As others have mentioned, I have had both problems starting the vehicle (the car could not be started on two occasions so far, despite having adequate fuel and a charged battery), and with the rear of the car swinging out when traveling over a bump or on slippery road conditions (even at speeds as low as 35 mph, there is a noticeable kick from the rear of the vehicle, which has worsened with time). For both cases, the dealer was unable to find an issue, and/or said any kind problem was "within tolerance."

- Lakewood, OH, USA

The contact owns a 2013 Hyundai Elantra. While driving 45 mph, the accelerator pedal was disengaged but the vehicle continued to drive at the same speed. The vehicle was taken to the dealer. The technician advised the contact to spray gum out inside of the fuel injection throttle plate. The manufacturer was not made aware of the issue. The failure mileage was 98,000. Updated 2/9/15 updated 9/8/2017

- Forest Hill , MD, USA

While turning into a parking spot. My car suddenly jumped and accelerated and slammed into a concrete barrier. The air bag also did not deploy.

- Lexington, KY, USA

On 8/11/13 the 2013 Hyundai Elantra that was purchased 6/3/13 at the fred beans dealership in doyelstown, pa. Unintentionally accelerated and crashed into a concrete wall in the parking lot at king of prussia mall in king of prussia pa. The car was turning into a parking space and when the gas petal was applied the car accelerated full speed into the wall. This is the second time this has happen to a car that was only 9 weeks old. It had happened in our driveway 4 weeks prior to the collision on 8/11/13, but the car was brought under control and we assumed it was just not being familiar with a new car. The car was immediately towed to the dealerships body shop for inspection and a claim was opened with Hyundai customer assurance. The car was inspected by an independent inspector several weeks later and after 6 week we have received a letter stating that there was no failure on the manufacturers part and there was nothing they could do. I have requested testing results and documentation from Hyundai and I was told it was classified, so I asked for a list of tests performed and it cannot be given to us. We have received several letter from Hyundai, none of which had a persons last name or any name at all. I have had the car's body work repaired and have tried to trade the car into the dealership for another new car but the dealership will require another substantial down payment which makes this option unfeasible. The dealership has not had any correspondence with the manufacturer and has requested I formally ask for some monetary relief towards the new car replacement. I have made several requests and have gotten a final "no" decision from Hyundai. The car has and still sits at the dealership and I will not allow my daughter to drive an unsafe an undocumented car. Please let me know how to proceed.

- Blue Bell, PA, USA

Ran out of gas despite the gauge showing 42 miles left (about 1.5 gallons). Walked to a station and got a gas can; put a couple of gallons in, started the car, and the meter started dropping dramatically, going from 112 miles remaining to 104 to 98... all the way down to 82 miles remaining before I even started driving. Drove about a quarter mile, and it fell another 3 miles. Don't know yet if the car if the problem is with fuel injection, the gauge, or some issue with the tank itself (air/water leaking in or gas leaking out, etc.). problem occurred the day after bringing the car into the shop for a separate problem. My car is 6 weeks old, and I have broken down two days in a row just driving to work.

- Rosenberg, TX, USA