The contact owns a 2012 Hyundai Sonata. The contact stated that while attempting to start the vehicle, the vehicle briefly hesitated before starting. After starting the vehicle, the vehicle returned to normal functionality, but the failure became a regular occurrence. The check engine warning light was illuminated. The vehicle was taken to an independent mechanic, who diagnosed a failure with the engine. The contact was advised to take the vehicle to the dealer for assistance. The vehicle was not repaired. The manufacturer was notified of the failure but provided no assistance. The failure mileage was 137,000.