Kia Optima Complaints

7,843 consumer complaints on file.

#11682663August 24, 2025
ENGINE
Engine Is knocking that happened when I took my car 3 times to emission test and my car didn't pass after that I took it to my mechanic for the diagnostic and he told me you have to take it to kia dealer but I was shocked the way how they treated me and they completely refuse to replace my engine they came up with too many excuses and I have recall repair active I have right to fix my car but they didn't with bad attitude
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11682620August 23, 2025
ENGINE
The vehicle unexpectedly stalled while idling at a complete stop, posing a serious safety concern. Shortly afterward, the check engine light illuminated. These events occurred around 78,000 miles. Prior to the stall, the engine had been making occasional knocking or tapping noises, particularly at idle. The vehicle was immediately taken to a certified Kia dealership, where a technician diagnosed the issue as engine failure consistent with a known manufacturer recall affecting this vehicle model and year. A recall claim was submitted to the manufacturer, but the repair has been delayed for over a month with no authorization to proceed. No loaner vehicle has been provided. The engine failure puts the driver and others at risk, especially if the vehicle were to stall during active traffic conditions. The problem has been confirmed by the dealership but has not yet been resolved by the manufacturer. Inspection by the manufacturer is still pending. Warning symptoms included the engine light and knocking sounds, which began shortly before the stall occurred.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11682517August 22, 2025
ENGINE
Engine began jumping during driving and loss power. No dashboard illumination warning lights and the temperature gage showed normal operating temperature. Car was not accelerating properly. Had to maneuver carefully to prevent being ran over. Engine light illuminated showing misfire. Replaced ignition coil pack and spark plugs. Driving again, car stalled. No dashboard warning lights. No high temperature on gauge. Narrowly missed being hit by a semi as there was absolutely no warning and we were on an Interstate bypass ramp with nowhere to pull over!! Towed car to dealership for diagnosis. Results: engine blown, turbos gone, and the catalytic converter is holding oil. Dealer is stating this is not covered under the extended warranty from Kia as its not connector rod bearing issues and that the piston rings failed. However, they stated the turbos got "too hot" and they failed. The gauges have never shown that the car was running hot. I have a sworn statement from my mechanic stating this is absurd and a valiant attempt to not pay for what would be the second warranty replacement of my engine. The piston rings failed as a result of the connector rod bearing failure. The "too hot" temperature that damaged the turbos was likely caused by the same bearing issue. The heat from the bearings unseated the piston rings and allowed the engine to dump its oil causing the engine to fail. I highly recommend that you open an investigation into these issues. The car not accelerating and losing power at interstate speeds is a very serious and dangerous issue.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11682043August 21, 2025
ENGINE AND ENGINE COOLING
The contact owns a 2016 Kia Optima. The contact stated that while driving approximately 75 MPH and attempting to accelerate to overtake a semi-truck, the vehicle suddenly started losing automotive power and then stalled. The vehicle was towed to the local dealer, who diagnosed that the engine had seized and needed to be replaced. The vehicle was not yet repaired. The contact indicated that prior to the failure, the check engine warning light illuminated and remained illuminated, and the engine experienced excessive oil consumption. The manufacturer was not yet notified of the failure. The failure mileage was 45,000. The VIN was not available.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11682104August 21, 2025
STRUCTURE:BODY
Paint is peeling off in big chunks down to the metal. On the hood, trunk, and over the doors.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11682167August 21, 2025
AIR BAGS, STRUCTURE:BODY
Dashboard shows a crack right where the passenger airbag is and Kia Motors wont change it, also the paint is flaking and noticed other Kia models with that same paint scheme that’s peeling off.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11682175August 21, 2025
ENGINE
Car began hesitating and stalling, particularly from a stop. Engine light came on. Took the car to the KIA dealership for diagnosis. Was told by svc coordinator that the diagnosis indicated a bad knock sensor. The technician replaced the knock sensor, then test drove the car. It failed immediately. I was told that it would likely need engine replacement. After a few days, svc coordinator called and said that KIA recommended replacing the knock sensor (again) and perform a tuneup. They declined to replace the engine. The car runs in "limp home mode" (Kia's terminology), hesitates and stalls so as to make it very unsafe to operate. The engine on this car was replaced about two years ago for excessive oil consumption. There cannot be more than 30k miles on the new engine. KIA stated that there is a lifetime warranty on the replaced engines, but are apparently not going to honor the warranty. Car is serviced regularly and is in otherwise excellent condition.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11682214August 21, 2025
ENGINE
My 2015 Kia Optima (VIN [XXX] ) case # [XXX] is covered under Kia’s engine recall for potential engine failure/fire. However, Kia and Ray Skillman Northeast Kia, Indianapolis refused to perform the recall repair because I do not have the last two years of oil change records. This is a safety recall, not a warranty claim, and denial of repair violates recall obligations. I am requesting NHTSA’s assistance to ensure Kia complies with the law and replaces the defective engine. Thank you. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11682246August 21, 2025
ENGINE
My 2012 Kia Optima experienced engine failure due to a dropped valve. The dealership (Kia of Des Moines) performed a borescope inspection but stopped after discovering the broken valve. This means rod bearing failure was not ruled out. Two separate service reports conflict, one citing Cylinder 2 and another citing Cylinder 3. Kia denied coverage, citing that the failure was unrelated to the settlement and outside the mileage warranty
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11682278August 21, 2025
ENGINE
The Engine locked up while driving down the highway at 60mph. Not possible for inspection vehicle currently broke down at shop. I barely had braking power to stop vehicle. Has been confirmed by Kia dealership. Yes vehicle has been inspected by vehicle manufacturer. Check engine light came on 5 seconds before locking up. Happened [XXX] at [XXX]. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11681530August 19, 2025
ENGINE
My car is burning oil and oil is covering my spark plugs. Was mentioned about decarbonizing
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11681636August 19, 2025
ELECTRICAL SYSTEM, EXTERIOR LIGHTING
My cars bulbs have been blowing on a regular basis for two years..some of the bulb connections are catching fire and exploding .Ive changed on numerous occasions but doesn’t matter even with new fittings…obviously an electric problem
Crash:
No
Fire:
Yes
Injuries:
0
Deaths:
0
#11681651August 19, 2025
ENGINE
Driving home from an oil change. All of a sudden all power was lost. Luckily a wide spot in the road was right there. Car would not start back up. Checked oil- it was good. Had car trailered to a mechanic. He took off oil filter and cut it in half- was full of metal shavings. Said needs new engine. We trailered the car back home, where it currently sits. If the wide spot in the road wasn’t there, they’re likely would have been an accident being this was right on a sharp corner.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11681739August 19, 2025
SERVICE BRAKES, ELECTRICAL SYSTEM, STEERING
While driving Kia Optima, unable to turn steering wheel. No notice when first starting vehicle. While driving, a traction and steering wheel light turns on without a sound(ding) to notify driver. Then once driver attempts to turn, unable due to steering wheel locked. Unsafe to drive on the road. Dangerous for all passengers. Our safety is put at risk due to unable to turn steering wheel while driving. Must turn vehicle off in middle of road, then it resets so steering wheel to turn. Code C12 60 returns for power steering sensor malfunction.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11681325August 18, 2025
ENGINE, FUEL/PROPULSION SYSTEM
I am filing this complaint to urgently bring attention to a serious safety and mechanical defect with my Kia vehicle's engine and fuel system. My engine is excessively consuming oil, to the point where it poses a significant risk of engine failure, which could result in a loss of power while driving and create a hazardous situation on the road. Details: I consistently have to add 5 quarts of oil approximately every month. During regular oil changes, there is barely any oil recovered from the engine, suggesting the oil is being consumed or burned internally. I took the vehicle to AutoZone for diagnostics, and they confirmed the engine is burning oil. They also mentioned it could be related to a rod or piston ring issue. There are no visible leaks under the vehicle, and the oil is not being expelled externally—it's being consumed by the engine. This issue is not normal wear and tear. It's a systemic engine defect that is causing rapid oil loss and is likely to lead to engine seizure or failure if not addressed. This level of oil consumption is not just expensive—it is dangerous. A sudden loss of engine power could cause an accident, especially at highway speeds. I am deeply concerned for my safety and the safety of others on the road. Urgency: I am requesting the NHTSA to investigate this issue and consider initiating a recall for affected Kia vehicles. I am not the only one facing this problem—online forums and consumer reports are filled with similar complaints from other Kia owners. This is a critical engine/fuel system safety defect that must be addressed immediately before someone is injured or worse due to engine failure while driving. Thank you for your time and attention to this matter. I am available to provide service records, photos, and further documentation upon request. Sincerely, [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11681327August 18, 2025
ELECTRICAL SYSTEM, ENGINE, VISIBILITY:SUN/MOON ROOF ASSEMBLY
The contact owns a 2012 Kia Optima. The contact stated that while driving at 30 MPH, the contact pressed on the horn, and the horn failed to function as intended. No warning lights were illuminated. The contact stated that on a separate occasion, upon starting the vehicle and attempting to adjust the driver’s side mirror, there was an abnormal clicking sound coming from the side-view mirror motor. The contact stated that several days later, the abnormal clicking sound ceased, and the driver’s side mirror failed to function as intended. On a separate occasion, the passenger’s side mirror motor was making an abnormal clicking sound. Several days later, the clicking sound ceased and the passenger’s side mirror failed to function as intended. No warning lights were illuminated. The contact stated that while attempting to close the sunroof, the motor failed to function as intended and the sunroof was half closed. The contact had to place a tarp over the sunroof to protect inside the vehicle from the elements. No warning lights were illuminated. Recently the vehicle received maintenance and there was an abnormal knocking sound coming from the engine. In addition, the vehicle failed to accelerate as intended while depressing the accelerator pedal. The contact stated that while driving at slow speeds, the vehicle stalled. The contact was able to coast to the side of the road. No warning lights were illuminated. The vehicle was towed to the dealer, where it was diagnosed and determined that an unknown part had failed in the engine. The contact was unsure what part of the engine had been replaced. The failure recurred, and the contact had safety concerns about the vehicle. The manufacturer was notified of the failure. The failure mileage was approximately 50,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11681328August 18, 2025
ENGINE AND ENGINE COOLING
The contact owns a 2018 Kia Optima. The contact stated that while driving at various speeds, the vehicle hesitated while depressing the accelerator pedal with the oil warning light flashing on the instrument panel. The contact's friend initially inspected the vehicle and discovered that the engine oil was empty. The vehicle was taken to a dealer where a diagnostic test was performed, and the mechanic discovered oil around the engine; however, the source of the leak was not discovered. The contact was informed that an engine valve was sealed and that the failure was repaired. Despite the repair, the failure persisted, and the oil light was frequently illuminated on the instrument panel. The engine oil level was checked and was extremely low. The dealer had not offered any additional assistance for the repair. The vehicle was not repaired. The contact made several attempts to reach the manufacturer but was unsuccessful. The failure mileage was approximately 10,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11681371August 18, 2025
STEERING
The steering wheel has a noise when turn, actually the noise is so loud now that it shakes while I'm driving. I have a video of it. I also brought to the mechanic and he told me that this is from the manufacturer problem. The videos are not support to download here. Let me know if I can send it through another way. Thank you, I'm going to kia dealer on Sep. 2nd to fix another recall, if please, send me a recall for the steering wheel as well. Thank you, appreciate it.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11681451August 18, 2025
STRUCTURE:BODY
3 years ago the paint on my car started peeling. I drove my car from rideshare and was unable to continue due to the visual condition of my car. After further research, it's a nationwide problem. I dont have the money to afford a full paint job and put a bad taste in my mouth when thinking about referring people buying a Kia or my next car purchase. I have lost thousands of dollars due to kid's negligence on their paint.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11681174August 17, 2025
ELECTRICAL SYSTEM, UNKNOWN OR OTHER
The wire that causes the car to crank start burning that in the wiring hardness. which it make the car hard to crank
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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