The contact owns a 2013 Hyundai Sonata. While parked on a slight incline, the vehicle began to roll backward. The vehicle had a push button to start the engine and allowed the contact to shut the vehicle off while the vehicle was not in drive. The contact entered the vehicle and applied the brakes and was able to stop the vehicle. The vehicle was taken to the dealer for diagnostic testing. The technician stated that the vehicle was operating as designed. The contact stated the vehicle should have had a safety feature that would not allow you to shut the engine off unless the gear was in park. The vehicle was not repaired. The approximate failure mileage was 3. updated 12/05/12

- Aventura, FL, USA

Purchased 2013 Hyundai Sonata gls at streetboro Ohio Hyundai dealer new in mid June 2012. Vehicle seemed ok but at about 1500 miles idle became rough particularly at idle in drive at lights and stops. Took in to dealer and was told after 4 days in shop that problem was familiar to the dealer and an engineer was being called in to figure out the solution as no codes were stored in computer.I left the dealer after being told car is within Hyundai specs but was running strange. The dealer seems to be avoiding doing anything to admit there is a issue and refused to allow a service tech to ride along with me to experience the problem. They also refused to let my salesman go in a newer model with me to see if any other vehicles had same issues.I wrote to Hyundai corporate and was given a list of other dealers to go to.as the problem has begun to get worse the idle will now rev and then decelerate the vehicle when coasting and I can imagine what this braking action will cause the vehicle to do as the weather becomes worse and snow appears. This seems to be a growing problem with the Hyundai models from the recent Hyundai forums posts.

- Cuyahoga Falls, OH, USA

A lady with a brand new 2013 Sonata turned off her car in a parking lot without putting the transmission into park. While she was not looking and doing something else, the car began to roll forward and eventually crashed into the side of my brand new car. There was no electronic warning that she needed to shift into park!

- Livonia, MI, USA