My traction control light has been flashing briefly when I first apply light throttle from a stop...No, the tires are not spinning, but I can hear the traction control system activate briefly as the light comes on.

Important note = I have a Diablew tune on the car that disables the traction control system. I have had this tune for well over a year, but the issue has only been happening for a few months.

I just had new tires installed today, but the same problem is there. Happens at almost every stop/go.

I have also been getting Service Traction Control System and Service Brake System warnings on occasion.

Again, light throttle from a dead stop, no tire spin, traction control light flashes...any ideas?

 

Possible wheel bearing problems. Do your rims have any play in them

 

Wheel bearings were my first thought, so I ordered a set of Timkens last night. This was right after the Service Traction Control and Service Brake Assist warnings came on for the 3rd time in less than 10 miles of driving

I'll let you know if that was the problem...I have to try something, because the issue is getting worse very quickly.

 

my light will randomly flash. no rhyme or reason and if i shut the car off it usually goes right away.

 

Mine has quickly gone past "random" to "always". Turning off the car and restarting will clear it, but is certainly not addressing the real problem...

We shall see if the new Timkens do the trick. I would have expected the factory wheel bearings to last more than 37,000 miles...thanks GM.

 

On the driver side of the engine bay, there is an electrical connection that may have come loose. It attaches near the ABS. Mine came loose after a minor accident (head-on into a wall at 70 MPH). After I cleaned the contacts and clicked it back into place, it worked perfectly. Good luck.