Did I mention that the truck was damaged and repaired {new front fender} before I bought it and this was never disclosed! What a dealership.

I bought my Denali in December and it's been in service about 70 days. Service manager called me Friday to say it's fixed. I went to pick it up and he said not fixed because nothing wrong. They had it a month and did nothing at all. I plugged in a trailer light tester and showed him that non of the lights were working. He said, so what. Because of the virus, engineering said it's a non issue and not fixable. Wtf? Now my 5 month old truck with 1500 miles on it is home and still cannot pull a trailer because there are no lights. Thanks GMC for the greasy$70k truck