Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2021 Hyundai Santa Fe owners, lightly cleaned up (personal details are redacted by NHTSA).
The contact owns a 2021 Hyundai Santa Fe. The contact stated while making a turn from a complete stop, the vehicle responded but suddenly stopped. There was no warning light illuminated. The contact turned off and restarted the vehicle 5 minutes later. However, upon depressing the accelerator pedal, the engine made abnormal roaring sounds. The contact was able to drive after several attempts and pulled into a parking lot, however, the failure reoccurred. The contact restarted the vehicle and pulled into a parking spot. The vehicle was towed to the dealer where the failure could not be duplicated. An unknown software update and an unknown repair were completed; however, the vehicle hesitated to respond while driving and depressing the accelerator pedal. Additionally, the check engine warning light was illuminated. …
The contact owns a 2021 Hyundai Santa Fe. The contact stated while driving 60 MPH with the Adaptive Cruise Control mode activated, the contact heard three beeping sounds, and the vehicle lost motive power. There was no warning light illuminated. The contact veered to the side of the road. The contact restarted the vehicle and continued driving. The contact stated that the vehicle made the beeping sound again while driving 50-55 MPH however, the vehicle had not lost motive power. The dealer was notified of the failure and informed the contact that the vehicle was safe to drive because there was no warning light illuminated. The contact continued driving. The contact stated that upon restarting the vehicle, the Powertrain Control Module (PCM) warning light was illuminated. …
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.
The contact owns a 2021 Hyundai Santa Fe. The contact stated while driving at various speeds, the vehicle stalled. The check engine warning light was illuminated. The vehicle was taken to the local dealer however, the mechanic was unable to retrieve a fault code. The contact stated that while her husband was driving approximately 35 MPH, the vehicle stalled without warning. The contact was able to coast off the roadway. The vehicle was towed to the local dealer where it was diagnosed and determined that the transmission needed to be replaced. The vehicle was not repaired. The manufacturer was contacted but no additional assistance was provided. The contact stated that the failure was related to NHTSA Campaign Number: 22V746000 (Power Train). The approximate failure mileage was 13,000.
Problem #1 - At least 4 quarts of oil spewed from the oil tank and covered most of the engine for an unknown period time. There were no notifications, alerts, or any other indication concerning the oil tank having 1 or less quart of oil. Ultimately, there are at least three (3) questions that need to be addressed 1.In a 2021 Santa Fe, what would cause both the timing and valve covers to leak out at least four (4) quarts of oil out of the oil tank onto the engine. 2.Why was there no notification, alerts, or indication that the oil tank only had less than one (1) quart of oil. 3.What other damage could there have been to the engine beyond the several parts identified as needing to be replaced, that was not identified. A Chronological Order of Events is available.
The contact owns a 2021 Hyundai Santa Fe. The contact stated upon attempting to drive the vehicle, she shifted into drive; however, the vehicle reversed inadvertently. The contact depressed the brake pedal and shifted into park. The contact shifted from park to drive three times but the vehicle would reverse each time or would fail to move. The RPM's revved up. The "Drive" warning light illuminated. The contact was able to drive the vehicle after several attempts; however, the failure reoccurred a month later. The vehicle was taken to the dealer where it was diagnosed that the shift actuator needed to be replaced. The vehicle was repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 10,273.
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.
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.
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.
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.
Related recalls
Power train › Automatic transmission
Hyundai Motor Company (Hyundai) is recalling certain 2021-2022 Santa Fe, Sonata, Veloster N, 2022 Santa Cruz, Elantra N, and Kona N vehicles. The vehicle's "fail-safe" limited-mobility drive mode may be impaired, when prompted by a transmission oil pump malfunction, which can result in a complete loss of drive power.
Remedy: Dealers will inspect and replace the transmission, as necessary. Dealers will also update the transmission control unit software. All repairs will be performed free of charge.
Transmission complaints in other Santa Fe years
Frequently asked questions
How common are transmission problems on the 2021 Hyundai Santa Fe?
NHTSA has 51 complaints about the transmission & drivetrain of the 2021 Hyundai Santa Fe, 31% of the model year's 167 complaints.
Is there a recall for 2021 Hyundai Santa Fe transmission problems?
Yes — NHTSA recall 22V-746 (automatic transmission, Oct 6, 2022). Recall repairs are free at authorized dealers.
At what mileage do 2021 Hyundai Santa Fe transmission problems start?
Half of the complaints with a recorded mileage happened before about 19,000 miles, and 67% before 25,000 miles.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.