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Transmission and drivetrainPart report

2021 Hyundai Santa FE Hybrid Transmission and drivetrain Problems

Complaints
7about this part
Share
35%of 20 total for the year
Median mileage
31,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 7 complaints about the transmission and drivetrain of the 2021 Hyundai Santa FE Hybrid, 35% of the 20 complaints for this model year. Where a mileage was given, the median is 31,000 miles.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“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”

NHTSA complaint #11533831, filed 2023-07

“While I was traveling 70-75 mph the vehicle had a sudden loss of engine and battery output performance and I began losing speed. There was a very rapid decrease in speed, and no warning chime activated per manual. “Check Hybrid System. Stop Safely, triangle warning displayed.” The vehicle would not accelerate despite pressing the gas pedal all the way to the floor and had to be coasted off the interstate through three lanes of traffic to get to the shoulder. No fault indications were present in the Bluelink app despite warnings present on the dash. …”

NHTSA complaint #11477826, filed 2022-08

“While driving on the highway, when I pushed on gas pedal the car would not accelerate, I was uncertain if I was losing power of the vehicle, luckily it maintained the current speed and did not decelerate,but I was unsure at the moment if I was losing complete power, because it wasn't responding, it felt like the car was going to stall similar to when you run out of fuel. This occured for around 20 seconds, i would guess, long enough to notice that the car was not responding and continued to not respond,and to be concerned from a safety perspective. …”

NHTSA complaint #11487859, filed 2022-10

“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. …”

NHTSA complaint #11564397, filed 2024-01, 31,000 miles

“Gas pedal stops working while driving down the road. Happened 3 times. Will work again after awhile. Dealership can't find what's wrong with it and so hyundai and the dealership said they can't fix it.”

NHTSA complaint #11508108, filed 2023-02

Related service bulletins

Transmission and drivetrain: other model years

YearComplaintsShare of year
2026210%
20252524%
2024925%
20231526%
20221335%
2021735%

Other parts of the 2021 Hyundai Santa FE Hybrid

Engine
8 complaints
Other or unknown
5 complaints
Fuel system
4 complaints
Electrical system
3 complaints
Seat belts
2 complaints
Air bags
1 complaints
Back-over prevention (rear camera)
1 complaints
Engine cooling
1 complaints
Forward collision avoidance
1 complaints
Lane departure
1 complaints
Seats
1 complaints
Tires
1 complaints

← All problems reported for the 2021 Hyundai Santa FE Hybrid

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology