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EnginePart report

2021 Hyundai Accent Engine Problems

Complaints
4about this part
Share
25%of 16 total for the year
Median mileage
—not reported
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 4 complaints about the engine of the 2021 Hyundai Accent, 25% of the 16 complaints for this model year. 1 a fire, according to the filers.

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.

“My 2021 Hyundai accent has randomly not started a in more than 10 different times. The lights go on and you can hear it trying to start but it never catches to actually start. It’s under warranty but the dealer says if they can’t see it when it’s happening then they can’t fix anything. I bought a new battery with dealer recommendations but I still hace they problem. I only have 25,300 miles on this 2 year old car.”

NHTSA complaint #11556330, filed 2023-11

“The contact owns a 2021 Hyundai Accent. The contact stated that while driving on the highway at 40 MPH, the vehicle lost automotive power. There was no warning light illuminated. The vehicle was taken to a local dealer where the vehicle was diagnosed; however, the contact was informed there was no fault found with the vehicle. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was unknown.”

NHTSA complaint #11670511, filed 2025-07

“The contact leased a 2021 Hyundai Accent through Enterprise Rent-A-Car. The contact stated that while driving 50 MPH, the vehicle lost motive power for about 5 seconds while accelerating and decelerating through traffic. The contact stated that he was able to duplicate the failure five times and related the failure to the engine; however, the vehicle was not diagnosed or repaired by an independent mechanic or dealer. The contact returned the vehicle to Enterprise Rent-A-Car and `informed them about the failure. The manufacturer was not made aware of the failure. …”

NHTSA complaint #11617490, filed 2024-10

Related service bulletins

Engine: other model years

YearComplaintsShare of year
2022318%
2021425%
2020433%
20191961%
2018842%
20172334%
20163332%
20152029%
20141823%
20133525%
20123624%
20111026%
201078%
200966%
200844%
200767%
200512%
200211%
200011%

Other parts of the 2021 Hyundai Accent

Seat belts
6 complaints
Wheels
5 complaints
Electrical system
2 complaints
Brakes
1 complaints
Steering
1 complaints

← All problems reported for the 2021 Hyundai Accent

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 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