First time poster.
I’m having a lot of issues with my 2010 GMC Yukon XL Denali. I’ve taken it to 2 different GM dealerships multiple times and every fix they do does not fix the problem.
2010 GMC Yukon XL Denali
I’m the original owner
I have kept up with all maintenance, including just recently completing GMs 100K service
For years, I have used E85 and have now switched back to premium conventional gasoline
For the past 10 months, I get this very strange intermittent issue that comes up while driving:
Vehicle starts hesitating
Difficult to accelerate
Engine light is on
ABS light is on
Traction control light is on
Service stabilitrak - text on display
Service traction control - text on display
Park assist off - text on display
Door locks lock and unlock on their own
Transmission will not shift
When this issue is occurring when I’m not driving, it results in the car being unable to start. And I mean totally dead usually. No lights, no sounds no turnover of the engine. After turning the ignition anywhere from 10 to 30 times with nothing happening, I may be lucky to get it to start, but sometimes it will die out again, or allow me to drive it with all of the issues above.
The dealerships have not been able to figure it out.
They have replaced the body control module, battery cables, suspension control module, and now it is back there again where they are going to replace the ignition switch, but with no guarantees on if this will fix it and they were clear on telling me that they have never seen anything like this. I’m approaching $4000 in Repairs with no solution.
I do have to say though that after replacing the suspension control module, the symptoms are not as severe, but still mostly exist.
Thanks so much in advance.