What 162 owners told NHTSA about the 2021 Hyundai Santa Fe Plug-in Hybrid

The contact owns a 2021 Hyundai Santa Fe. The contact stated that while driving approximately 5-30 MPH, the transmission failed to shift properly, and the vehicle lost motive power. The engine warning light was illuminated. The contact stated that the failure was a recurring failure. The contact stated that the vehicle was repaired under NHTSA Campaign Number: 22V746000 (Power Train); however, the failure persisted. The dealer was contacted. The manufacturer was made aware of the failure. The failure mileage was approximately 78,000.

NHTSA ODI 11747209

My check engine light came on, and my car was also feeling "sluggish" and slow to accelerate. I scheduled a service appointment at my local dealer 4 days later. At the appointment, the technician stated everything checked out okay and the check engine light was likely an "anomaly" or "outlier" but otherwise nothing to be concerned about since everything checked out "okay" and no problems were identified during their test drive. However, that very afternoon, I was driving down the interstate, where the posted speed limit is 70mph, when my check engine light came on again and suddenly lost power, drastically reducing my speed and could not accelerate faster than 39mph. Luckily, the interstate was not busy at the time (about 10:30-11:00 a.m. Saturday morning) and there were only less than 4 cars behind me that were able to easily switch lanes and pass me. I moved over to the shoulder to a complete stop and restarted my car. My check engine light remained illuminated and was still slow to accelerate and "sluggish" but was able to (slowly) reach interstate speed (60-70mph) until I reached an acceptable exit and safely made it to my destination. I have since used roadside assistance to tow the vehicle from my home to the the same dealership for inspection and service (again).

NHTSA ODI 11746250

First instance at 50-55 mph the transmission violently shook the car when downshifting to accelerate on multiple occasions. Dealership diagnosed the problem as a faulty transmission and replaced it at 44064 miles on March 18, 2025. Second time the car failed to accelerate when merging into traffic while the engine revved very high. Again it was taken to the dealership and the diagnosis was faulty transmission. A second transmission was in stalled at 51331 miles. Second transmission began downshifting hard upon accelerating at highway speeds. Retuned to dealership and diagnoses was faulty fuel injectors and all four were replaced on April 7 at 52960 miles. On April 10, 2026 the car displayed a check engine light after the car began shuttering at highway speeds and was immediately returned to dealership where it’s pending a diagnoses. Failure to safely accelerate when merging make this vehicle a safety risk.

NHTSA ODI 11731022

-shift lever in transmutation stopped working so car would go into auto shut off and then would not drive once I took my foot off the break. Would not switch gears or drive. Had to shut car off then turn back on to get it to switch gears. -safety was put at risk majorly. Car did that in 5 lanes of traffic with me and kids in car and couldn’t drive. We almost got hit. -dealership said no issues found until I took it in a second time for the same issue then they said it was the translation shift leaver. -Briggs Kia inspected it -no warnings at all -This happened MULTIPLE times. Put the most current date

NHTSA ODI 11723881

I was about to turn into a 2 lane road and a warning came on my dash, "shifter system malfunction service immediately " my vehicle was in Drive I was unable to move my vehicle, unable to shift into any other gear. It was sudden with no warning or loss of power prior to the warning and loss of movement.

NHTSA ODI 11720840

Vehicle has now had several incidences of completing losing all acceleration power while driving at both high and low speeds, resulting in need to turn on hazards and abruptly pull to side of road. Pushing on gas pedal does nothing and vehicle will even roll backwards if I pull over on a hill and take my foot off the brake. I have to put vehicle in park and turn off. Sometimes I have to restart the vehicle a few times before it will drive forward after putting it back into drive. The vehicle does not lose electrical power and will sometimes display the master warning light on dashboard and other times have no dashboard indicator of a problem. This is an extremely dangerous situation and my VIN is not listed under safety recall 22V-746 despite exhibiting the same behavior. I have contacted my local Hyundai dealership service in past and they recommended a transmission flush which did nothing to alleviate the issue. It is now happening frequently so we are reaching out to the local Hyundai dealer service center again.

NHTSA ODI 11713279

Code P1C2D03 is popping up on my 2021 Hyundai Santa Fe after the dealership "fixed" the recall in 2023. My car is going into limp mode, failing while driving, and unsafe. Dealership and corporate won't help me. The transmission was never replaced with the recall and they are claiming they aren't relatable and can't do anything unless a recall is reopened.

NHTSA ODI 11712535

The contact owns a 2021 Hyundai Santa Fe. The contact stated that while driving approximately 20 MPH, the vehicle experienced hard shifting while attempting to change gears, and the vehicle hesitated, and the check engine warning light illuminated. The vehicle was taken to an independent mechanic, but was not diagnosed or repaired; however, DTC: P1C2D03 was retrieved. The vehicle was then taken to a dealer, where the same diagnostic trouble code was confirmed. The dealer diagnosed that the transmission had failed and needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure, and a case was opened. The approximate failure mileage was 99,700.

NHTSA ODI 11709672

My transmission failed, even after the #236 recall in 2022. My car was recalled for Recall #236 in 2022. My car was updated and "fixed" and now in 2025 is showing the p1c2d03 code and requiring a new transmission. The same recall, without the fix.The car is in great health and never had issues until I was going 60 miles per hour on a busy highway and it reduced to 26 miles per hour during busy traffic. Causing me to almost get rear-ended multiple times and people swerving off the highway to miss me. My car was not going, even with the gas pedal down. I had no warnings, it happened out of nowhere.

NHTSA ODI 11696391

The transmission in my 2021 Hyundai Santa Fe has failed multiple times. The first failure occurred within the first two years of owning the vehicle. The car began jerking, hesitating, and struggling to accelerate, and the check engine light came on. The dealership confirmed a transmission issue and replaced the transmission under warranty. After that replacement, the same symptoms returned, and the transmission had to be replaced a second time, again under warranty. The most recent transmission replacement was only a few weeks ago, and the same symptoms are already returning — the vehicle hesitates, jerks, and occasionally loses power when trying to accelerate. These problems create serious safety concerns, especially when merging onto highways or crossing intersections. The hesitation and loss of power make it unpredictable and unsafe to drive. I have two young children who ride in car seats, and I no longer feel confident that this vehicle is safe for my family. Hyundai service employees have acknowledged that this is a known, recurring issue with this model’s transmission design. However, no permanent fix or recall has been issued, and I have been told to continue replacing the transmission under warranty until the coverage runs out. This approach does not address the underlying safety defect. The issue has been confirmed by Hyundai dealerships multiple times. The check engine light has come on before each failure. I am reporting this because repeated transmission failures that cause hesitation and power loss are a clear safety risk, and Hyundai has not provided a lasting solution.

NHTSA ODI 11694090

This vehicle has two instances of transmission disengagement. One at highway speed and the other while driving in a residential area. In both cases the vehicle suddenly started to slow down, and the rpms went up to 4-5 thousand. I was able to stop the car and turn it off and after a few minutes restarted the car and completed the journeys without any further issues. I have contacted the dealer and will be taking the car in for a diagnosis. I did not notice any warning lamps or other symptoms before each occurance.

NHTSA ODI 11660982

Upon starting the vehicle and placing in drive, it drove like it was stuck in a low gear. A few seconds later the vehicle stopped moving while in drive and would not respond to drive or reverse despite turning off the ignition and restarting. I was stranded in an intersection and the car would not move. It had to be towed to the dealer.

NHTSA ODI 11645700

The contact owns a 2021 Hyundai Santa Fe. The contact stated that the vehicle was hesitating after a cold start. While driving at unknown speeds, the vehicle lost motive power. The contact was able to pull over and restart the vehicle. The contact's husband restarted the vehicle, and the vehicle operated as designed. There were no warning lights illuminated. The local dealer was not contacted. The contact related the failure to NHTSA Campaign Number: 22V746000 (Power Train). The vehicle was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was approximately 41,122.

NHTSA ODI 11599223

I was driving on the freeway and the transmission suddenly went out, causing me to quickly lose speed. The car was on, my foot was on the gas, but I wasn't moving forward. I maneuvered to the side of the road as best I could, with a semi on my tail and almost rear-ending me. I put the car in park, then in reverse and again in drive, put my foot on the gas, and still no movement. I turned the car off, and back on, and it worked fine. I had the car towed to the dealership where they stated they could not recreate the incident, and that no codes had been alerted. At my request, they also checked to make sure the system that records codes was working and I was told it was fine. The dealership couldn't help me. I am fearful of driving this vehicle, especially on the freeway as this could happen again at any time, putting myself and others in danger.

NHTSA ODI 11595160

When I press the pedal to acelérate it has no power to move on drive or reverse and other problem power off when I drive on the road.

NHTSA ODI 11590478

The contact owned a 2021 Hyundai Santa Fe. The contact stated received notification of Hyundai Recall Campaign Number: 236, and the vehicle was taken to the dealer, where the 8-speed dual clutch transmissions (DCT) TCU software update was performed. The contact stated while driving 70 MPH, the vehicle shut off temporarily and almost came to a complete stop. There was no warning light illuminated. The contact was stated that he continued driving the vehicle. The dealer was notified of the failure and scheduled an appointment for a diagnostic test; however, the contact decided to trade the vehicle due to safety concerns. The vehicle was traded for another vehicle. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 15,600.

NHTSA ODI 11562514

Transmission goes out of gear while driving. It was taken to Hyundai for inspection 5 times. Goes out of gear when driving. Making a turn at a light, the car stopped in the intersection, I could have been hit by another car. Car was taken in for a transmission recall on 02/07/2023, ever since they reset the transmission, the car goes out of gear again. It didn’t happen before recall and computer reset. The car has been back to the Hyundai dealer on at least 5 times and has been there for a full week now. They still have the car. The dealership said they can’t reproduce the problem. No warning lights when taken for recall, however, transmission warning light came on the last 2 times taken to the dealership.

NHTSA ODI 11548276

The contact owns 2021 Hyundai Santa Fe. The contact stated that while driving at various speeds, the vehicle hesitated while depressing the accelerator pedal. There was no warning light illuminated. Upon investigation, the contact discovered NHTSA Campaign Number: 22V746000 (Power Train) and linked the recall to the failure. The manufacturer was notified of the failure and informed the contact that the vehicle was not covered under the recall or warranty. A case was filed, and the contact was referred to the NHTSA Hotline. The vehicle was not repaired. The failure mileage was approximately 40,000.

NHTSA ODI 11547340

Once again on 7/18/2023 (P1C2D03) and 8/15/2023 (P1C2E92) DTC for TCU issues VERY DANGEROUS condition, fails to accelerate from stops at signs and traffic lights, then nearly stalls in traffic lane bogging down, and cuts out decelerating when accelerator pushed to floor, risking being rear-ended by following cars. By the time car is ready to take to dealer for analysis the fault has corrected and there is no active code for diagnosis – been repaired twice but continuing TCU codes. SEEMS to be same issue as Recall 236, don't believe the fix is effective

NHTSA ODI 11538851

24 Jan 2023 I had this Santa Fe repaired at the dealership for Recall #236, oil pump transmission code DTC P1C2E92. They claimed the software update fixed the issue. On 27 May 2023 the same code was transmitted and the vehicle entered a safety mode preventing driving it. Hyundai towed the vehicle to a Dealership in Florida (Hampton Hyundai, Fort Walton Beach). They did the same corrective action - the transmission "relearned" the software. Hyundai USA claims it "could" be for a different issue. I sounds to me like their recall repair did not correct the issue. Having a vehicle shut down with 20 seconds to pull over every 4 months does not seem like an effective recall correction.

NHTSA ODI 11525829

The contact owns a 2021 Hyundai Santa Fe. The contact received notification of NHTSA Campaign Number: 22V746000 (Power Train) however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.

NHTSA ODI 11509841

When driving on the highway the suv would not change gears. It felt like it was stuck in 1st gear, reving very high. Was unable to move the suv to the side of the road. Came to a stop with heavy traffic blowing there horns. Put the suv into park, switched it over to sport mode and was able to get going. This is the third time the suv has lost power. Also have noticed the transmission has been taking to long to change gears.

NHTSA ODI 11509437

The contact owns a 2021 Hyundai Santa Fe. The contact received notification of NHTSA Campaign Number: 22V746000 (Power Train) however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The dealer was made aware of the issue. The manufacturer was not made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.

NHTSA ODI 11506039

The contact owns a 2021 Hyundai Santa Fe. The contact stated while driving at an undisclosed speed, the vehicle was stalling with the transmission, check engine, and other unknown warning lights illuminated. The vehicle was taken to a local dealer on two occasions; however, the failure could not be duplicated. The contact stated that the failure recurred on several occasions. The vehicle was then taken back to the dealer, where it remained awaiting parts for the repair. The contact received notification of NHTSA Campaign Number: 22V746000 (Power Train). The manufacturer was made aware of the failure. The failure mileage was 13,483.

NHTSA ODI 11505197

On January 26th, 2023 at 9:57am the vehicle was unable to shift into reverse, drive, or neutral. The vehicle's system sent automatic messages indicating to have the transmission control system checked. We had the vehicle towed to a Hyundai dealer to be serviced. The dealership advised they performed a software update and that nothing else needed to be done. Then on January 30th, 2023 at 7:44pm the vehicle's check engine light came on and the vehicles system sent us another notification to our phone and email that there was a transmission control system issue. The vehicle shakes abruptly when accelerating after a stop. I have photos of the warning messages as well as video of the car shaking.

NHTSA ODI 11504811