I got pulled over last week. 66 in a 55. (The speedometer in my old Blazer is 3.5-ish off. Lol)
The guy liked my truck and we talked vehicles a bit. He has a Colorado of this vintage and has had nothing but “computer” issues. I was very disappointed in to hear this. He said it’s gone once the warranty is up.
I hope yours is more reliable than the ones in our fleet at work. They spend an unbelievable amount of time in the shop for manufacturing defects. Wiring harness, electronics, and random engine shutdowns while driving on the highway.
I may get flamed however, I refer to these as a defective product of Shanghai government motors.
Are you sure you're referring to the new VSS T platform? Or the old GMT? I do this for a living...this is nothing familiar with this new platform. I'm not calling you a liar by no means but if you say your whole fleet is having these issues we would be seeing more of this in the field.