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Engine & cooling

2021 Hyundai Accent Engine problems

Owners have filed 4 complaints about the 2021 Hyundai Accent's engine & cooling with NHTSA - 25% of all its complaints, most recently on July 1, 2025. They describe 0 crashes, 1 fire and 0 injuries. Stalling, loss of power, oil consumption, overheating, head gaskets, timing chains and engine failure.

Complaints
4
Recalls
0
Crashes
0
Fires
1
Injuries
0
Deaths
0

Engine complaints

Engine & cooling

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.

Filed Incident EngineNHTSA 11670511
Engine & cooling

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. The failure mileage was unknown.

Filed Incident EngineNHTSA 11617490
Electrical systemEngine & cooling

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.

Filed Incident Electrical system · EngineNHTSA 11556330
Engine & coolingFire

Engine compartment fire. Vehicle towed to Hyundai dealer in Bremerton wa

Filed Incident EngineNHTSA 11456438

Hyundai Accent engine complaints by year

Accent engine problems, every year

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Source: U.S. National Highway Traffic Safety Administration (NHTSA) complaints and recalls, checked . Complaints are owners' own reports and are not verified. How we use the data

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