Problems · NHTSA complaints

2021 Hyundai Santa Fe problems

Owners filed 168 complaints about the 2021 Hyundai Santa Fe with NHTSA between Mar 2021 and Oct 2026. The most-cited component is power train (51).

Complaints
168
Filed with NHTSA
Crashes
4
Reported by owners
Fires
2
Reported by owners
Injuries
2
People reported injured
Deaths
0
Reported to NHTSA
01 —By component

Complaints by component

One complaint can cite several components
  1. Power train51
  2. Engine37
  3. Electrical system29
  4. Forward collision avoidance18
  5. Fuel/propulsion system9
  6. Back over prevention8
  7. Visibility/wiper7
  8. Vehicle speed control7
  9. Visibility7
  10. Service brakes6
  11. Seat belts3
  12. Structure3
  13. Air bags2
  14. Seats2

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.

Data from NHTSA Complaints API · synced Nov 2, 2026NHTSA vehicle page
02 —Trend

When complaints were filed

Does it get worse with age? Complaints per calendar year filed
View as table
Model yearComplaints filed per calendar year
202119
202243
202335
202417
202521
202633

Mileage at failure isn’t a structured field in NHTSA complaint data, so we don’t chart it. Some owners mention it in their reports below.

03 —Owner reports

Top problems in owners’ words

Verbatim from NHTSA complaints, newest first

Power train

51 reports1 related recall
“On September 20, 2026, my 2021 Hyundai Santa Fe Calligraphy suffered sluggish acceleration while operating on a public roadway due to an internal dual-clutch transmission (DCT) failure. The Malfunction indicator light illuminated, and a diagnostic scan revealed stored history code P1C2D03, indicating a total breakdown of the high-pressure electric pump assembly. As of September 21, 2026 the vehicle is currently grounded at an authorized Hyundai dealership under an approved factory warranty repair Prior Authorization (PA) request. However the dealership has issued a written admission of "NO ETA" because the replacement transmission components are on an indefinite national backordered and are no longer being manufactured . Because the vehicle cannot be repaired in a reasonable timeframe due to a severe factory design defect , it remains unresolved.”
Owner complaint to NHTSAFiled Oct 12, 2026Power trainODI 11770668

Engine

37 reports1 fire
“The contact owned a 2021 Hyundai Santa Fe. The contact stated that while his wife was driving 50 MPH, the vehicle unexpectedly caught on fire. The contact's wife became aware that the radio was inoperable before the failure. Additionally, the contact’s wife’s eyes were irritated, and there was a hot, harsh odor which grew stronger very quickly. The odor was inside the vehicle. The contact stated that the smoke was black, and flames started shooting out from under the hood to consume the vehicle. The vehicle was a total loss. The fire was extinguished by the Murphysboro Fire Department. The Fire Department was unable to determine where the fire had started. There was a Police report filed. The vehicle was towed to an impound lot. The failure mileage was approximately 58,000.”
Owner complaint to NHTSAFiled Sep 9, 2026EngineFire reportedODI 11763201

Electrical system

29 reports1 crash1 fire
“-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”
Owner complaint to NHTSAFiled Mar 12, 2026Power train, Electrical systemODI 11723881

Forward collision avoidance

18 reports1 crash
“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 come up!”
Owner complaint to NHTSAFiled Jan 14, 2026Electrical system, Service brakes, Forward collision avoidanceODI 11710993

Fuel/propulsion system

9 reports
“The door to the gas tank is a push door which is temperamental. I can be at the pump and push the door to pop it open and it won't. I'm at the point where I have to pop my gas tank open before I even get to the gas station because to pull up to the pump and not be able to put gas in the tank is a waste of time. There is no lever to flip along side the driver seat because it is a push to open door.. it is available for inspection, however, it is temperamental. I will video it so I have proof as it works and it doesn't work. It has not been inspected by anyone only because if it is a defect in the motor for the door, I want Hyundai to recall it. I have gone on YouTube to see if there are remedies and yes, there are videos on how to open the door in case you cannot push it open. I cannot do this because I'm not ruining the back of my car as there is no compartment to open as shown in the YT video. I am not one to let my tank get down to less than 1/2 tank, especially not now. But why am I worrying about popping the door open when I'm not even at the gas station yet??”
Owner complaint to NHTSAFiled Aug 27, 2026Fuel/propulsion systemODI 11760005

Back over prevention

8 reports1 related recall
“The contact owns a 2021 Hyundai Santa Fe. The contact stated that while in reverse(R), the rear-view camera displayed a distorted pixelated image on the screen. The dealer and the manufacturer were notified of the failure and stated that there were no recalls associated with the VIN. Upon investigation, the contact discovered NHTSA Campaign Number: 24V879000 (Back Over Prevention); however, the VIN was not included in the recall. The failure mileage was approximately 40,000.”
Owner complaint to NHTSAFiled Oct 26, 2026Back over preventionODI 11773705
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 2, 2026

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.