I just has the same issue for the last couple of months. It seems to only happen when it is cold out. When I start it in the morning the car runs rough and has a tick in the motor, The engine light is flashing and the traction control light is on. I turn the car off and restart it about 3
to 4 times before it goes away. I just sent it into the dealership even though the lights were off. They told me the #4 cylinder was misfiring but everything looks like everything worked itself out..... Well until the next time it happens. I have also contacted corprate GM and
mentioned this very blog and
