2011 Hyundai Sonata Powertrain & Transmission Problems

Good day, please note that most of my communication with Hyundai has been over the phone. I sent one an email shortly after the event, and after following up on the phone, I received this following string separately. I can forward you more along the way, but Hyundai is in possession of the call recordings. I was hoping they would cover my repairs, my engine had a lifetime warranty, but during this process I learned that there was a recall for this car that I was never aware of as the new owner. I needed a software update to get any repairs covered. Please reach out to me for more info!

on [XXX] iwas driving coming back home from [XXX] by exit [XXX]. the engine turn off and didnt turn back on. i had to get a town to take me out of the highway and pay $141.00 becide that my engine seized. now i dont have a car and the car didn't gave me any notification that something it was going on with the engine. if i had any light on the car i wil take it to the mechanic, know i loss my source of income because hyundai problems with engine. and to get another engine it cost $5000. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Not sure . The car has been regulaurly maintenced and one day the emgine complagely seized up going down the road .

While driving on the highway, the motor all of a sudden lost all power and the brakes locked causing a collision. I've never had any problems until then. My car was in tip top shape with no issues until the engine / motor decided to defect. Hyundai she recall this engine issue before someone gets killed

The affected component is the engine/rod bearing (Theta II 2.4L). My 2011 Hyundai Sonata stalled and the engine locked up twice in live traffic (March 2025 and July 2025). The vehicle is available for inspection if needed. This created a serious safety risk to me and others on the road, as the stall occurred on [XXX] at highway speeds. This failure could have been catastrophic had it happened on the DC/Baltimore Beltway or another high-traffic roadway. Hyundai’s system shows Recall 132 was marked complete at very low mileage (around 32,000 miles), but my vehicle later developed oil consumption and stalling consistent with rod bearing failure. Capitol Heights Hyundai noted a warranty pre-authorization (PA) in March 2025 and told me Hyundai needed my mailing address “for the claim,” but later said it was a typo and that no record exists. The dealership charged me for a diagnostic but did not inspect the vehicle for rod bearing failure, despite symptoms consistent with Recall 132. Annapolis Hyundai, where the car was purchased as a CPO, has admitted they have no documentation that Recall 132 was ever performed (no repair order, mileage, or technician notes). Yet Hyundai’s system shows Recall 132 marked “complete.” Without proof that the KSDS software or bearing inspection was done, I belive this recall should be considered open. Hyundai Consumer Affairs has stated that I must pay for towing and diagnosis before they will investigate, with possible reimbursement later. This conflicts with federal law (49 U.S.C. § 30120), which requires recall diagnosis and repair at no cost to the consumer. Prior to the failures, my vehicle had a history of oil consumption and “no oil on dipstick” findings, which are known precursors to rod bearing failure. No warning lamps appeared before the stalls. I am requesting NHTSA’s assistance in requiring Hyundai to provide documentation or reopen Recall 132 and perform a no-cost inspection/repair to ensure this vehicle is safe to operate INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The gear shift on its own jumps from automatic to manual mode

10/31/23 Car lost power on freeway. Dash lit up and stalled, I took picture brought to dealership. Could not find any issues or codes. 11/12/23 Driving on Pacific Coast Highway car started making knocking/ticking noise. Pull off to a side street and car hesitated and check engine light came on. Had it towed to dealership. Still waiting on assessment. Was told will take 2-3 days due to backlog. Clearly a known Engine issue dating back to recall campaign 132 Engine/inspection/replace. (I brought into dealership on 2/9/16 to perform checks on the 132 campaign - shows completed).

The contact owns a 2011 Hyundai Sonata. The contact stated while his wife was driving 10-15 MPH, the vehicle jolted, and the transmission slipped into 1st and 2nd gear. There was no warning light illuminated. The contact stated that his wife veered to the side of the road, shifted into neutral(N), and then shifted back into drive(D), and the vehicle responded as needed. The dealer was notified of the failure and advised the contact to tow the vehicle to their location because the vehicle was unsafe to drive. The vehicle was not diagnosed nor repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 82,000.

On June 17, 2023, while during this car suddenly it started losing speed, pressing accelerator did not help. I stopped the car and restarted, it drove for another 400 yards and stopped again. I checked with my obd2 and it gave a code of misfiring third cylinder. Car had a recent replacement of engine under warranty by Parks Hyundai of Gainesville as previous engine had started smoking in 2011. My recent calls to the dealership did not result in any return call from them. Car is standing at my house for the past two weeks. I am really SCARED to drive this car. Also fed up with the dealership which does not care even to return my calls.

My Hyundai keeps jumping out of gear it's like the tray is sliding but it don't have one

car not fully shifting into park and will not allow key to be released from ignition

The contact owns a 2011 Hyundai Sonata. The contact stated that while driving at an undisclosed speed with the vehicle in Drive Mode, the transmission erroneously shifted into the sport mode. During the failure, the gears failed to shift as needed, and the vehicle would not accelerate while depressing the accelerator pedal. After restarting the vehicle, the failure had self-corrected but would eventually the failure had recurred. The cause of the failure was not yet determined. The manufacturer and local dealer were not notified of the failure. The failure mileage was 110,000.

drove vehicle down the street when knocking noise started, check engine light turned on, then immediately stalled. Car will not start or drive now. called hyundai recall campain and they gave me a case number of #203-102-81 with recall campaigns that could fall under 953, and or 132. There may have been an issue with the connecting rod bearings wwith a cyclic knocking noise from ther engine

We broke down in the middle of the highway where there wasn’t a emergency lane available. A another vehicle struck the car in the rear .

when driving randomly the cars engine will rev really high while pressing the gas pedal but the car doesn't move. After a little while the car eventually makes a loud clunking noise which shakes the car and typically causes the tires to spin. It seems to happen when the car is trying to decide whether to switch the gas engine or back to EV mode. This has been happening for a long time an even after the engine was replace under the recall. This is a safety issue that causes major concerns for myself an passengers. Also it happen when turning onto highways or exits which at high speeds there is a high likelihood of causing an accident. I have reported this to Hyundai several times but they cannot figure out the cause but rather keep trying different things an charging me. the car also seems to burn oil fast which doesn't make any sense being that its a newly installed engine.

I was driving my vehicle and a warning light indicating hybrid system charging failure warning. The vehicle had intermittent power problems and would not move appropriately in relation to the pushing the gas pedal. It would not go then would jerk forward. I was finally able to pull over to the side of the road safely. I turned my car off and when turned back on the error message failed. This happened on two other occasions. Later there was a whining noise when shifting into second gear. I took in for service and the hyundai dealership told me the transmission needed to be replaced. My safety and others were at risk due to loss of ability to drive the vehicle appropriately due to loss of power.

The contact owns a 2011 Hyundai Sonata. The contact stated that while her husband was attempting to shift from drive to reverse, the gear shifter seized in the drive. The contact stated that the shifter cable had detached. The contact's husband informed the contact that a pin was missing from the shifter cable. The contact's husband opened the hood and shifted the gear manually with someone seated in the driver’s seat. The contact's husband was able to drive the vehicle to their residence. The dealer was made aware of the failure but informed the contact that the VIN was not included in a recall. The vehicle was not diagnosed nor repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 24,000.

My daughter and a passenger were driving our car at night October 3, 2021and the entire car suddenly and without notice began shaking and convulsing, became non responsive and all the electrical components and the engine went dead including inside lights, brakes, power steering and lighting system. It was nighttime and the traffic was medium but she was able to ease the vehicle onto the shoulder without incident but had a few close calls as drivers eased around her. They could have been severely injured by the traffic as it attempted to get past her on this narrow two lane road. The vehicle was towed to a mechanic who diagnosed that the engine had blown, was seized and locked up. He also mentioned that there is a recall for the 2011 Sonata and numerous problems such as this have been reported. We had no idea there was a recall on this vehicle. We are very concerned and upset that this incident could have caused severe injury to our daughter, her friend and other drivers around her. There were no prior notifications or signals with the car having any problems prior to this incident.

The contact owns a 2011 Hyundai Sonata. The contact stated that after the vehicle was stopped at a red light, the contact depressed on the accelerator pedal, but the vehicle did not accelerator properly. The contact was able to pull over on the side of the road and had the vehicle towed to an independent mechanic. The mechanic informed the contact that the failure was related to the transmission, but the vehicle was not fully diagnosed. The vehicle was not repaired and remained with the mechanic. The manufacturer was not made aware of the failure. The failure mileage was approximately 94,700.

TL* THE CONTACT OWNS A 2011 HYUNDAI SONATA. THE CONTACT STATED WHILE DRIVING 20 MPH, THE VEHICLE BEGAN TO DRIFT TO THE RIGHT SIDE OF THE ROAD. THE CONTACT HAD TO CONTROL THE STEERING WHEEL FOR THE VEHICLE TO DRIVE STRAIGHT AHEAD. THE CONTACT STATED THAT SEVERAL WARNING LIGHTS ILLUMINATED BEFORE THE VEHICLE STALLED. THE CONTACT RESTARTED THE VEHICLE AND DEPRESSED THE ACCELERATOR PEDAL HOWEVER, THE ENGINE LOCKED UP AND THE VEHICLE CEASED. THE VEHICLE WAS TOWED TO ANTWERPEN HYUNDAI OF CLARKSVILLE (12440 AUTO DR, CLARKSVILLE, MD 21029) TO BE DIAGNOSED. THE CONTACT REQUESTED THAT THE CONTACT PROVIDE INFORMATION ON OIL CHANGE INTERVALS WHICH WAS PROVIDED. THE VEHICLE WAS NOT DIAGNOSED NOR REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 90,000.