Owner-reported complaints naming the brake system, filed with NHTSA
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Reports naming service brakes, the antilock braking system, brake hoses, master cylinders or the parking brake. Every record below is an owner-reported complaint about the 2018 Kia Optima submitted to NHTSA — not a confirmed defect, not a recall and not a manufacturer bulletin. 17 reports on file name it.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
Shown in the owner’s own words, exactly as filed
Purchased vehicle from a used car dealership. Had it a few months before brake pedal started losing pressure and going to floor. Had master cylinder replaced. A few months later, brake light started coming on when accelerating. New master cylinder had leaked into brake booster. Had master cylinder replaced along with brake booster. A few weeks later and brake pedal is losing pressure again
I turned the car off, it had difficulty turning back on and the brake pedal got really hard. I had to wait about 30-45 minutes and then I was able to get the car started and brake pedal back to normal and no lights. Recently, I left the car on to run into a shop real quick and come back out. When I got back to the car, the power steering light, battery, and warning light?(amber triangle with ! In the center of it) were all on. I rev the engine and the issue went away for a quick second but then came back on. To avoid turning my car off and being stuck, I just shift to reverse and tried to leave. I’m backing out of the spot and now the backup camera is going in and out lights flashing on the dash and I’m trying to brake but the brake pedal isn’t registering and next thing you know, I’ve backed into a guard rail. On the way to drop my kids off at the babysitter, I was coming to a stop sign, and my car wouldn’t brake, i went through oncoming trafic and had to run off the road. KIA did a multi point inspection a few months apart from one another. One the car tested fine, then the second time they are saying a brake booster and no engine oil in the vehicle and that the car is basically trash. The oil light goes on and off and I can smell burning oil. I still owe 7 grand on this car and I just bought it last year and it was seamingly fine.
Purchased car about 4 months ago, before warranty ran out, the shop looked at it told me it was fine, it wouldn't accelerate. Few weeks later same issue but all my oil was gone, they found 11 things wrong with the vehicle, told me warranty wouldn't take care of it unless the engine blow up. The salesman Scottie Mitchell told me check Kia for recalls, called Kia 3 recalls, they were trying to finance another car higher, back wanted to know why the dealership didn't know about recalls, Kia place did call a Robert. One of the owners did know about recalls, why dealership didn't pass them on. They trying to sell me a higher vehicle to keep cover the cost of the one I got 1st
Driver side brake light will only work with headlights off. Turn headlights on and it goes out and doesn't start to work until turning off headlights. Also brakes give out when trying to stop, you have to actually shift to neutral for brakes to work again.
I slowly pulled into the parking lot at work coming around a corner with my break song slowly to see if anything was coming from the other side, pull it around to THE back looking straight ahead to pull into my parking spot as I pulled into my parking spot mind you I have had my foot on the break before. I got there and I got into the park spot. I hit the brakes and the brakes went to the floor multiple times and the car just searched straightforward into the brick wall of the building.
The braking system "catches" at 13mph regularly. It feels like the brakes are being applied or the vehicle is downshifting when it is decelarating to around 13mph without any actual braking being manually applied. So far no safety risk, but if the brakes fail at any point for any reason, there will be potential for great risk. The local Kia dealer was able to reproduce this but had no explanation, no recommendation, and no further advice or assistance was offered. At this point, the Kia dealership is the only entity to inspect this issue. There are no warning lights or indicators of failure or problems, but this issue has been ongoing since the vehicle was purchased.
Front brake calipers seize and burning smell and smoke coming for front wheels. Have replaced the rotors, calipers and brake pads(twice) and it does not seem to fix the problem.
LOUD RATTELING WHEN CRANKING, CONTINUOUS RATTELING WHEN ACCELERATING UNDER DRIVERSIDE FLOOR BOARD MADE A CLUNK SOUND WHEN APPLYING BRAKES AND NOW ITS LIKE A SLIDING SOUND BEFORE IT CATCHES BRAKE
I HAVE 63,826 MILES ON MY 2018 KIA OPTIMA S AND I DROVE IT TO THE STORE AND ALL MY LIGHT ON THE DASH CAME ON WHEN I WOULD COME TO A STOP AND MY POWER STEERING WOULD GO OUT AND ABOUT CAUSE ME TO WRECK. I WAS TOLD THAT IT WAS MY ALTERNATOR BUT AFTER GETTING A NEW ALTERNATOR I THEN DROVE IT TO GET DINNER A FEW DAYS LATER WHEN THE SAME THING STARTED HAPPENING AGAIN AND MY POWER STEERING KEPT GOING OUT AGAIN. I HAVE TWO NEWBORN BABIES, A 5 YEAR OLD AND A 10 YEAR OLD IN THE VEHICLE WITH ME AND HAD I WRECKED WHEN THE POWER STEERING WENT OUT IT COULD HAVE BEEN A BAD SITUATION.
WHEN I GO TO ACCELERATE FROM A STOPPED POSITION; THE CAR STALLS AND TURNS OFF AND THEN IT TURNS ITSELF BACK ON. ADDITIONALLY, WHEN I DRIVE OVER 50 MPH THE CAR/TIRES START TO VIBRATE.
THIS HAS HAPPED NOW 5 TIMES!! WHEN APPLYING MY BRAKES, THE PEDAL GETS FIRM WHICH LITTLE TO NO REDUCTION IN SPEED! THEN PEDAL GOES ALMOST ALL THE WAY TO THE FLOOR AND WHEELS LOCK UP, COMING TO AN ABRUPT STOP! EACH TIME THIS HAPPENED WAS COMPLETELY RANDOM AND WITHOUT ANY TYPE OF WARNING! EACH TIME I WAS APPROACHING A STOPS SIGN OR COMING UP TO AN OFF RAMP! BROUGHT MY CAR INTO THE KIA DEALERSHIP AND THEY CHECKED IT OUT FOR HOURS AND THEY DID NOT COME UP WITH ANYTHING BUT TOLD ME THEY WOULD REPORT IT! SO STILL HAVING PROBLEMS AND THEY CAN'T FIND ANYTHING WRONG WITH IT! I DON'T FEEL I CAN SAFELY DRIVE MY VEHICLE ANYMORE ESPECIALLY WITH MY KIDS!!! THIS NEEDS TO BE ADDRESSED BEFORE SOMEONE GETS HURT!!! BUT OF COURSE KIA WON'T DO THE EXTRA WORK TO HELP SOLVE THE PROBLEM!!
I WAS DRIVING ON A HIGHWAY AND STARTED TO HEAR AN NOISE FROM THE FRONT RIGHT WHILE I WAS ON A ROAD TRIP. HAD BEEN DRIVING FOR ABOUT 45 MILES AND MOVED OVER ONE LANE TO THE RIGHT AND FRONT RIGHT TIRE BLEW - HAD LESS THAN 16,000 MILES ON CAR. I GOT THE TIRE REPLACED AT A KIA DEALERSHIP AND WHEELS ALIGNED. THEN,DRIVING ON A MAIN ROAD, 45 MPH A FEW WEEKS LATER, GOT TO A PASSING ZONE, AND PASSED THE CAR IN FRONT OF ME AFTER ACCELERATING TO 65 DURING THE SHORT PASSING ZONE. AFTER PASSING THE CAR I TAPPED THE BREAKS TO SLOW BACK DOWN TO 45 AND THE TRACTION, BRAKE, AND TMZ LIGHTS ALL CAME ON. WHEN BRAKE ENGAGED, CAR DID NOT BRAKE AS NORMAL AND A ODD NOISE LIKE A GRINDING SOUND COULD BE HEARD COMING FROM THE FRONT RIGHT WHEEL AREA. TOOK THE CAR INTO DEALERSHIP, THEY RAN DIAGNOSTICS, SAID IT WAS A 'MISS-TRIPPED' SENSOR AND CLEARING IT CORRECTED THE ISSUE. I DROVE MY CAR LESS THAN 5 MILES DOWN THE ROAD AND ENGAGED THE BRAKE ON A 40 MPH ROAD AT A STOP LIGHT, ALL THREE LIGHTS CAME RIGHT BACK ON. HAD TO CALL AND TAKE CAR BACK IN AND THEY ENDED UP KEEPING MY CAR SEVERAL DAYS BEFORE SAYING I HAD A BAD TIRE SENSOR, BUT CAR WAS SAFE TO DRIVE. DROVE AGAIN, TO A NEIGHBORING CITY AND HAD BEEN DRIVING ABOUT 40 MILES AND FRONT LEFT TIRE BLEW. GOT IT TOWED BACK TO THE DEALERSHIP, WHO SAID TIRES BLOWING HAD NOTHING TO DO WITH CENSOR. GOT TIRE CHANGED AND ROTATION. PICKED UP CAR AND TIRE PRESSURE LIGHT CAME ON -LOW PRESSURE. NITRO WAS ADDED BY DEALERSHIP AND LIGHT WENT OFF. TURNED MY PRESSURE READER ON AND 2 MILES DOWN THE ROAD THE CAR WENT FROM 37 TO 45 PSI. I THINK BAD SENSOR IS CAUSING OVER INFLATING OF TIRES AT THE DEALERSHIP LEADING TO BLOWN TIRES.TESTED PRESSURE WITH SEPARATE PRESSURE READER AND TOO HIGH SO LET SOME AIR OUT, DROVE DOWN A HIGHWAY AT 50 MPH AND CAR 'BOTTOMED OUT' ON A ROLLING DIP IN THE ROAD SCRAPPING THE PLASTIC PROTECTION PIECE BEHIND THE FRONT RIGHT TIRE UNDER THE CAR
3 TIMES INTERMITTENTLY BRAKE PEDAL ON MY 2018 KIA OPTIMA FROZE AND TO IT WONT BRAKE. NO LIGHTS CAME ON DASHBOARD. I HAVE ONLY 22.000 MILES ON IT. I TOOK THE CAR TO NEAREST KIA DEALER TWICE. ACCORDING TO THEM THEY ARE UNABLE TO DUPLICATE THE PROBLEM AND COMPUTER NOT READING ANY ERROR CODES VEHICLE UNSAFE TO DRIVE
RANDOMLY BRAKE PEDAL ON MY KIA OPTIMA FREEZES AND IM UNABLE TO APPLY AND STOP VEHICLE IT HAPPENED TWICE ONCE IT HAPPENED ON HWY AND ONCE ON CITY STREET. CURRENTLY VEHICLE IS IN DEALERSHIP SINCE JAN 2ND AND DEALER STATING THEY ARE UNABLE TO DUPLICATE ISSUE
I HAVE NEVER HAD ANY ISSUES WITH MY CAR, I GET MAINTENANCE AS SCHEDULED SO IT'S ODD THAT THIS IS EVEN HAPPENING. ON DECEMBER 6TH I WENT TO MOVE MY CAR. I CRANK THE CAR WITH NO PROBLEM. I NOTICED IT KIND OF HESISTATED SLIGHTLY, BUT CONTINUED ON WITH NO PROBLEM. WHEN I WENT TO PUT MY CAR IN REVERSE IN ORDER TO PARK IT STALLED AND ABOUT 5 OR 6 OF THE LIGHTS ON THE DASH CAME ON, THE STEERING WHEEL WENT HARD TO MANAGE/STEER AND AS 6 OTHER LIGHTS STARTED BLINKING, I COULD NO LONGER MANIPULATE MY WHEEL SO I ALLOWED THE CAR TO ROLL INTO THE SPOT BECAUSE I WAS ON A SLIGHT INCLINE AND PUT IT IN PARK. THE MOMENT I DID THAT THE CAR CUT OFF. IT WOULD NOT TURN OVER, IT WOULD NOT DO ANYTHING BESIDES CLICK WHEN I TRIED TO CRANK THE CAR AGAIN. I EVENTUALLY ASKED SOMEONE FOR A JUMP AND MANAGED TO MAKE IT HOME. THE NEXT DAY I GOT UP AND DROVE AS I NORMALLY WOULD AND THATS WHEN THE ELETRIC POWER STEERING WARNING LIGHT CAME ON. WHEN THAT LIGHT COMES ON THE CAR BECOMES HARD TO MANEUVER. THANKFULLY THAT TIME IT WENT OFF AND PROCEEDED TO DRIVE AS IT WOULD NORMALLY. THIS ISSUE HAPPENS UNEXPECTEDLY WITHOUT ANY WARNING. SO AT ANY MOMENT I COULD BE DRIVING AND THE CAR CAN STOP ON ME. I HAVE 4 KIDS AND LIVE IN A REALLY BUSY AREA SO EVEN THE THOUGHT OF THIS HAPPENING HAS ME SECOND THINKING EACH TIME I HAVE TO MOVE MY CAR!! I'VE SEEN MORE THAN ONE OF THE SAME COMPLAINT AND I NOTICE OUR VIN #'S ARE SIMILAR SO SOMETHING SHOULD REALLY BE DONE ABOUT THIS AS IT SEEMS THIS IS A TREND WITH THE YEAR, MAKE, AND MODEL OF THIS CAR.
WHEN REVERSING THE BRAKES TAKE 5 TO 10 SECONDS TO RELEASE, ALSO THE BRAKE LIGHT STAYS ON THE ENTIRE TIME OF THIS ISSUE HAPPENING.
TAKATA RECALL. I WAS INVOLVED IN AN ACCIDENT WHERE I WAS COMING OFF THE HIGHWAY, SLID ON WATER AND CRASHED INTO A STEEL POLE. THE BREAKS DID NOT WORK AT ALL AND WHEN I GOT OUT TO LOOK AT THE DAMAGE THE BREAK PADS WERE IN THE MIDDLE OF THE STREET LIKE THEY HAD JUST FALL OFF. NONE OF THE AIRBAGS DEPLOYED AND MY FRIEND'S HEAD CRACKED THE WINDSHIELD. CAR WAS TOTALED.
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.
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