2012 Hyundai Sonata Hybrid transmission problems

Filed Oct 21, 2026 · Engine, Transmission · IN

1. It spun a main rod bearing. It is at the Hyundai Dealership in Evansville, In. 2. Loss or power in roadway. 3.Yes it has, by the dealership. 4.Yes, by the manufacturer & the Hyundai Dealership. 5. Yes, as I backed out onto the street all the dashboard lights came on and buzzers and alarms started going off. When I finally got the car in gear then I was able to drive it about 25 feet back into the driveway and I turned it off. I had to have it towed to the dealership and they would not stand behind the warranty for the engine & transmission.

Filed Jul 24, 2026 · Transmission · MN

While driving and everything is going along fine it will suddenly jerk and make a sound as if I've been hit behind. I'm not sure if it's part of the detached shift cables or transmission or something else. Sometimes it will jerk violently while going uphill also.

Filed May 14, 2024 · Engine, Fuel system · 145,000 miles · NM

The contact owns a 2012 Hyundai Sonata Hybrid. The contact stated that while driving at an undisclosed speed, the vehicle lost motive power and the low battery warning light illuminated. In addition, the contact heard a rattling sound coming from the engine before the engine seized. The vehicle was towed to the dealer where it was diagnosed with a failed hybrid system and that the hybrid system needed to be replaced. The contact was also informed that the transmission was not the original transmission, and the cooler was damaged. The manufacturer was not made aware of the failure. The failure mileage was approximately 145,000.

Filed Apr 29, 2024 · Transmission · 76,000 miles · TX

The contact owns a 2012 Hyundai Sonata Hybrid. The contact stated that while driving at an undisclosed speed and depressing the brake pedal, the vehicle lunged forward. The vehicle was taken to an independent mechanic and diagnosed with automatic transmission failure. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 76,000.

Filed Aug 11, 2023 · Engine, Transmission · AL

The contact owns a 2012 Hyundai Sonata Hybrid. The contact stated while driving at various speeds, the message "Pull Over. Stop the Vehicle" was displayed, and the vehicle failed to respond upon depressing the accelerator pedal. The contact veered to the side of the road and turned off the vehicle. The contact stated that the vehicle became drivable after waiting 30 minutes to an hour. The contact stated that the failure had been recurring while driving. Additionally, the contact stated that while reversing and depressing the accelerator pedal, the vehicle jerked, made an abnormally loud sound, and failed to respond. The contact shifted into park(P) and shifted back into reverse(R), and the vehicle jerked and responded. The contact stated that while driving at various speeds and depressing the accelerator pedal, the vehicle jerked and hesitated to respond. There was no warning light illuminated. The contact stated that she had taken the vehicle to an independent mechanic, where a diagnostic test was performed. The contact was referred to the dealer for assistance. The dealer and the manufacturer were not notified of the failure. The vehicle was not repaired. The failure mileage was unknown.

Filed Jul 10, 2023 · Engine, Transmission · 55,000 miles · CA

The contact owns a 2012 Hyundai Sonata Hybrid. The contact stated that while driving at an undisclosed speed and attempting to accelerate up a hill, the vehicle inadvertently lost motive power. Several attempts to restart and jumpstart the vehicle failed. The hybrid system warning light was illuminated on the instrument panel. The vehicle was towed to the residence and later towed to an independent mechanic, who determined that the engine had failed due to metal shavings in the engine oil. The vehicle was not repaired. After investigating the failure, the contact related the failure to the federal safety agency Campaign Number: 20V746000 (Engine) however, the VIN was not included. The manufacturer was not notified of the failure. The failure mileage was 55,000.

Filed Jun 10, 2021 · Fuel system, Transmission · 130,000 miles · FL

The contact owns a 2012 Hyundai Sonata Hybrid. The contact stated while driving at various speeds, the vehicle hesitated and stalled while depressing the accelerator pedal. There was no warning light illuminated. The contact had taken the vehicle to multiple independent mechanics who were all unable to diagnose the failure due to no warning lights illuminating on the instrument panel. The contact then had the vehicle towed to the dealer where the mechanic was also unable to diagnose the failure. The mechanic informed her that the transmission needed to be replaced. The vehicle was not repaired. The failure mileage was approximately 130,000.

Filed Oct 13, 2020 · Engine, Transmission · 117,000 miles · TX

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 the vehicle was picked up at the dealer and while leaving the dealer, the vehicle stalled. No warning light was illuminated. Additionally, while depressing the accelerator pedal, the vehicle hesitated and stalled. The vehicle was taken back to the same dealer and the contact was informed 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.

Filed Oct 16, 2019 · Engine, Transmission · 150,000 miles · IL

Tl* the contact owns a 2012 hyundai sonata hybrid. While driving, the transmission failed and the vehicle stalled without warning. The vehicle was towed to bob brady hyundai (4025 e boy rd, decatur, il 62526, (217) 876-3800) where it was diagnosed that the transmission needed to be replaced. The vehicle was not repaired. The contact stated that the vehicle was taken approximately seven times to the same dealer, but the cause of the failure could not be determined. The contact stated that the dealer previously replaced the electrical component and the engine. The manufacturer was not made aware of the failure. The failure mileage was approximately 150,000. *dt

Filed Jun 21, 2019 · Transmission · 150,225 miles · CA

Tl* the contact owns a 2012 hyundai sonata hybrid. While the gear was in park with the brake pedal depressed, the vehicle cautioned to move. Once the contact turned the vehicle off and on, the park warning indicator illuminated. Riverside hyundai (8001 auto dr, riverside, ca 92504, (951) 643-5065) was contacted and informed the contact to call the manufacturer since the VIN was not included in a recall. The vehicle was not diagnosed or repaired and the failure recurred. The manufacturer was made aware of the failure and informed the contact to call the federal safety agency to file a complaint. The failure mileage was approximately 150,225.