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What 1,551 owners told NHTSA about the 2012 Hyundai Sonata Hev

These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.

All (1,551)Crash / fire / injury (147)Engine (563)Steering (301)Electrical system (234)Airbags (169)Brakes (158)Lights (141)Fuel system (112)Transmission & drivetrain (97)Speed control (84)Seat belts (74)

4 of 1,551 complaints match · Seat belts · crash/fire/injury only · clear filters

Apr 2, 2019SteeringElectrical systemLightsAirbagsSeat beltsEngineFuel systemFire

TL* THE CONTACT OWNS A 2012 HYUNDAI SONATA. THE CONTACT STATED THAT THE REAR TAIL LIGHTS HAD AN INTERNAL ELECTRICAL SHORT AND CONTAINED RUST AND CORROSION. ALSO, THE SOCKETS MELTED ON BOTH SIDES OF THE REAR TAIL LIGHTS. THE REAR PASSENGER SIDE LIGHT HAD TO BE REMOVED TO PREVENT THE MIDDLE REAR BRAKE LIGHT FROM REMAINING ILLUMINATED. THE REAR DRIVER'S SIDE TAIL LIGHT WAS OPERABLE, BUT EVENTUALLY SHORTED OUT AS WELL. THE CONTACT ORDERED REPLACEMENT TAIL LIGHTS THREE TIMES, BUT THE FAILURE RECURRED EACH TIME. IN ADDITION, THE CONTACT HEARD A LOUD NOISE CONCERNING THE FUEL SYSTEM. WHEN TURNING THE STEERING WHEEL IN EITHER DIRECTION, THE CONTACT HEARD AN ABNORMAL NOISE INTERMITTENTLY. THE VEHICLE WAS INCLUDED IN NHTSA CAMPAIGN NUMBERS: 18V137000 (SEAT BELTS AND AIR BAGS) AND 18V934000 (ENGINE, FUEL SYSTEM, GASOLINE); HOWEVER, THE CONTACT DID NOT RECEIVE ANY NOTIFICATIONS. MCGRATH CITY HYUNDAI (6750 W GRAND AVE, CHICAGO, IL 60707, (773) 889-9090) WAS CONTACTED, BUT HAD NOT DIAGNOSED OR REPAIRED THE VEHICLE. THE MANUFACTURER WAS NOTIFIED OF THE FAILURES. THE APPROXIMATE FAILURE MILEAGE WAS 90,000.

NHTSA ODI 11193325

Dec 7, 2018AirbagsSeat beltsCrash

TL* THE CONTACT OWNS A 2012 HYUNDAI SONATA. WHILE DRIVING AT AN UNKNOWN SPEED, THE CONTACT CRASHED INTO A DEER. THE AIR BAGS DID NOT DEPLOY. THE VIN WAS INCLUDED IN NHTSA CAMPAIGN NUMBER: 18V137000 (SEAT BELT, AIR BAGS). A POLICE REPORT WAS FILED. THERE WERE NO INJURIES SUSTAINED. THE VEHICLE WAS TOWED TO A LOCAL COLLISION CENTER FOR DIAGNOSTIC TESTING. IT WAS NOT YET DETERMINED IF THE VEHICLE WAS DESTROYED. THE VEHICLE WAS NOT TAKEN TO A DEALER FOR DIAGNOSTIC TESTING. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 165,444.

NHTSA ODI 11156730

Jul 6, 2018AirbagsSeat beltsCrash1 injury

TL* THE CONTACT OWNS A 2012 HYUNDAI SONATA. WHILE THE CONTACT WAS STOPPED AT A RED LIGHT, HIS VEHICLE WAS REAR ENDED BY ANOTHER VEHICLE. THE AIR BAGS DID NOT DEPLOY. A POLICE REPORT WAS FILED. THERE WERE MINOR INJURIES THAT REQUIRED MEDICAL ATTENTION. THE VEHICLE WAS TOWED TO AN INDEPENDENT MECHANIC WHO STATED THAT THE VEHICLE WAS INCLUDED IN NHTSA CAMPAIGN NUMBERS: 17V617000 (SEAT BELTS) AND 18V137000 (SEAT BELTS, AIR BAGS). THE MANUFACTURER WAS NOTIFIED AND INFORMED THE CONTACT TO CALL NHTSA. THE FAILURE MILEAGE WAS 125,000.

NHTSA ODI 11109836

Jan 7, 2014Electrical systemSeat beltsSeatsFire

I WAS GETTING READY FOR WORK AND THE TEMPERATURE OUTSIDE WAS -2 DEGREES SO I WENT TO WARM UP THE CAR FOR 20 MINS AND THEN STARTED TO HEAD OUT TO WORK. AS I WAS LEAVING NOT EVEN 5 MINS LATER I STARTED TO SMELL SOMETHING BURNING. SO I PULLED OVER AND STARTED TO SEE SMOKE, THEN I STARTED TO LOOK AROUND TO FIND OUT WHERE IT WAS COMING FROM AND I SEE SMOKE COMING FROM THE BOTTOM OF THE BACK SEAT RIGHT BEHIND THE DRIVER SEAT. SO I STARTED TAKING MY PERSONAL BELONGINGS OUT OF THE VEHICLE. AFTER REMOVING MY PERSONAL BELONGINGS, I WENT TO THE CAR AND NOW THERE WAS MORE SMOKE COMING FROM THE BOTTOM OF THE REAR SEAT CLOSEST TO THE REAR DOOR DRIVER SIDE. SO THEN I PULLED UP THE SEAT AND I SEE FLAMES, AND THERE WERE FLAMES, I CALL 911 AND THEY CAME LIKE IN 5 MINS.I'M JUST BLESSED THAT I DIDN'T HAVE MY KIDS WITH ME. *TR

NHTSA ODI 10558870

Working with the data? Download all 1,551 complaints as CSV · fetched from NHTSA July 14, 2026

How to use these: a complaint is one owner’s report, filed voluntarily and published unverified. Patterns matter more than any single story. If several owners describe the same failure at similar mileage, put that system at the top of your pre-purchase inspection list. Back to the full 2012 Hyundai Sonata Hev verdict →