The contact owns a 2014 Hyundai Santa Fe. The contact stated that while driving approximately 30 mph, the speed suddenly decelerated to approximately 20 mph and failed to accelerate when engaging the accelerator pedal. The vehicle was taken to the dealer, but no information regarding the failure was available. The manufacturer was not notified of the failure. The failure mileage was 11,080.

- Bronx, NY, USA

This is a transmission problem shifting 1-2nd gear, as we slow down to enter our garage and wait for door to open, the car lurches forward with huge amount of force, almost as if we are hit from behind, then it goes into gear and proceeds. Happens almost every day now. I read many consumer blogs saying this is an issue for the Santa Fe models. Definitely a transmission issue.

- Fallbrook, CA, USA

Failure to accelerate from a full stop with accelerator petal partially or fully depressed. Malfunction occurred three times and persisted each time for between one and a half mile on two occasions and for one half mile on one occasion. On July 11, 2014 automobile was left with dealer for warranty repair of the malfunction and has remained there as of this date, August 3, 2014, with no repairs having been done. This is a very serious malfunction and could quite easily result in an accident with serious safety consequences. This is a new vehicle with only 1100 miles on it. The malfunction has occurred randomly during routine driving followed by a return to normal operation of the vehicle after driving the distances noted above.. all three instances occurred after making a left hand turn from a full stop. Vehicle slowly increased speed without any appropriate response from accelerator position. Driver had petal fully depressed in one instance and tried flooring and pumping the petal in two others with no response.

- Valley Mills, TX, USA