NHTSA Complaint #11534239 — 2021 HYUNDAI SONATA

ELECTRICAL SYSTEM issue reported to NHTSA

Check any vehicle history by VIN - Free vehicle history report

Complaint Details

ODI Number	11534239
Vehicle	2021 HYUNDAI SONATA
Component	ELECTRICAL SYSTEM
Date of Incident	April 12, 2022
Date Filed	July 25, 2023
Mileage	N/A miles
Crash	No
Fire	No
Injuries	0
Deaths	0
Vehicle Towed	No
State	FL

Consumer Description

So for the past year and half my cars left turn signal has been working intermittently. It just stops working and then it starts again. I have taken it to the dealer many times they changed out signal assembly i have taken many videos show proof. I am told at the dealer if you dont bring it in when it is not working then they cannot do anything even if i have video proof documenting this issue for the past year this is a serious safety issue that must be addressed. My next step is to contact Hyundai directly hopefully you can investigate this issue. This is very dangerous.

Related Complaints for the 2021 HYUNDAI SONATA

Other ELECTRICAL SYSTEM Complaints

#11700120 — November 18, 2025 — My 2021 Hyundai Sonata Limited Hybrid 12v battery has started to die randomly. My car is currently with the Hyundai d...

#11694723 — October 21, 2025 — Car sits several days at a time. Door locked. 12 volt auxiliary battery goes dead within 60 minutes after driving 60 ...

#11685401 — September 5, 2025 — 2021 Hyundai Sonata with approximately 39,000 miles. On [XXX], the dashboard displayed the following message "Shifter...

#11657913 — April 30, 2025 — The buttons to the door locking and unlocking don't work unless I open and close my door a few times. The same thing ...

#11642341 — February 12, 2025 — On 5 separate occasions the car has shut itself off while driving. After the first 2 times the car was taken to the ...

Recent Complaints for the 2021 HYUNDAI SONATA

#11719681 — ENGINE — 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...

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

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