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What 916 owners told NHTSA about the 2012 Kia Optima

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 (916)Crash / fire / injury (106)Engine (397)Steering (187)Electrical system (122)Brakes (87)Fuel system (54)Transmission & drivetrain (54)Airbags (48)Speed control (40)Body & structure (39)Lights (31)

3 of 916 complaints match · Speed control · crash/fire/injury only · clear filters

Feb 8, 2018Electrical systemSpeed controlEngineFire

'TAKATA RECALL' I'M CURRENTLY BUYING A KIA OPTIMA 2012 AND EVERYTHING WAS WORKING FINE AND HAD MAINTENANCE UP TO DATE AT KIA OF ORANGE. THEN I DID FULL SERVICE WHICH I PAYED 600$ OR SO AND AFTER THE CAR STARTED GIVING ME PROBLEMS, I WENT TO MY FRIENDS HOUSE AND MY BOYFRIEND GOT OFF TO GET TOOLS FROM THE HOUSE IT TOOK HIM TEN MINUTES TO COME BACK. THE CAR WAS ON AND I WAS WINDOWS UP AND AC ON WHEN HE CAME OUT HE SAW FIRE UNDER THE FRONT LEFT LIGHT. IT GOT ON FIRE AND WE WERE SCARE FOR OUR LIFE'S AND WE MANAGE TO RUN AROUND AND FIND ANYTHING THAT WILL HELP WE HAD WATER AND IT WOULDN'T TURN OFF, WE DIDN'T KNOW IT WAS ELECTRICAL SO IT WAS MELTING PLASTIC UNTIL WE MANAGE TO FIND A FIRE EXTINGUISHER WHILE I WAS CALLING 911 WE THOUGHT THE CAR WAS GOING TO BLOW UP. SECOND OF ALL WE FIX IT INSURANCE COVER. WE CALL KIA THEY TOLD US OUR INSURANCE HAD TO PAY IT. SO WE DID NEXT I TOOK IT TO GET MAINTENANCE UPDATE AND OIL CHANGE, WE TOOK FOR A DRIVE TO CHINO HILLS CALIFORNIA AND THEN THE CAR TURN OFF BY IT SELF ON THE FREEWAY I WAS 65 SPEED LIMIT AND MY STEERING WHEEL GOT HARD AND ALL THE LIGHTS WERE ON. I COULD OF LOST MY LIFE. I MANAGE TO MOVE IT SLOWLY TO THE SIDE AND IT WAS ON FIRE WHEN I OPEN THE HOOD SOMETHING WAS BURNING AGAIN. A SHERIFF HELP US TURN IT OFF WITH HIS FIRE EXTINGUISHER. THE ENGINE HAD BLEW UP A WROT BLEW MAYBE BECAUSE OF NO OIL OR IDK I'M NOT MECHANIC THAT'S WHY I TAKE IT TO KIA. I BELIEVE THEY DIDN'T DO THEIR JOB RIGHT AND MY INSURANCE DOESN'T WANNA COVER IT, NOW I'M CARELESS AND I HAVE A DAUGHTER TO FEED AND I NEED HELP TO GET THIS OUT THERE IF ANYBODY HAS THE SAME ISSUE PLEASE MAKE THIS GO VIRAL. HIGHWAY 91 EAST

NHTSA ODI 11071675

Aug 2, 2016Fuel systemElectrical systemSpeed controlBrakesFire

2012 KIA OPTIMA CAUGHT FIRE WHILE DRIVING 45 MPH & WAS UNABLE TO ACCELERATE/BRAKE. RECENTLY WAS TAKEN FOR SERVICE WITH NO ITEMS THAT WOULD CAUSE THE ISSUE...UPDATED 10/04/16 *BF *TR

NHTSA ODI 10892633

Jul 30, 2012Speed controlCrash3 injuries

TL* THE CONTACT OWNS A 2012 KIA OPTIMA. WHILE DRIVING APPROXIMATELY 5 MPH, THE VEHICLE SUDDENLY ACCELERATED INDEPENDENTLY AND CRASHED INTO THE MEDIAN. THE VEHICLE WAS TOWED TO THE DEALER FOR DIAGNOSTIC TESTING WHERE THE TECHNICIAN ADVISED THAT THE FRONT PASSENGER SIDE TIRE AND AXLE WOULD HAVE TO BE REPLACED. THE FAILURE RECURRED FOUR TIMES. THE FOURTH TIME THE FAILURE RECURRED, THE CONTACT CRASHED INTO ANOTHER VEHICLE. THE CONTACT SUSTAINED INJURIES TO HIS RIGHT KNEE. THE FRONT PASSENGER SUSTAINED INJURIES TO THE NECK, BACK AND RIGHT ARM. THE REAR PASSENGER SUSTAINED INJURIES TO THE RIGHT LEG. THE PASSENGERS WERE TRANSPORTED TO THE HOSPITAL VIA AMBULANCE. THE DRIVER SOUGHT MEDICAL ATTENTION ON HIS OWN AFTER THE CRASH. THE POLICE REPORTED TO THE SCENE AND A REPORT WAS FILED. THE VEHICLE WAS TOWED TO THE DEALER. THE VEHICLE WAS TAKEN TO AN AUTO BODY SHOP FOR THE BODY DAMAGE REPAIR. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND ASSIGNED AN ENGINEER TO REVIEW THE INFORMATION RELATED TO THE CRASH. AN ENGINEER DID NOT INSPECT THE VEHICLE. THE MANUFACTURER REFUSED TO REPAIR THE VEHICLE BECAUSE THEY STATED THERE WERE NO DEFECTS WITHIN THE VEHICLE. THE VEHICLE WAS NOT REPAIRED. THE VIN WAS NOT AVAILABLE. THE APPROXIMATE FAILURE MILEAGE WAS 11,000.

NHTSA ODI 10468204

Working with the data? Download all 916 complaints as CSV · fetched from NHTSA July 19, 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 Kia Optima verdict →