Hello Scotty my name is Julio I own a 2017 Chevrolet Traverse LT trim and I bought it used over a year ago and recently the last 4 months when I'm going uphill out of the state on the highway over 65 miles after a while over 40 minutes of driving the car shudders immediately keeping in mind I am over 65 miles per hour going uphill the car shutters and shakes shortly with the message traction control off service Stabilitrak not over the four months I've been going back to the dealer over and over and so far they have changed the brake control module the brake pedal they're recalibrated the brake module and that's it so far it only happens when I'm on the highway going 60 and above the last time the car acted like this was in April they had changed or cleaned the throttle body and they do maintenance check since April my car has that message on the dash what can it be if you can help me please thank you
Forgot to mention the car has 33000 miles and no check engine lights either I got the car at 26k miles just an fyi
The Stabilitrack system is extremely complex. It could be any number of issues causing the problem.
If you have any warning lights, I suggest having the local car parts store scan your vehicle and tell you what codes are present. That will narrow down the issue.