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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)

31 of 916 complaints match · Lights · clear filters · page 2 of 2

Feb 28, 2019Lights

ORIGINAL HID HEADLIGHTS BECAME DIM TO THE POINT IT FAILED A VIRGINIA STATE SAFETY INSPECTION. DEALER SERVICE DEPARTMENT STATES THE REFLECTIVE MATERIAL IN THE HEADLIGHT HOUSING HAS DIMINISHED.

NHTSA ODI 11183213

Jul 13, 2018Lights

THE LOW BEAM HEADLIGHTS ARE DIM AND MAKE IT DIFFICULT TO DRIVE SAFELY AT NIGHT.

NHTSA ODI 11111163

Mar 15, 2018Lights

TL* THE CONTACT OWNS A 2012 KIA OPTIMA. WHILE DRIVING VARIOUS SPEEDS AT NIGHT, THE LOW BEAM HEADLIGHTS FAILED TO ILLUMINATE BRIGHTLY. THE ILLUMINATION PREVENTED THE CONTACT FROM VIEWING THE ROAD WHILE DRIVING. THE VEHICLE WAS NOT TAKEN TO THE DEALER OR INDEPENDENT MECHANIC TO DETERMINE THE CAUSE OF THE FAILURE. THE MANUFACTURER WAS NOT NOTIFIED. THE APPROXIMATE FAILURE MILEAGE WAS 122,597.

NHTSA ODI 11079582

Nov 21, 2017LightsSpeed controlBrakes

I FIRST NOTICED A PROBLEM WITH MY VEHICLE WHEN THE CRUISE CONTROL WOULD RANDOMLY DISENGAGE WHILE GOING DOWN THE INTERSTATE. THEN A COUPLE OF WEEKS LATER I WAS MAKING A LEFT TURN ACROSS A TWO LANES OF TRAFFIC ON A CITY STREET. WHEN I FIRST PUSHED THE ACCELERATOR THE CAR STARTED TO GO AND THEN SUDDENLY I LOST ALL ACCELERATION. I LET MY FOOT OFF THE ACCELERATOR AND THEN PUSHED BACK DOWN AND WAS ABLE TO GO. THIS WAS A VERY DANGEROUS SITUATION AS I WAS STUCK IN THE MIDDLE OF TWO LANES OF TRAFFIC FOR SEVERAL EXTRA SECONDS LONGER THAN NECESSARY. A SIMILAR SITUATION HAPPENED A COUPLE OF MORE TIME AND WHEN I PARKED THE VEHICLE AT HOME I NOTICED THAT BRAKE LIGHT WAS STAYING ON AFTER I GOT OUT OF THE CAR. I TOOK THE CAR TO THE LOCAL KIA DEALERSHIP AND THEY REPLACED THE BRAKE SENSOR WHICH FIXED ALL OF THE ABOVE PROBLEMS. I WOULD LIKE TO NOT THAT HYUNDAI ISSUED A RECALL ON THE NEARLY IDENTICAL SONATA FOR THIS SAME ISSUE AND DID SO YEARS AGO AND YET NOTHING FOR THE OPTIMA.

NHTSA ODI 11047857

Sep 6, 2015LightsBody & structureCrash1 injury

EXITING HWY 71 EAST BOUND TO WOODWARD DECREASING SPEED THE VEHICLE IN FRONT OF ME HAD A CAR CUT IN FRONT OF HER. I HAD A SAFE DISTANCE AND SLAMMED MY BRAKES. MY BRAKES DID NOT GRAB AS USUAL MY CAR DID NOT STOP AND I HIT THE VEHICLE IN FRONT OF ME. I TRULY BELIEVE MY BRAKE SYSTEM FAILED. I WILL TAKE MY CAR INTO KIA WHEN I GET IT BACK.

NHTSA ODI 10761891

Nov 11, 2014Electrical systemLights

THE INTERIOR OVERHEAD LIGHTS PERIODICALLY COME ON AND GO OFF WHILE OPERATING OUR 2012 OPTIMA. THIS OCCURS WITH THE SWITCH IN BOTH ON AND OFF POSITION AND THE LIGHTBULBS TEND TO BECOME OVERHEATED.THEY DO NOT RESPOND TO MANUAL OPERATION, BUT GO OFF ON THEIR OWN AND THIS MALFUNCTION REPEATS SEVERAL TIMES IN A TEN MINUTE DRIVE. BEST-CASE SCENARIO RESULTS IN THE BULBS BURNING OUT PREMATURELY, BUT I BELIEVE THERE IS A REAL CHANCE OF A MORE SERIOUS SHORT-CIRCUIT AND POTENTIAL INTERIOR FIRE. *TR

NHTSA ODI 10654208

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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 →