2021 Hyundai Santa Fe Common Problems & Defect Telemetry

“My rear back up camera intermitting stops working. I can shift into reverse sometimes and the camera does not come on at all, other times the screen blinks and other times the screen has green lines and glitchy lines. The camera will also come on while I'm DRIVING forward”

“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 f...”

“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 "anom...”

“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 f...”

“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 "anom...”

“My 2021 Hyundai Santa Fe (VIN ... ) is experiencing severe engine instability, including rough idling, hesitation upon acceleration, and intermittent stalling. These symptoms align with TSB 26-FL-001H regarding defective GDI fuel injectors. The vehicle has stalled in traffic, ...”

“My rear back up camera intermitting stops working. I can shift into reverse sometimes and the camera does not come on at all, other times the screen blinks and other times the screen has green lines and glitchy lines. The camera will also come on while I'm DRIVING forward”

“When i select (R) reverse my camera does not come on. It started as just a flashing screen, but does not come on. It has come on momentarily while I am (D)driving. it has flashed a green screen before.”

“The contact owns a 2021 Hyundai Santa Fe. The contact stated that the vehicle was repaired under NHTSA Campaign Number: 24V879000 (BACK OVER PREVENTION), but the failure occurred. The contact stated that the back over prevention camera displayed a distorted image or a black sc...”

“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 pul...”

“Was coming off an exit on the interstate and started slowing down. My brakes act like they didn’t want to work. Grinding and the pedal was twitching under my foot. The car stopped thankfully, but then all Linda of lights came on the my dash and will not go off. And 3 warning c...”

“On 1/1/26 while traveling on the highway with no traffic in front of or right of my vehicle the ADAS emergency brakes applied themselves and slowed the vehicle nearly causing my vehicle to be rear ended. Vehicle is available for inspection. Faulty assistance nearly caused a re...”

“Driving down the interstate to work at around 70 MPH at approximately 6:40 AM and the front sunroof exploded upwards. Nothing of impact, just a loud explosion and glass blew upwards. The broken glass is positioned upward. The cover of the sunroof was closed and it was not curr...”

“The contact owns a 2021 Hyundai Santa Fe. The contact stated that while driving at an undisclosed speed, the controls on the steering wheel became inoperable. In addition, the air bag warning light was illuminated. The vehicle was taken to an independent mechanic where it was ...”

“Ever since I have purchased these tires I have been experiencing extreme violent vibration between 60 to 75 Mi an hour on the highway at first I wondered if something was wrong with the balance on the tire so I had them checked at the dealership twice and then I went to anothe...”

“My 2021 Hyundai Santa Fe (VIN ... ) is experiencing severe engine instability, including rough idling, hesitation upon acceleration, and intermittent stalling. These symptoms align with TSB 26-FL-001H regarding defective GDI fuel injectors. The vehicle has stalled in traffic, ...”

“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...”

“I am writing to formally report an issue with my vehicle that I believe may warrant a recall investigation. The issue involves the fuel door, which is failing to open after the car has been turned off. This has occurred repeatedly and is preventing me from refueling the vehicl...”

“The contact owns a 2021 Hyundai Santa Fe. The contact stated that while driving at an undisclosed speed, the controls on the steering wheel became inoperable. In addition, the air bag warning light was illuminated. The vehicle was taken to an independent mechanic where it was ...”

“The seat belt is incredibly slow to retract. Most times I need to help it along. I've tried pulling it out to check for kinks (none there) and tried cleaning it but it still won't retract”

“The contact owns a 2021 Hyundai Santa Fe. The contact stated while driving at various speeds with an occupant in the passenger’s side front seat, the air bag light off message was displayed. The vehicle was taken to the local dealer, where it was diagnosed that a software upda...”