The contact owns a 2014 Hyundai Sonata. The contact stated that the keyless start functionality did not perform as intended, which resulted in carbon monoxide spreading throughout the residence. When the vehicle was purchased, the dealer informed the contact that the keyless start system in the vehicle had an idle timer that was supposed to shut the vehicle off when idling for a period of time. The contact required medical attention and the physician diagnosed that the contact had carbon monoxide poisoning. The vehicle was not diagnosed. The manufacturer was not made aware of the issue. The approximate failure mileage was 11,485. MA 10/16/15 the consumer stated he was told, since the vehicle had a start button, if left in park, it would shut off on its own. Updated 12/10/15.

- Pittsburgh, PA, USA

Trunk opens spontaneously.

- Jacksonville, FL, USA

1) the miles per gallon reading is unpredictable its advertised to give around 27 combined but I have never reached that 27 mpg, though I drive in low RPM ) the vehicle does not slow down for long distance even after releasing the gas pedal resulting in abrupt braking in lieu of gradual braking in stop & go traffic 2) the drivers side seat malfunctioned at around 15,000 miles 3) the car has a leak from 1000 miles onwards but the service center refuses to help, I called Hyundai they advise me to call the service center, I feel as if after a valuable investment there's no customer satisfaction or customer redressed process. 4) lack of corporate service department that can answer warranty related questions.

- Miami, FL, USA