Owners have filed 188 complaints
about the 2008 KIA Optima with NHTSA between 2008 and 2026.
The largest single group is the airbags.
Across this model's run it ranks 9 of 20 worst.
The letter says how bad. This says what kind — whether this year drew
an unusual number of complaints, unusually dangerous
ones, or failures that arrived unusually early.
The dashed ring is 50 — the national norm. Further out is worse.
Complaint volume — 18
Against the median year of the KIA Optima. 50 means typical for this
model; 100 means roughly double.
Severity — 100
31.9% of these complaints
involved a crash, fire, injury or death, against a national rate of
9.7%.
Early failure — 50
29% of failures with a mileage on record happened under
36,000 miles, against a national rate of
29%.
NHTSA files every complaint against a named sub-assembly, not just a
system. This is the difference between knowing it was "the engine" and
knowing which part of it — the list to hand a mechanic.
Frontal
1356.5%
Body
417.4%
Speedometer/Odometer
14.3%
Rotor
14.3%
Floor Shift
14.3%
Sensor/Control Module
14.3%
Glass, Side/Rear
14.3%
Engine
14.3%
When it fails
Odometer readings owners gave when they filed. About half of all
complaints include one.
Under 1,000 miles
128.6%
1,000 – 9,999 miles
139.4%
10,000 – 24,999 miles
96.5%
25,000 – 49,999 miles
1712.2%
50,000 – 74,999 miles
2417.3%
75,000 – 99,999 miles
2719.4%
100,000 – 149,999 miles
2316.5%
150,000+ miles
1410.1%
When owners complained
A spike years after the car went on sale usually means a part wearing
out on schedule across the whole fleet — the kind of pattern no single
owner can see from inside their own car.
Apr 2008peak 7Feb 2026
NHTSA investigations into the 2008 KIA Optima
An investigation is the step before a recall: the agency has seen enough
complaints to look into a pattern itself. An open one means it thinks
something may be wrong and nothing has been fixed yet.
DP22003Opened 12 Sep 2022Closed 12 Dec 2023ENGINE
Loss of Motive Power
The National Highway Traffic Safety Administration (NHTSA) received a letter dated July 13, 2022, petitioning the Agency to initiate a safety defect investigation into loss of motive power allegations attributed to oil drain pan assembly failures on certain Hyundai Motor America, Inc. and Kia America, Inc. vehicles spanning Model Years (MY) 2005-2021. The Petitioners cited examples of complaints indicating that the subject vehicles were experiencing rapid loss of engine oil due to oil drain plug back outs, resulting in loss of motive power and/or catastrophic engine damage. Additional complain...
DP21003Opened 12 Nov 2021Closed 20 Jun 2023VEHICLE SPEED CONTROL:THROTTLE
Throttle control system vulnerabilities
The Office of Defects Investigation (ODI) of the National Highway Traffic Safety Administration (NHTSA) received a petition letter dated October 10, 2021, requesting an investigation of possible defects in the electronic throttle control (ETC) system on certain Kia vehicles resulting in the opening of DP21-003. Accordingly, Model Year (MY) 2005-2016 Kia Optima/K5, MY 2006-2015 Kia Sorento, MY 2007-2016 Hyundai Elantra, MY 2007-2016 Hyundai Santa Fe, MY 2006-2015 Hyundai Sonatas are all part of the subject population. The petition was originally filed as a Vehicle Owner Questionnaire that can b...
PE10046Opened 22 Nov 2010Closed 5 Apr 2011POWER TRAIN:AUTOMATIC TRANSMISSION:GEAR POSITION INDICATION (PRNDL)
Transmission Shift Cable Detachment
During manufacture the automatic transmission shift cables in certain subject vehicles were installed incorrectly causing extra tension on the cable.This condition can cause the shift cable to detach from the gear shifter assembly's dowel pin preventing the transmission from being shifted.The shift lever can be moved into the Park (P) position while the vehicle transmission is still in the last used gear before detachment.If this were to occur, and if the driver leaves the vehicle without engaging the parking brake, the vehicle may inadvertently roll away thus creating the risk of a crash.Kia...
Complaints that involved harm
Reports where the owner recorded a crash, a fire, an injury or a death.
Chesapeake, VACrash
POWER TRAIN
While driving, I tried to reverse my vehicle and it got stuck in drive , and wouldn't and my gear shift no longer responded to the gear and my vehicle was locked in place in drive mode.
NHTSA complaint #11419355 — an unverified report by a vehicle owner.
at 100,000 milesLOS Angeles, CACrash1 injured
AIR BAGS
I WAS DRIVING SOUTHBOUND ON SEPULVEDA BLVD ON SEP 6 AT 0800AM AND I WAS OVER HALFWAY THROUGH THE GREEN LIGHT WHEN I WAS STRUCK BY A TOYOTA MAKING A LEFT TURN ON A GREEN LIGHT WHO DID NOT YIELD. THE DRIVER [XXX] STRUCK MY CAR ON THE FRONT AND LEFT DRIVER BUMPER AND FENDER CAUSING EXTENSIVE DAMAGE. HE FAILED TO YIELD, LIED ABOUT IT AND THE FRONT AND SIDE AIR BAGS DID NOT DEPLOY. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).
NHTSA complaint #11386753 — an unverified report by a vehicle owner.
at 100,000 milesLOS Angeles, CACrash1 injured
EXTERIOR LIGHTING
I WAS DRIVING SOUTHBOUND ON SEPULVEDA BLVD ON SEP 6 AT 0800AM AND I WAS OVER HALFWAY THROUGH THE GREEN LIGHT WHEN I WAS STRUCK BY A TOYOTA MAKING A LEFT TURN ON A GREEN LIGHT WHO DID NOT YIELD. THE DRIVER [XXX] STRUCK MY CAR ON THE FRONT AND LEFT DRIVER BUMPER AND FENDER CAUSING EXTENSIVE DAMAGE. HE FAILED TO YIELD, LIED ABOUT IT AND THE FRONT AND SIDE AIR BAGS DID NOT DEPLOY. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).
NHTSA complaint #11386753 — an unverified report by a vehicle owner.
at 100,000 milesLOS Angeles, CACrash1 injured
STRUCTURE:BODY
I WAS DRIVING SOUTHBOUND ON SEPULVEDA BLVD ON SEP 6 AT 0800AM AND I WAS OVER HALFWAY THROUGH THE GREEN LIGHT WHEN I WAS STRUCK BY A TOYOTA MAKING A LEFT TURN ON A GREEN LIGHT WHO DID NOT YIELD. THE DRIVER [XXX] STRUCK MY CAR ON THE FRONT AND LEFT DRIVER BUMPER AND FENDER CAUSING EXTENSIVE DAMAGE. HE FAILED TO YIELD, LIED ABOUT IT AND THE FRONT AND SIDE AIR BAGS DID NOT DEPLOY. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).
NHTSA complaint #11386753 — an unverified report by a vehicle owner.
at 130,000 milesColumbus, OHFire
UNKNOWN OR OTHER
WAS DRIVING ON THE HIGHWAY WHEN THE CAR BURST INTO FLAMES
NHTSA complaint #11337790 — an unverified report by a vehicle owner.
at 130,000 milesColumbus, OHFire
ELECTRICAL SYSTEM
WAS DRIVING ON THE HIGHWAY WHEN THE CAR BURST INTO FLAMES
NHTSA complaint #11337790 — an unverified report by a vehicle owner.
The most recent complaints
In the owners' own words, exactly as filed with NHTSA.
at 217,000 milesSeattle, WA
POWER TRAIN
Odometer Fraud. The contact owns a 2008 Kia Optima. The contact stated that the check engine warning light was illuminated. The vehicle was taken to an independent mechanic, who diagnosed the vehicle's transmission failure. The contact discovered a mileage discrepancy after purchasing the vehicle. The vehicle was a dealer sale. At the time of purchase, the mileage was 198,000. It was later discovered that the mileage on the Title was 217,000.
NHTSA complaint #11716258 — an unverified report by a vehicle owner.
at 217,000 milesSeattle, WA
ENGINE
Odometer Fraud. The contact owns a 2008 Kia Optima. The contact stated that the check engine warning light was illuminated. The vehicle was taken to an independent mechanic, who diagnosed the vehicle's transmission failure. The contact discovered a mileage discrepancy after purchasing the vehicle. The vehicle was a dealer sale. At the time of purchase, the mileage was 198,000. It was later discovered that the mileage on the Title was 217,000.
NHTSA complaint #11716258 — an unverified report by a vehicle owner.
Odometer Fraud. The contact owns a 2008 Kia Optima. The contact stated that the check engine warning light was illuminated. The vehicle was taken to an independent mechanic, who diagnosed the vehicle's transmission failure. The contact discovered a mileage discrepancy after purchasing the vehicle. The vehicle was a dealer sale. At the time of purchase, the mileage was 198,000. It was later discovered that the mileage on the Title was 217,000.
NHTSA complaint #11716258 — an unverified report by a vehicle owner.
Portland, OR
AIR BAGS
Occupant airbag sensor doesn't recognize whether someone is sitting or not. The occupant airbag sensor light goes on and off whether there is a passenger sitting on the seat or not. Kia has extended warranty on this issue however it doesn't let customer know about this part is defected. I was doing my research how to fix the issue and learn that kia had extended warranty for 15 years from the first day of service. the warranty currently expired right now. if I knew there was a warranty, I would go to dealer to fix the issue the day that my wife bought the car.
NHTSA complaint #11671023 — an unverified report by a vehicle owner.
Haysville, KS
POWER TRAIN
Power train: at low idle or while slowing down, the car will lose power for a minute until you get on the accelerator and it all comes back on. Alternator had been replaced. And is going to be replaced again soon. Not sure if it's just a bad part. Power steering pump was replaced. The pulley seized. Unrelated. Lighting: third brake light constantly flickers. All Lighting including head lights flicker on and off. Worse when slowing down. Lights on dash board, dome, rear light and head light Bulbs have been replaced. At night when the head lights flicker I cannot see the road. Airbags: the air bag light on dash is always on. Codes have been ran and there are so many. Tried resetting codes it comes back on soon after. Not sure how to go about trying to fix it. All of this has been happening since I purchased the car in November 2024.
NHTSA complaint #11645823 — an unverified report by a vehicle owner.
Haysville, KS
AIR BAGS
Power train: at low idle or while slowing down, the car will lose power for a minute until you get on the accelerator and it all comes back on. Alternator had been replaced. And is going to be replaced again soon. Not sure if it's just a bad part. Power steering pump was replaced. The pulley seized. Unrelated. Lighting: third brake light constantly flickers. All Lighting including head lights flicker on and off. Worse when slowing down. Lights on dash board, dome, rear light and head light Bulbs have been replaced. At night when the head lights flicker I cannot see the road. Airbags: the air bag light on dash is always on. Codes have been ran and there are so many. Tried resetting codes it comes back on soon after. Not sure how to go about trying to fix it. All of this has been happening since I purchased the car in November 2024.
NHTSA complaint #11645823 — an unverified report by a vehicle owner.
Haysville, KS
EXTERIOR LIGHTING
Power train: at low idle or while slowing down, the car will lose power for a minute until you get on the accelerator and it all comes back on. Alternator had been replaced. And is going to be replaced again soon. Not sure if it's just a bad part. Power steering pump was replaced. The pulley seized. Unrelated. Lighting: third brake light constantly flickers. All Lighting including head lights flicker on and off. Worse when slowing down. Lights on dash board, dome, rear light and head light Bulbs have been replaced. At night when the head lights flicker I cannot see the road. Airbags: the air bag light on dash is always on. Codes have been ran and there are so many. Tried resetting codes it comes back on soon after. Not sure how to go about trying to fix it. All of this has been happening since I purchased the car in November 2024.
NHTSA complaint #11645823 — an unverified report by a vehicle owner.
Boaz, AL
AIR BAGS
Air bag line came on, dealer states is clock spring.
NHTSA complaint #11526018 — an unverified report by a vehicle owner.
Wellington, OH
AIR BAGS
have taken my kia to halleen kia sandusky dealership for safety recall driver air bags, and to assess my subframe. was turned away because they said the subframe of my car was too rusty and they "didn't feel safe letting their technicians do repairs as per safety recalls" and would not investigate the cars subframe.
NHTSA complaint #11501217 — an unverified report by a vehicle owner.
Wellington, OH
STRUCTURE:BODY
have taken my kia to halleen kia sandusky dealership for safety recall driver air bags, and to assess my subframe. was turned away because they said the subframe of my car was too rusty and they "didn't feel safe letting their technicians do repairs as per safety recalls" and would not investigate the cars subframe.
NHTSA complaint #11501217 — an unverified report by a vehicle owner.
Wellington, OH
FUEL/PROPULSION SYSTEM
have taken my kia to halleen kia sandusky dealership for safety recall driver air bags, and to assess my subframe. was turned away because they said the subframe of my car was too rusty and they "didn't feel safe letting their technicians do repairs as per safety recalls" and would not investigate the cars subframe.
NHTSA complaint #11501217 — an unverified report by a vehicle owner.
Severn, MD
Other/I am not sure
Many times the base unit does not properly accept the car seat. Setting the car seat on the base will not click in and lock. After more than a dozen or so events the base refuses to accept the car seat and I have had to user other methods to fasten the car seat.
NHTSA complaint #11490271 — an unverified report by a vehicle owner.
Grimes, IA
AIR BAGS
This car have a Warranty Extension for OCS Sensor Mat. Warranty extension dated June 2016 Airbag light was first turned on in August 2020 Went to the dealer and said it was related to seat buckle and got it fixed Airbag light again turned on in August 2021 Went to the dealer and said it was related to clock spring and that the driver seat needs to be replaced, which would take time and did not get repaired In November 2021, the airbag light got turned off by itself I am very concerned whether the air bag for my car is really working.
NHTSA complaint #11444039 — an unverified report by a vehicle owner.
Grimes, IA
AIR BAGS
I had my airbag light turned on last year and the dealership fixed the issue. Within a year, the airbag light got turned on again and now they say that it is related to the clock spring and is not covered in the extended warranty.This is a part that should not fail and very important for the safety and security of the driver and the other passengers.
NHTSA complaint #11437742 — an unverified report by a vehicle owner.
Horizon City, TX
UNKNOWN OR OTHER
I bought my car in 2008 a Kia optima lx I stored it till 2021. But in 2013 i took my car to El Paso tx. And I felt that beer to the side and stored it again in a garage toil this it's only got 6000 miles can it still qualify for a recall
NHTSA complaint #11432605 — an unverified report by a vehicle owner.
Horizon City, TX
SUSPENSION
I bought my car in 2008 a Kia optima lx I stored it till 2021. But in 2013 i took my car to El Paso tx. And I felt that beer to the side and stored it again in a garage toil this it's only got 6000 miles can it still qualify for a recall
NHTSA complaint #11432605 — an unverified report by a vehicle owner.
Horizon City, TX
ENGINE
I bought my car in 2008 a Kia optima lx I stored it till 2021. But in 2013 i took my car to El Paso tx. And I felt that beer to the side and stored it again in a garage toil this it's only got 6000 miles can it still qualify for a recall
NHTSA complaint #11432605 — an unverified report by a vehicle owner.
Wichita, KS
POWER TRAIN:AUTOMATIC TRANSMISSION:LEVER AND LINKAGE:FLOOR SHIFT
I went to back out of my driveway and ended up in the middle of the road and not able to shift into drive. The dash shows that I am currently stuck in neutral and am not able to change gears. I looked up recalls and I see that there is a Power Train: Automatic Transmission Lever and Linkage Column shift recall from March 2011. I bought this car in June 2011. When I and the Kia dealership here in town look up my VIN number, it is not showing any recalls currently. How do I go about getting this fixed if it is in fact the exact issue from the Recall no: 11V153000? The dealership would not even look at the recall information I have found. I have not had any issues related to this until yesterday afternoon. I ended up pushing my car up into my driveway for now.
NHTSA complaint #11422440 — an unverified report by a vehicle owner.
Chesapeake, VACrash
POWER TRAIN
While driving, I tried to reverse my vehicle and it got stuck in drive , and wouldn't and my gear shift no longer responded to the gear and my vehicle was locked in place in drive mode.
NHTSA complaint #11419355 — an unverified report by a vehicle owner.
Chesapeake, VA
POWER TRAIN
My vehicle locked up while turning around in a driveway so I could park at my daughter's house on the street. It was working fine before that. It got stuck in the drive mode and then I couldn't get it to start or move. I'm referring to NHTSA Campaign ID # 11V15300. I am currently stuck at my daughter's home in Norfolk, Virginia
NHTSA complaint #11419363 — an unverified report by a vehicle owner.
at 134,000 milesStruthers, OH
POWER TRAIN
TL* THE CONTACT OWNS A 2008 KIA OPTIMA. THE CONTACT STATED THAT WHILE HIS DAUGHTER WAS PARKING THE VEHICLE, THE SHIFTER CABLE DETACHED AND THE VEHICLE KEPT ROLLING. THE CONTACT STATED THAT THE GEAR SHIFTER WAS IN PARK BUT THE TRANSMISSION WAS STILL IN DRIVE POSITION. THE CONTACT STATED THAT HIS DAUGHTER HAD TO USE THE EMERGENCY BRAKE TO STOP THE VEHICLE. THE CONTACT STATED THAT HE TEMPORARY FIX THE VEHICLE AND LATER THE VEHICLE WAS TAKEN TO TAYLOR KIA OF BOARDMAN, 7870 MARKET ST, YOUNGSTOWN, OH 44512, AND WAS DIAGNOSED THAT THE ENTIRE SHIFT CABLE NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND REFERRED THE CONTACT TO NHTSA. THE FAILURE MILEAGE WAS APPROXIMATELY 134,000.
NHTSA complaint #11389007 — an unverified report by a vehicle owner.
at 100,000 milesLOS Angeles, CACrash1 injured
AIR BAGS
I WAS DRIVING SOUTHBOUND ON SEPULVEDA BLVD ON SEP 6 AT 0800AM AND I WAS OVER HALFWAY THROUGH THE GREEN LIGHT WHEN I WAS STRUCK BY A TOYOTA MAKING A LEFT TURN ON A GREEN LIGHT WHO DID NOT YIELD. THE DRIVER [XXX] STRUCK MY CAR ON THE FRONT AND LEFT DRIVER BUMPER AND FENDER CAUSING EXTENSIVE DAMAGE. HE FAILED TO YIELD, LIED ABOUT IT AND THE FRONT AND SIDE AIR BAGS DID NOT DEPLOY. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).
NHTSA complaint #11386753 — an unverified report by a vehicle owner.
at 100,000 milesLOS Angeles, CACrash1 injured
EXTERIOR LIGHTING
I WAS DRIVING SOUTHBOUND ON SEPULVEDA BLVD ON SEP 6 AT 0800AM AND I WAS OVER HALFWAY THROUGH THE GREEN LIGHT WHEN I WAS STRUCK BY A TOYOTA MAKING A LEFT TURN ON A GREEN LIGHT WHO DID NOT YIELD. THE DRIVER [XXX] STRUCK MY CAR ON THE FRONT AND LEFT DRIVER BUMPER AND FENDER CAUSING EXTENSIVE DAMAGE. HE FAILED TO YIELD, LIED ABOUT IT AND THE FRONT AND SIDE AIR BAGS DID NOT DEPLOY. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).
NHTSA complaint #11386753 — an unverified report by a vehicle owner.
at 100,000 milesLOS Angeles, CACrash1 injured
STRUCTURE:BODY
I WAS DRIVING SOUTHBOUND ON SEPULVEDA BLVD ON SEP 6 AT 0800AM AND I WAS OVER HALFWAY THROUGH THE GREEN LIGHT WHEN I WAS STRUCK BY A TOYOTA MAKING A LEFT TURN ON A GREEN LIGHT WHO DID NOT YIELD. THE DRIVER [XXX] STRUCK MY CAR ON THE FRONT AND LEFT DRIVER BUMPER AND FENDER CAUSING EXTENSIVE DAMAGE. HE FAILED TO YIELD, LIED ABOUT IT AND THE FRONT AND SIDE AIR BAGS DID NOT DEPLOY. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).
NHTSA complaint #11386753 — an unverified report by a vehicle owner.
at 88,000 milesRobstown, TX
UNKNOWN OR OTHER
I HAD TO HAVE MY 2008 OPTIMA TAKEN TO THE ONLY DEALERSHIP IN TOWN FOR A BROKEN SHIFTING CABLE. I WENT ON THE INTERNET FOR SOME INFORMATION AND I READ THAT OPTIMA HAS HAD SEVERAL PROBLEMS OVER THE YEARS WITH THE SHIFTING CABLE ON THE CAR OVER DIFFERENT YEARS. INTERNET IS SAYING THAT AT THE END OCTOBER THAT KIA IS GOING TO ANNOUNCE THAT INSTALL SHIFTING CABLE INCORRECTLY.
NHTSA complaint #11365615 — an unverified report by a vehicle owner.