Hello ES300 Forum. Yesterday i was parked on a steep incline, so i engaged my parking brake. When leaving the steep incline, i forgot to release the parking brake, and drove for about 20' before i realized the brake was still on. Does anyone know what kind of damage i might have caused? A freind of mine had previously made the same mistake with his ES, and he had to get a synoid(sp?) replaced. In his case, his car would refuse to accelerate, with only the RPMs increasing/decreasing. My car does not exhibit any problems at the moment.