Two problems related to transmission failure have been reported for the 2012 Hyundai Sonata. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2012 Hyundai Sonata based on all problems reported for the 2012 Sonata.
Tl- the contact owns a 2012 Hyundai Sonata hybrid. The contact stated that while driving, an unknown warning light illuminated indicating to stop the vehicle do not drive. The vehicle was taken to clay cooley Hyundai of mesquite, 16230 lyndon b johnson fwy, mesquite, TX 75150, and was diagnosed that the fuel pump that go to the transmission failed and was replaced. The contact stated that when the vehicle was pick up at the dealer and was leaving the dealer, the vehicle staled. No warning light illuminated. In addition, the contact stated that the vehicle had hesitated to stalled and while depressing the accelator pedal, to accelarated and was taken back to the same dealer and was diagnosed that the transmission needed to be replaced. The vehicle was not yet repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 117,000. Aw.
While driving in traffic car began to jerk and lose speed though the engine was running. The car stopped in the middle of moving traffic. Transmission fluid spilled out profusely. Transmission was replaced but started to slip again the same day I picked it up after new (remanufactured) transmission was installed by the Hyundai dealer. Prior to this transmission issue, the alternator in my car failed while driving in the middle of moving traffic. This complete transmission failure occurred shortly after a new engine was installed because the original engine seized and failed prior. Alternator was replaced. The newly installed alternator failed again. A new alternator was once again installed. I am now having similar electrical problems yet again and there is a current concern that the vehicle may possibly stop suddenly and hazardously again while in motion.