Problems · NHTSA complaints

2021 Hyundai Santa Fe Hybrid problems

Owners filed 20 complaints about the 2021 Hyundai Santa Fe Hybrid with NHTSA between Jan 2022 and Jul 2024. The most-cited component is engine (8).

Complaints
20
Filed with NHTSA
Crashes
0
Reported by owners
Fires
0
Reported by owners
Injuries
0
People reported injured
Deaths
0
Reported to NHTSA
01 —By component

Complaints by component

One complaint can cite several components
  1. Engine8
  2. Power train7
  3. Fuel/propulsion system4
  4. Electrical system3
  5. Seat belts2
  6. Engine and engine cooling1
  7. Forward collision avoidance1
  8. Lane departure1
  9. Back over prevention1
  10. Vehicle speed control1
  11. Tires1
  12. Air bags1
  13. Seats1
  14. Other / unknown5

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 Oct 30, 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
202210
20237
20243

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

Engine

8 reports
“The contact owns a 2021 Hyundai Santa Fe Hybrid. The contact stated that while driving at various speeds, the vehicle lost motive power. The contact was able to restart the vehicle; however, the vehicle failed to exceed 40 MPH. The contact stated that the failure reoccurred several times while driving. The contact stated that on several occasions, the vehicle lost motive power. A message indicating that there was no power was displayed, and the check engine warning light was illuminated. Additionally, a red Hybrid warning light with a stop safely message was displayed. The contact stated that the Hyundai App displayed the Power Train and Chassis indicated the contact needed to schedule a service. The vehicle was towed to the dealer, where it was diagnosed and determined the vehicle had either bad fuel or the vehicle was refueled while the engine was running. Additionally, the gas cap was left open. The contact stated that the failure persisted, and the vehicle was taken to the dealer several times. The dealer replaced the rocker cover gasket and oil gasket to resolve a leak. The vehicle was at the local dealer awaiting Field Technical Engineer inspection. The…”
Owner complaint to NHTSAFiled Jan 9, 2024Power train, EngineODI 11564397

Power train

7 reports
“I have been taking my 21 Santa Fe hybrid limited into the dealership for a year and a half for the same code . Powertrain code P040B00, and to this day they can not repair this issue. I looked it up and a ton of us are having issues with this same code. It should be investigated, and customers should be warned. Hyundai needs to recall these vehicles or provide a solution. A year and a half is unacceptable”
Owner complaint to NHTSAFiled Jul 22, 2023Power trainODI 11533831

Fuel/propulsion system

4 reports
“While driving 80 mph down the highway my brand new vehicle shut off completely, the entire car lost power. In another instance I was going around a roundabout and my acceleration completely went out, my son was in the back seat and another car had to jump the curb to avoid crashing into us. I met a woman in the dealership who has been waiting over a year for her recalled tow hitch to be fixed. When it rains or snows the forward safety systems shut off and the alert repeats extremely distracting on your dash, like sounds, red flashing lights, over and over again. You have to constantly hit the ok button while driving to get it to go away.”
Owner complaint to NHTSAFiled Jun 27, 2023Engine, Fuel/propulsion system, Forward collision avoidanceODI 11529228

Electrical system

3 reports
“From what I have been told there is no recall on this issue. Purchased a Hyundai Sante Fe Hybrid 2021 brand new in 2021. I live in La Quinta California summers are especially hot. Temps can be anywhere from 105 to 120 . Only had the car for 6months when in light came on saying Inverter needs coolant this has been a problem for the past 2yrs. Checked with Hyundai Service department my coolant is fine air conditioning works well. This not a safety issue but should be fixed and Hyundai is doing nothing about it. Many complaints have been ignored.”
Owner complaint to NHTSAFiled May 9, 2023Electrical system, Unknown or other, EngineODI 11521248

Seat belts

2 reports1 related recall
“The contact owns a 2021 Hyundai Santa Fe. The contact received notification of NHTSA Campaign Number: 22V816000 (Seat Belts) 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 driver's side seat belt failed to extend smoothly. The contact stated that occasionally the seat belt became stuck and excessive force was needed to operate the seat belt. The manufacturer was not made aware of the failure. The approximate failure mileage was 26,000. Parts distribution disconnect.”
Owner complaint to NHTSAFiled Dec 29, 2022Seat beltsODI 11499412

Engine and engine cooling

1 report
“The contact owns a 2021 Hyundai Santa Fe. The contact stated while driving 50 MPH, the vehicle failed to respond while the accelerator pedal was depressed. The vehicle was taken to a local dealer where it was diagnosed that the camshaft sensor needed to be replaced. In addition, the vehicle was repaired several times however, the failure persisted. The check engine warning light was illuminated. The contact stated that the vehicle lost motive power while driving at various speeds. The vehicle was taken to another local dealer to be diagnosed; however, the cause of the failure was not yet determined. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 32,000.”
Owner complaint to NHTSAFiled Jul 8, 2024Engine and engine coolingODI 11600067
Data from NHTSA Complaints API (owner reports, unverified) · synced Oct 30, 2026

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