My car has failed to accelerate after being stopped. The first time, I was attempting to enter a shopping center parking lot by making a left turn across a busy road. When I engaged the gas pedal, the car finally got to 5MPH when I got into the parking lot. It was unsettling sitting in the road watching cars coming to you!! Then it did it again last week at the entrance to our complex. That time, I just turned it off and restarted it and it was fine. If it had not moved, I would have had the entire complex entrance blocked. I took it to Mercedes-Benz of Athens on 7/8 for 10,000 mile service. I informed them of the issue. The outcome this was "we unplugged a few things and hopefully this resets things". If you have the issue, bring the car in again! WOW!!! Is this before or after someone broadsides me? I think a vehicle that can not be depended on to accelerate when needed is dangerous to drive!

- Athens, GA, USA

While driving on the turnpike without warning my steering locked and I lost control of my car.

- St. Petersburg, FL, USA

On a number of occasions, I have received an auditable warning, and a red light on the dash that disappears as quickly as it happens. I cannot contribute any cause for the warning and there isn't any residual information about the source of the warning.

- Arlington, VA, USA