RoadVitals

2010 Kia Optima Problems

Owner-reported complaints filed with NHTSA, grouped by component

Data refreshed

Owner complaintsComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
75
Latest Mar 7, 2026
Components namedHow many of our component categories appear on at least one report for this model year. One report can name several.
15
Crash or fire reportedComplaints whose submitter recorded that a crash or a fire occurred. These are the reporter's own answers on the NHTSA form, not verified findings.
9

What this page shows

Everything below is an owner-reported complaint submitted to NHTSA about the 2010 Kia Optima, grouped by the component NHTSA recorded on the report. These are not confirmed defects, and they are not recalls. NHTSA does not verify most reports before publishing them, and a category with more reports in it is not evidence that a part is defective.

Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.

Reports by component

Ranked by how many owner reports name each component category

Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.

Each component in detail

What the reports in each category say, in the owners' own words

Powertrain (other)

Powertrain reports that are not specifically the engine or transmission — driveshafts, axles, transfer cases and differentials.

24
reports

From owner reports, verbatim

The car lurches or jerks when slowing down or stopping at about 20 mph . Lurch or jerking is enough to jerk to the driver . Has anyone got answer to why the Kia Optima 2010 does this.

NHTSA ID 11452917 · filed Feb 18, 2022

Car has very hard downshift at low speed going from 2nd gear to 1st. Seems to be alot of these complaints and would be nice to know of a fix for this problem!

NHTSA ID 11418644 · filed May 26, 2021
All 24 reports naming powertrain (other)

Airbags

Reports naming the air-bag system — deployment behaviour, inflators, sensors and warning lights.

17
reports

From owner reports, verbatim

TL* THE CONTACT OWNS A 2010 KIA OPTIMA. THE CONTACT STATED THAT THE AIR BAG WARNING LIGHTS WERE ILLUMINATED. GERVAIS KIA (6 INDUSTRIAL AVE, LOWELL, MA 01851, (978)454-1202) WAS CONTACTED AND INFORMED OF THE FAILURE. THE CONTACT WAS INFORMED THAT THE SEAT OCCUPANT DETECTION SYSTEM NEEDED TO BE REPLACED AT A COST OF $5,000. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 100,000.

NHTSA ID 11331104 · filed Jun 26, 2020

AIRBAG LIGHT CAME ON AND SAYS I NEED TO REPLACE THE AIRBAGS IN THE PASSENGER SEAT. NOW AIRBAG SYSTEM IS DISENGAGED.

NHTSA ID 11255422 · filed Sep 13, 2019
All 17 reports naming airbags

Electrical

Reports naming the electrical system — wiring, battery, charging, control modules, infotainment and electrical accessories.

14
reports

From owner reports, verbatim

1.We were driving and the car just cut off. Not from the lack of fuel but cut off in the middle of traffic. (Available for inspection) 2.The car stopping in traffic running about 65 mph causes the safety of all on the highway. A very dangerous situation. 3. The problem has showed itself numerous times. 4. The car had been inspected/checked after the incident. There was no errors on the computer after diagnosis. 5. No errors nor warning lights prior the incident. After the incident, the car cranks right back up without error.

NHTSA ID 11646102 · filed Mar 3, 2025

Car would not engage into “Park” while attempting to park car in driveway. Shifter would not engage in any gear. Tried to reset button in center console. Contacted mechanic, he towed to garage. Plastic clip connected to cable broke. Earlier Kia’s had a recall due to this issue, why not all Kias due to it is still happening. I was very fortunate that this happened to me in my driveway and not on the highway. I understand there is the same part at the other end of the cable, connects to transmission and shifter, if it also breaks it is going to be very expensive to repair due to placement of the part. I had to rent a vehicle for work while part had to be ordered and replaced.

NHTSA ID 11533397 · filed Jul 20, 2023
All 14 reports naming electrical

Engine

Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components.

11
reports

From owner reports, verbatim

The engine on my 2010 Kia Optima suddenly seized without warning around 150,000 miles. The vehicle had no knocking sounds or warning signs prior to failure. A mechanic diagnosed the vehicle with a seized engine. This created a sudden loss of vehicle operation. I am concerned this may be related to the known engine failure issues reported in Kia vehicles.

NHTSA ID 11722673 · filed Mar 7, 2026

1.We were driving and the car just cut off. Not from the lack of fuel but cut off in the middle of traffic. (Available for inspection) 2.The car stopping in traffic running about 65 mph causes the safety of all on the highway. A very dangerous situation. 3. The problem has showed itself numerous times. 4. The car had been inspected/checked after the incident. There was no errors on the computer after diagnosis. 5. No errors nor warning lights prior the incident. After the incident, the car cranks right back up without error.

NHTSA ID 11646102 · filed Mar 3, 2025
All 11 reports naming engine

Driver assistance

Reports naming forward-collision avoidance, lane keeping, back-over prevention, cruise control and related electronic driver-assistance systems.

8
reports

From owner reports, verbatim

I was getting ready to go out of town for work so before I left my home town. I went to a place to get my oil change. Before going everything was fine. I left there and literally 5 minutes after my car killed. Once it start back. The motor start making a noise it’s been parked

NHTSA ID 11640182 · filed Feb 2, 2025

ENGINE BLEW DOING 40-45 ON A COUNTY ROAD 1,000 RPM 5TH GEAR, IN AUTOMATIC. 2ND TO 1ST, SOFT TO HARD KICK. VEHICLE SPEED SENSOR MUST BE FAULTY I HAVE TO PUMP BRAKE MORE TO SLOW THE ENGINE SPEED IT LIKES TO BOG TRYING TO SPEED UP IN AUTOMATIC MODE

NHTSA ID 11403364 · filed Mar 16, 2021
All 8 reports naming driver assistance

Brakes

Reports naming service brakes, the antilock braking system, brake hoses, master cylinders or the parking brake.

4
reports

From owner reports, verbatim

Car would not engage into “Park” while attempting to park car in driveway. Shifter would not engage in any gear. Tried to reset button in center console. Contacted mechanic, he towed to garage. Plastic clip connected to cable broke. Earlier Kia’s had a recall due to this issue, why not all Kias due to it is still happening. I was very fortunate that this happened to me in my driveway and not on the highway. I understand there is the same part at the other end of the cable, connects to transmission and shifter, if it also breaks it is going to be very expensive to repair due to placement of the part. I had to rent a vehicle for work while part had to be ordered and replaced.

NHTSA ID 11533397 · filed Jul 20, 2023

LOUD GRINDING NOISE DEVELOPED IN RIGHT REAR BRAKE. UPON HIS EXAMINATION, MECHANIC FOUND RIGHT REAR BRAKE CALIPER FROZEN IN THE ENGAGED OR CLOSED POSITION. ALSO, LEFT REAR BRAKE CALIPER FOUND TO BE FROZEN IN THE DISENGAGED OR OPEN POSITION. IN ESSENCE, BOTH REAR BRAKES WERE INOPERABLE! WE WERE DRIVING A CAR THAT ONLY HAD FRONT BRAKES FUNCTIONING PROPERLY. OUR MECHANIC COULDN'T REMEMBER A CASE WHERE BOTH REAR BRAKES WERE INOPERABLE ON A CAR. WE BELIEVE THIS PROBLEM TO BE UNACCEPTABLE AND EXTREMELY DANGEROUS ON A VEHICLE WITH ONLY 74,314 MILES AND ONLY 5 YEARS OLD.

NHTSA ID 10747305 · filed Aug 9, 2015

Too few reports in this category for a page of its own — they appear in the full complaint list.

Interior & seats

Reports naming seats, latches, locks, linkages and interior fittings.

3
reports

From owner reports, verbatim

OUR VEHICLE STARTED ONLY UNLOCKING THE 3 PASSENGER SIDE DOORS, WHEN USING THE KEYFOB TO UNLOCK. THE DRIVERS DOOR WILL STAY LOCKED AND YOU HAVE TO MANUALLY UNLOCK VEHICLE WITH KEY. NOW 2 OF OUR OTHER DOORS(BOTH REAR) DONT UNLOCK. ALL THE DOORS DO NOT LOCK WITH THE KEYFOB AND WHEN WE PUSH THE LOCK BUTTON INSIDE THE VEHICLE. WE HAVE TO MANUALLY LOCK/UNLOCK THE DOORS, WHICH IS A PAIN IN THE BUTT WHEN YOU HAVE SMALL CHILDREN! *TR

NHTSA ID 10638485 · filed Sep 23, 2014

DRIVER DOOR FAILS TO UNLOCK WHEN REMOTE IS PRESSED TO UNLOCK BUT WILL UNLOCK ALL OTHER DOORS. THE DRIVERS DOOR AND ALL OTHER DOORS WILL LOCK WITH REMOTE BUT ONLY THE DRIVERS DOOR WILL NOT UNLOCK. *TR

NHTSA ID 10587529 · filed May 9, 2014

Too few reports in this category for a page of its own — they appear in the full complaint list.

Seat belts

Reports naming seat belts, buckles, retractors and pretensioners.

3
reports

From owner reports, verbatim

TL* THE CONTACT OWNS A 2010 KIA OPTIMA. WHILE THE VEHICLE WAS OPERATED, THE PASSENGER NOTICED THAT THE SEAT BELT WAS NOT CONNECTED. THE WARNING CHIME DID NOT INDICATE THAT THE SEAT BELT WAS NOT LATCHED. THE VEHICLE WAS TAKEN TO THE DEALER WHERE THE SERVICE MANAGER DIAGNOSED THAT THE FAILURE WAS INHERENT TO THE VEHICLE. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 70,500.

NHTSA ID 10876351 · filed Jun 24, 2016

WHILE SITTING AT A TRAFFIC LIGHT, A VEHICLE REAR-ENDED MY 2010 KIA OPTIMA. THE DRIVER HIT MY KIA SO HARD, I HIT THE MUSTANG IN FRONT OF ME. NO AIR BAGS DEPLOYED UPON EITHER IMPACT. KIA WAS DRIVABLE, BUT THERE WERE NOTICEABLE DIFFERENCES IN THE WAY THE CAR DROVE (I.E. STARTED PULLING TO THE RIGHT, WHEEL SHAKING, ETC). THIS WAS THE EVENING OF 01/23/2014. ON 01/29/2014, THE STEERING WHEEL LOCKED UP AND COLLIDED WITH A PARKED VEHICLE (TOTALING THE KIA) @ 28-30 MPH. AGAIN AIR BAGS DID NOT DEPLOY, AND THE IMPACT LIFTED ME UP AND MY HEAD SHATTERED THE WINDSHIELD FROM THE TOP. SEAT BELT WAS IN USE, BUT DID NOT LOCK UPON IMPACT, FAILING TO SECURE MY BODY. MAJOR CONCUSSION RECEIVED ALONG WITH MULTIPLE BRUISES, CUTS, AND SCRAPES. INVESTIGATION UNABLE TO DETERMINE THE CAUSE OF THE STEERING MALFUNCTION DUE TO THE EXTENT OF THE DAMAGE. *TR

NHTSA ID 10562433 · filed Jan 31, 2014

Too few reports in this category for a page of its own — they appear in the full complaint list.

Exterior lighting

Reports naming headlights, tail lights, turn signals and other exterior lighting.

2
reports

From owner reports, verbatim

AIR BAG LIGHTS WILL NOT GO OFF DEALER RESET BUT CAME BACK ON SOON AFTERWARDS. ANOTHER DEALER SAID IT WAS NOT COVERED UNDER WARRANTY AND PART WAS OVER $1000. MULTIPLE DEAD CAR BATTERIES DUE TO RUNNING LIGHTS NOT TURNING OFF AFTER YOU PARK THE CAR. PLEASE FOR THE LOVE OF EVERYTHING GOOD IN THIS WORLD JUST RECALL AND FIX ALREADY.

NHTSA ID 10934582 · filed Dec 12, 2016

TL* THE CONTACT OWNS A 2010 KIA OPTIMA. THE CONTACT STATED THAT THE VEHICLE DOWNSHIFTED VIOLENTLY. THE VEHICLE WAS TAKEN TO A PRIVATE MECHANIC WHERE THE FAILURE WAS CONFIRMED. THE CONTACT ALSO MENTIONED THAT THE PASSENGER SIDE LOW BEAM HEADLIGHT FAILED DUE TO THE A FAILED WIRE. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS CONTACTED AND INFORMED THE CONTACT THAT THE VEHICLE WAS NOT INCLUDED IN THE MANUFACTURER'S RECALL. THE FAILURE MILEAGE WAS APPROXIMATELY 100,000.

NHTSA ID 10561329 · filed Jan 24, 2014

Too few reports in this category for a page of its own — they appear in the full complaint list.

Body & structure

Reports naming the vehicle structure, frame, body panels, doors, hood and trim.

2
reports

From owner reports, verbatim

THE WEATHER STRIP ON THE WINDSHIELD ON THE DRIVER SIDE JUST STRARTED LIFTING UP AND COMING OFF AS I WAS DRIVING DOWN THE ROAD. I CHECKED THE DAMAGE AND SAW THE BLACK PIECE COMPLETELY OFF OF THE WINDSHIELD. IT CONTINUED TO LIFT MORE AS I DROVE. WHEN IT RAINED I BELIEVE WATER IS NOW IN THE SENSORS BECAUSE MY ODOMETER ONLY READS "ECO" ABOVE THE ACTUAL ODOMETER READING. IT BECAME SUCH A HAZARD WHILE DRIVING I HAD TO TAPE DOWN THE WEATHER STRIP JUST TO KEEP IT FROM FULLY COMING OFF MY CAR AND CAUSING FURTHER PAINT DAMAGE TO THE SIDE IT SMACKS AGAINST. NO MECHANIC WILL FIX THE ISSUE DUE TO BEING A MAUFACTURE ERROR AND I WOULD HAVE TO REPLACE THE ENTIRE WINDSHIELD IF I DID IT MYSELF. I HAVE CALLED KIA MANUFACTORS IN GA ONLY TO BE PLACED TO VOICEMAIL WITHOUT RESPONSE. I ASKED THE DEALERSHIP I BOUGHT THE CAR FROM AND THEY ALSO SAID TO CALL KIA.

NHTSA ID 10807726 · filed Dec 1, 2015

VARIOUS DOORS WILL NOT PROPERLY LOCK/UNLOCK FROM THE ELECTRIC SWITCH AND THE KEY FOB. THIS IS AN INTERMENT FAILURE AFFECTING MULTIPLE DOORS IN THE VEHICLE. DIFFERENT DOORS LOCKS ARE FAILING AT DIFFERENT TIMES, BOTH LOCKING AND UNLOCKING. BASED ON MY RESEARCH ON THE INTERNET, THIS AFFECTS A SIGNIFICANT NUMBER OF 2005 TO 2010 OPTIMAS. THIS DEFECT COULD CAUSE OCCUPANTS TO BE TRAPPED IN THE EVENT OF AN ACCIDENT OR EMERGENCY.

NHTSA ID 10749374 · filed Aug 18, 2015

Too few reports in this category for a page of its own — they appear in the full complaint list.

Visibility

Reports naming windshields, glass, wipers, defrosters and mirrors.

2
reports

From owner reports, verbatim

THE WEATHER STRIP ON THE WINDSHIELD ON THE DRIVER SIDE JUST STRARTED LIFTING UP AND COMING OFF AS I WAS DRIVING DOWN THE ROAD. I CHECKED THE DAMAGE AND SAW THE BLACK PIECE COMPLETELY OFF OF THE WINDSHIELD. IT CONTINUED TO LIFT MORE AS I DROVE. WHEN IT RAINED I BELIEVE WATER IS NOW IN THE SENSORS BECAUSE MY ODOMETER ONLY READS "ECO" ABOVE THE ACTUAL ODOMETER READING. IT BECAME SUCH A HAZARD WHILE DRIVING I HAD TO TAPE DOWN THE WEATHER STRIP JUST TO KEEP IT FROM FULLY COMING OFF MY CAR AND CAUSING FURTHER PAINT DAMAGE TO THE SIDE IT SMACKS AGAINST. NO MECHANIC WILL FIX THE ISSUE DUE TO BEING A MAUFACTURE ERROR AND I WOULD HAVE TO REPLACE THE ENTIRE WINDSHIELD IF I DID IT MYSELF. I HAVE CALLED KIA MANUFACTORS IN GA ONLY TO BE PLACED TO VOICEMAIL WITHOUT RESPONSE. I ASKED THE DEALERSHIP I BOUGHT THE CAR FROM AND THEY ALSO SAID TO CALL KIA.

NHTSA ID 10807726 · filed Dec 1, 2015

I LIVE IN IOWA AND WE GOT 6 INCHES OF SNOW.... WENT TO CLEAN THE SNOW OFF MY CAR WITH THE BRUSH PART OF SNOW BRUSH AND WHILE DOING THAT WAS ALSO WARMING UP MY CAR AND AS I WAS CLEANING OFF THE BACK WINDSHIELD I NOTICED A HOLE IN THE WINDOW..... MY BACK WINDOW NOT ONLY HAD A HOLE IN IT BUT SHATTERED!! HOW DOES THIS HAPPEN?!?! I DID NOTHING WRONG!!! NOTHING I HAVEN'T DONE A MILLION TIMES BEFORE AND WHY AM I RESPONSIBLE FOR PAYING FOR THIS?!?!? *TR

NHTSA ID 10680355 · filed Feb 1, 2015

Too few reports in this category for a page of its own — they appear in the full complaint list.

Steering

Reports naming the steering system — racks, columns, power-steering assist and steering linkage.

2
reports

From owner reports, verbatim

MY OPTIMA HAS 104,000 MILES. JUST LAST WEEK WHILE DRIVING ON WET ROADS, I LOST CONTROL AS THE POWER STEERING STOPPED WORKING. THE BATTERY LIGHT COMES ON DURING THIS PERIOD FOR BETWEEN 5-30 SECONDS AS YOU LOOSE ALMOST ALL CONTROL OF YOUR VEHICLE'S STEERING. JUST AS YOUR VEHICLE GAINS POWER STEERING AGAIN, A SCREECHING SOUNDS COMES FROM THE ENGINE COMPARTMENT (MAYBE BELTS RE-ENGAGING). IT HAS BEEN RAINING HER THE PAST WEEK AND THE ISSUE HAS HAPPENED ABOUT 8 TIMES. SOMETIMES DIRECTLY AFTER DRIVING THROUGH PUDDLES, AND SOMETIMES JUST WHILE DRIVING. THE ISSUE ONLY OCCURS THOUGH WHEN THE ROADS ARE WET. THIS IS A MAJOR SAFETY ISSUE.

NHTSA ID 11311465 · filed Feb 25, 2020

WHILE SITTING AT A TRAFFIC LIGHT, A VEHICLE REAR-ENDED MY 2010 KIA OPTIMA. THE DRIVER HIT MY KIA SO HARD, I HIT THE MUSTANG IN FRONT OF ME. NO AIR BAGS DEPLOYED UPON EITHER IMPACT. KIA WAS DRIVABLE, BUT THERE WERE NOTICEABLE DIFFERENCES IN THE WAY THE CAR DROVE (I.E. STARTED PULLING TO THE RIGHT, WHEEL SHAKING, ETC). THIS WAS THE EVENING OF 01/23/2014. ON 01/29/2014, THE STEERING WHEEL LOCKED UP AND COLLIDED WITH A PARKED VEHICLE (TOTALING THE KIA) @ 28-30 MPH. AGAIN AIR BAGS DID NOT DEPLOY, AND THE IMPACT LIFTED ME UP AND MY HEAD SHATTERED THE WINDSHIELD FROM THE TOP. SEAT BELT WAS IN USE, BUT DID NOT LOCK UPON IMPACT, FAILING TO SECURE MY BODY. MAJOR CONCUSSION RECEIVED ALONG WITH MULTIPLE BRUISES, CUTS, AND SCRAPES. INVESTIGATION UNABLE TO DETERMINE THE CAUSE OF THE STEERING MALFUNCTION DUE TO THE EXTENT OF THE DAMAGE. *TR

NHTSA ID 10562433 · filed Jan 31, 2014

Too few reports in this category for a page of its own — they appear in the full complaint list.

Suspension

Reports naming suspension components — springs, struts, shocks, control arms and related hardware.

1
report

From owner reports, verbatim

VEHICLE HAS A TERRIBLE RATTLE COMING FROM THE REAR END WHILE DRIVING AND THE VEHICLE MOVES FROM SIDE TO SIDE. NOT SURE WHAT IT IS. BOUGHT IN 2016

NHTSA ID 11259003 · filed Sep 30, 2019

Too few reports in this category for a page of its own — they appear in the full complaint list.

Tires & wheels

Reports naming tires, wheels, hubs, or the tire-pressure monitoring system.

1
report

From owner reports, verbatim

TL* THE CONTACT OWNS A 2010 KIA OPTIMA. THE CONTACT STATED THAT UPON PURCHASING THE VEHICLE, HE NOTICED THAT IT WAS NOT EQUIPPED WITH A SPARE TIRE, JACK, OR LUG NUT WRENCH. THE MANUFACTURER WAS NOTIFIED AND THEY STATED THAT THEY WOULD NOT SUPPLY THE CONTACT WITH THE MISSING ITEMS BECAUSE THE VEHICLE EXHIBITS BETTER FUEL EFFICIENCY WITHOUT THEM. THE CONTACT DID NOT FEEL SAFE DRIVING THE VEHICLE WITHOUT THE MISSING EQUIPMENT. THE FAILURE AND CURRENT MILEAGES WERE 1,500.

NHTSA ID 10446151 · filed Feb 1, 2012

Too few reports in this category for a page of its own — they appear in the full complaint list.

Fuel system

Reports naming fuel storage or delivery — tanks, pumps, lines, injectors and fuel leaks.

1
report

From owner reports, verbatim

WHEN ACCELERATING OR SLOWING DOWN MY VEHICLE JERK EVEN WHEN I'M ON THE HIGHWAY AND HAVE THE CRUISE CONTROL SET IT WILL DO THE SAME THING. I WOULD LIKE TO KNOW WHAT I NEED TO DO OR IF THERE IS ANY KIND OF RECALL ON THIS BECAUSE I REALLY CAN'T AFFORD TO TAKE IT AND HAVE IT LOOKED AT. I HAVE SEEN MULTIPLE REPORTS OF THE SAME PROBLEM AND WITH ALL OF THE REPORT I DON'T SEE HOW KIA HAS NOT DONE ANYTHING ABOUT IT.

NHTSA ID 10934080 · filed Dec 9, 2016

Too few reports in this category for a page of its own — they appear in the full complaint list.

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.

Elsewhere on this vehicle

Data sources

Data on this page last refreshed .