NHTSA Complaint #11676441 — 2021 HYUNDAI SONATA

ENGINE issue reported to NHTSA

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Complaint Details

ODI Number	11676441
Vehicle	2021 HYUNDAI SONATA
Component	ENGINE
Date of Incident	July 23, 2025
Date Filed	July 27, 2025
Mileage	N/A miles
Crash	No
Fire	No
Injuries	0
Deaths	0
Vehicle Towed	No
State	PA

Consumer Description

After initial startup and drive for a short time, I come to a stop. Then after vehicle doesn’t want to accelerate as it normally would. Vehicle struggles to gain speed but, the engine revs excessively. I pull off the road and come to a stop and try to accelerate again and the same thing happens. I shut the vehicle off and wait a few minutes,then restart and the vehicle accelerates normally again. There were no check engine lights the when this has happened.

Related Complaints for the 2021 HYUNDAI SONATA

Other ENGINE Complaints

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Recent Complaints for the 2021 HYUNDAI SONATA

#11719681 — FUEL/PROPULSION SYSTEM — February 22, 2026 — On i believe 1/14/26, my check engine light came on. Scheduled appt.for 1/16/26 for diagnostic. Several things were w...

#11719316 — VISIBILITY/WIPER — February 20, 2026 — The EHRS coolant system failed and had a leak causing the coolant to be excessively burned off as thick white smoke. ...

#11718194 — POWER TRAIN — February 16, 2026 — Vehicle suddenly lost heat in 30 degree weather. No warnings, check engine light, or temperature gauge indicators cam...

#11716730 — FUEL SYSTEM, GASOLINE — February 9, 2026 — The contact owns a 2021 Hyundai Sonata. While driving at various speeds, the vehicle unexpectedly shut off without wa...

#11716213 — FUEL SYSTEM, GASOLINE — February 6, 2026 — The contact owns a 2021 Hyundai Sonata. The contact stated that while driving at an undisclosed speed, the accelerato...