Three warning lights on my 2010 1.5l automatic Imreza sometimes stay on after the engine is running or they sometimes come on when the engine is running. One light indicates a problem with the engine, another relates to the anti-skid mechanism, and the third (which winks) relates to the cruise control. My local garage man (who is not a Subaru specialist) cannot find a problem, and the performance of the vehicle does not seem to be affected. Is there a real problem or is it a faulty sensor of some sort?