Car has a grinding noise and hesitates when taking a left turn from a stop. only happens intermittently at this point. feels like the traction control coming on for no reason. (but then i am not a mechanic) no indicator lights on the dashboard come on when it happens. it is dangerous because the car hesitates and pulling out into traffic this is an uncomfortable situation. sometimes it may happen 5 to 6 times a day and then it stops and doesn't happen for days or weeks again. does not seem to be related to weather conditions as it happens at all different times. brought it to the dealer and they cannot diagnose the issue because it doesn't happen when they drive it. they checked the car and cannot find a problem. told to bring it back if the problem persists and gets more frequent. *tr