When I am driving on (usually) wet or slippery pavement the traction control light will go off in tandem with engine light. The messages will alternately read service traction control and reduced engine power. Upon turning the car off for a while, the traction control light will be off when the car is re-started but the engine light will stay on for a day or so and then go off. It is a 2010 Impala that I bought at a dealership that was a rental car. Is anyone else having this problem and did they get it resolved? The dealership can't seem to find the problem.