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Model-year record

2010 Kia Optima
Image: Vehicle Photography · CC BY-SA 3.0

2010 Kia Optima

See the complaints, recalls, crash rating, and fuel economy in the public record. Then check the mileage and history of the car you found.

This page shows records, not a buy or avoid call.

The same model year can include a well-kept car and a neglected one. Use these records to plan what to check. Use the specific-car check when you know the mileage.

Complaints filed

75

Reports to NHTSA, 2010

Safety recalls

1

NHTSA campaigns on record

NHTSA crash test

Not rated

Overall NCAP rating

Combined MPG

25

EPA estimate

Known issues

Power Train issues lead owner complaints (32% of 75 reports), followed by air bags (17%).

Power Train32% · 24 reports
Air Bags17% · 13 reports
Electrical System17% · 13 reports
Engine7% · 5 reports
Unknown Or Other4% · 3 reports
Vehicle Speed Control4% · 3 reports
Engine And Engine Cooling3% · 2 reports
Latches/Locks/Linkages3% · 2 reports

+ 9 more component categories with fewer reports.

Share of all 75 NHTSA complaints for this model year, grouped by the component owners named. Bars are scaled to the largest category. Examples: ODI 10334436, ODI 11452917, ODI 11418644, ODI 11071802, ODI 11066815.

Individual complaint reports(75)

Showing the 50 most recent reports
EngineMar 2026 · ODI 11722673Details +

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.

Reported
Mar 2026
Incident date
Sep 2020
Mileage
Not provided
Outcome flags
None reported
Open ODI 11722673 at NHTSA →
Electrical SystemMar 2025 · ODI 11646102Details +

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.

Reported
Mar 2025
Incident date
Feb 2025
Mileage
Not provided
Outcome flags
None reported
Open ODI 11646102 at NHTSA →
Unknown Or OtherFeb 2025 · ODI 11640182Details +

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

Reported
Feb 2025
Incident date
Jan 2025
Mileage
Not provided
Outcome flags
None reported
Open ODI 11640182 at NHTSA →
Electrical SystemJul 2023 · ODI 11533397Details +

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.

Reported
Jul 2023
Incident date
May 2023
Mileage
Not provided
Outcome flags
None reported
Open ODI 11533397 at NHTSA →
EngineSep 2022 · ODI 11483785Details +

Rod bearing knocking noise. Vehicle stopped running when slowing down. Car is available for inspection. No warning lights come on. The rod bearing can pierce the engine and cause oil to leak and then a fire. Problem first identified by Monroe and then another independent when the car died in front of his shop- both confirmed this is a known issue with kias- but since ours is a 2010 it is not covered under the current recall for the same issue in years 2011 to 2013. I spoke with cooper Kia in Utica as I was looking for support with this issue and was told by Mike Digiovanni to call a lawyer. On a later call to Pat Stacey he said they don’t work for Kia and he stated that the salesman said I came in threatening to call a lawyer- not true- I was advised to call one. I had gone in explaining that I was upset as I thought this was a safe car for my 17 year old to travel in between college and work and it’s the same issue as the 2011-2013 recall

Reported
Sep 2022
Incident date
Sep 2022
Mileage
Not provided
Outcome flags
None reported
Open ODI 11483785 at NHTSA →
EngineMay 2022 · ODI 11466668Details +

At 134000 miles car got a knock on interstate. 5 miles to next exit a loud bang. Then the knock went to a loud loud bang. Pulled over to find rod thru block. It is a 2010 kia optima with 2.4l 1 year before the recalls with exact probelm. Full of oil and coolant. Just out of the blue.

Reported
May 2022
Incident date
May 2022
Mileage
Not provided
Outcome flags
None reported
Open ODI 11466668 at NHTSA →
Power TrainFeb 2022 · ODI 11452917Details +

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.

Reported
Feb 2022
Incident date
Jan 2022
Mileage
Not provided
Outcome flags
None reported
Open ODI 11452917 at NHTSA →
Power TrainMay 2021 · ODI 11418644Details +

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!

Reported
May 2021
Incident date
May 2021
Mileage
Not provided
Outcome flags
None reported
Open ODI 11418644 at NHTSA →
Engine And Engine CoolingMay 2021 · ODI 11417917 · fireDetails +

The contact owns a 2010 Kia Optima. The contact stated while driving 1 mph, the vehicle started overheating then there was an abnormally loud sound coming from the engine. Upon investigation, it was found that the radiator had a hole on the right side. The vehicle was not taken to a local dealer and was not diagnosed. The vehicle was not repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 135,000.

Reported
May 2021
Incident date
Feb 2021
Mileage
Not provided
Outcome flags
Fire
Open ODI 11417917 at NHTSA →
Vehicle Speed ControlMar 2021 · ODI 11403364Details +

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

Reported
Mar 2021
Incident date
Mar 2021
Mileage
Not provided
Outcome flags
None reported
Open ODI 11403364 at NHTSA →
Air BagsJun 2020 · ODI 11331104Details +

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.

Reported
Jun 2020
Incident date
Jun 2020
Mileage
Not provided
Outcome flags
None reported
Open ODI 11331104 at NHTSA →
SteeringFeb 2020 · ODI 11311465Details +

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.

Reported
Feb 2020
Incident date
Feb 2020
Mileage
Not provided
Outcome flags
None reported
Open ODI 11311465 at NHTSA →
SuspensionSep 2019 · ODI 11259003Details +

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

Reported
Sep 2019
Incident date
Nov 2016
Mileage
Not provided
Outcome flags
None reported
Open ODI 11259003 at NHTSA →
Air BagsSep 2019 · ODI 11255422Details +

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

Reported
Sep 2019
Incident date
Sep 2019
Mileage
Not provided
Outcome flags
None reported
Open ODI 11255422 at NHTSA →
EngineApr 2019 · ODI 11195570Details +

DRIVING CAR JUST SHUT OFF IN HEAVY TRAFFIC ON RD AVERAGE SPEED 40 NO WARNING LIGHTS CAME ON RESTARTED STALLED ALL THE WAY HOME AND HUGE KNOCKING SOUND

Reported
Apr 2019
Incident date
Mar 2019
Mileage
Not provided
Outcome flags
None reported
Open ODI 11195570 at NHTSA →
Vehicle Speed ControlFeb 2019 · ODI 11174898Details +

WHEN COMING TO A STOP MY CAR SHIFTS FROM 3RD TO 2ND HER VERY ABRUPTLY. IT MAKES IT FEEL AS THOUGH I'VE SLAMMED ON MY BRAKES VERY SUDDENLY. IT ALSO DOES IT WHEN I SLOW MY CAR THEN PRESS THE GAS TO ACCELERATE SOMETIMES. I'VE TAKEN MY CAR TO THE DEALERSHIP OVER 5 TIMES SINCE FIRST PURCHASED BY MY MOTHER IN 2010 AND THE DEALERSHIP ALWAYS CLAIMED TO BE UNABLE TO NOTICE THE SUDDEN JERKING. THIS JERKING HAPPENS MOSTLY ON THE STREET DUE TO MY CONTINUAL STOP AND GO, BUT IT HAS ALSO HAPPENED WHILE GETTING ON THE FREEWAY AND DURING FREEWAY TRAFFIC.

Reported
Feb 2019
Incident date
Feb 2019
Mileage
Not provided
Outcome flags
None reported
Open ODI 11174898 at NHTSA →
Unknown Or OtherOct 2018 · ODI 11143621 · fireDetails +

DRIVING HOME FROM WORK MAY7 ON I64 ST.CHARLES CO,MO.SMOKE COMING FROM UNDER HOOD AS I APPROACHED BRIDE OVER MISSOURI RIVER AND AS SOON AS I CROSSED BRIDGE IT WAS WORSE AND I CALLED HOME TO SAY MY CAR WAS ON FIRE AND I WAS GETTING OUT OF IT ,THEN I CALLED 911 AND POLICE AND FIRE DEPT FROM FROM COTTLEVILLE ARRIVER. THE CAR COMPLETELY BURNED ALL THE WAY TO THE TRUNK. T HERE WAS NO APPARENT CONDITION TO HAVE CAUSED IT TO BURN AS CAR WAS WELL MAINTAINED AND IN GOOD CONDITION

Reported
Oct 2018
Incident date
Apr 2018
Mileage
Not provided
Outcome flags
Fire
Open ODI 11143621 at NHTSA →
Air BagsJul 2018 · ODI 11112204 · crash · 1 injuriesDetails +

TL* THE CONTACT OWNS A 2010 KIA OPTIMA. THE CONTACT CALLED ON BEHALF OF THE DRIVER. WHILE DRIVING 35 MPH, THE DRIVER LOST CONTROL OF THE VEHICLE AS IT INADVERTENTLY ACCELERATED. AS A RESULT, THE DRIVER STRUCK ANOTHER VEHICLE. THE CONTACT STATED THAT THE DRIVER HAD TO TURN OFF THE VEHICLE IN ORDER FOR IT TO STOP. THE AIR BAGS DID NOT DEPLOY. THE DRIVER SUSTAINED HEAD AND LEFT LEG INJURIES THAT DID NOT REQUIRE MEDICAL ATTENTION. A POLICE REPORT WAS FILED. THE VEHICLE WAS NOT TAKEN TO A DEALER FOR DIAGNOSTIC TESTING OR REPAIRS. THE MANUFACTURER WAS NOT NOTIFIED. THE FAILURE MILEAGE WAS 24,000. *TT *TR

Reported
Jul 2018
Incident date
Dec 2017
Mileage
Not provided
Outcome flags
Crash 1 injuries
Open ODI 11112204 at NHTSA →
Air BagsMar 2018 · ODI 11079104Details +

THE PASSAGE SEAT AIR BAG LIGHT IS ON STEADY CODE STORED B1448 OCS MAT IS DEFECTIVE CAR WAS PARKED IN YARD

Reported
Mar 2018
Incident date
Mar 2018
Mileage
Not provided
Outcome flags
None reported
Open ODI 11079104 at NHTSA →
Power TrainFeb 2018 · ODI 11071802Details +

TAKATA RECALL - HARD DOWNSHIFT FROM 2ND TO 1ST, USUALLY AROUND THE 20MPH MARK! IT'S A SUDDEN JERK AS IF IT HAS BEEN SLAMMED INTO A A LOWER GEAR

Reported
Feb 2018
Incident date
Feb 2018
Mileage
Not provided
Outcome flags
None reported
Open ODI 11071802 at NHTSA →
Power TrainFeb 2018 · ODI 11066815Details +

VEHICLE JERKS WHEN DOWNSHIFTING AT ABOUT 20 MPH.

Reported
Feb 2018
Incident date
Feb 2018
Mileage
Not provided
Outcome flags
None reported
Open ODI 11066815 at NHTSA →
Power TrainNov 2017 · ODI 11047250Details +

TAKATA RECALL TRANSMISSION HAS A GRINDING AND WHINING NOISE!! BUT TRANSMISSION SHIFT GEAR SMOOTHLY. THESE NOISE WORSE AT COLD CONDITION AND TURN TO THE LEFT, AND PASSING OVER SPEEDBUMP. AS I HEARD IN THE SOUTH KOREA, THIS IS COMMON OFTEN REPORTED BY DRIVERS WHO DRIVE THIS VEHICLE. I AM TRYING TO FIGURE OUT WHAT IS GOING ON BUT ALL CAR MECHANIC COULD NOT FOUND IT. I AM VERY SCARY WHEN I DRIVING. I THINK IT COULD BE A SAFETY ISSUE IN THE FUTURE.

Reported
Nov 2017
Incident date
Sep 2017
Mileage
Not provided
Outcome flags
None reported
Open ODI 11047250 at NHTSA →
Electrical SystemApr 2017 · ODI 10980032Details +

THE IGNITION WANT TURN ALL TO WAY OFF I HAVE TO TURN IT OFF AND ON 2 OR 3 TIMES BEFORE IT WILL TURN COMPLETELY OFF SO I CAN REMOTELY LOCK THE DOOR. THE DRIVER SIDE REAR DOOR ACTUATOR WORK WHEN IT GET READY I HAVE TO UNLOCK THE DRIVER SIDE DOOR WITH KEY AND MANUALLY LOCK AND UNLOCK THE DOOR.

Reported
Apr 2017
Incident date
Jun 2016
Mileage
Not provided
Outcome flags
None reported
Open ODI 10980032 at NHTSA →
Electrical SystemDec 2016 · ODI 10934582Details +

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.

Reported
Dec 2016
Incident date
Jun 2015
Mileage
Not provided
Outcome flags
None reported
Open ODI 10934582 at NHTSA →
Unknown Or OtherDec 2016 · ODI 10934080Details +

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.

Reported
Dec 2016
Incident date
Dec 2016
Mileage
Not provided
Outcome flags
None reported
Open ODI 10934080 at NHTSA →
Electrical SystemSep 2016 · ODI 10907502Details +

THE ELECTRICAL DOOR LOCK DO NOT WORK MOST OF THE TIME.I HAVE TO OPEN THE DOOR WITH THE KEY SOMETIME.THE CAR IS STATIONARY. THIS START IN MAY 2016 AND CONTINUE.

Reported
Sep 2016
Incident date
May 2016
Mileage
Not provided
Outcome flags
None reported
Open ODI 10907502 at NHTSA →
Seat BeltsJun 2016 · ODI 10876351Details +

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.

Reported
Jun 2016
Incident date
Jun 2016
Mileage
Not provided
Outcome flags
None reported
Open ODI 10876351 at NHTSA →
Electrical SystemJun 2016 · ODI 10874930Details +

WHEN IT IS HOT AND THE SUN IS SHINING DOWN ON THE VEHICLE FOR A LONG PERIOD OF TIME, THE DRIVERS DOOR AND REAR PASSENGER DOOR LOCKS WILL NOT OPERATE FROM THE KEY FOB? WHEN IT COOLS DOWN SUCH AS EVENING OR EARLY MORNING THE LOCKS WORK JUST FINE FROM THE KEY FOB? SEEMS TO BE RELATED TO HOT OR COOL WEATHER. NO CLUE AT THIS POINT WHY I HAVE TO WORK THE LOCKS MANUALLY WHEN IT IS HOT OUTSIDE?

Reported
Jun 2016
Incident date
Mar 2016
Mileage
Not provided
Outcome flags
None reported
Open ODI 10874930 at NHTSA →
Electrical SystemApr 2016 · ODI 10861988Details +

POWER DOOR LOCKS WILL NOT WORK AT TIMES BOTH INSIDE AND WITH THE REMOTE PREVENTING ALL ABILITY TO GET OUT OF THE VEHICLE. THIS OCCURS WHEN THE CAR IS AT A STOP BOTH WHILE RUNNING AND NOT RUNNING. I GENERALLY DO NOT TRY TO OPEN THE DOORS WHILE I'M DRIVING.

Reported
Apr 2016
Incident date
Mar 2015
Mileage
Not provided
Outcome flags
None reported
Open ODI 10861988 at NHTSA →
EngineApr 2016 · ODI 10861976Details +

WHILE DRIVING HOME ONE DAY IN DECEMBER 2015, EACH TIME I APPROACHED A STOP LIGHT, YIELD SIGN OR SLOWED TO A LOW SPEED (LESS THAN 15 MPH), MY VEHICLE WOULD SHUT-OFF MULTIPLE TIMES. MY IN MOTION SPEED WAS APPROX 45 MPH WHEN NOT APPROACHING A STOP LIGHT OR YIELD SIGN. IT HAPPENED BOTH WHEN I WAS TURNING AND GOING STRAIGHT ON MAIN ROADS WITH 2-4 LANES. THE DEALERSHIP AND ANOTHER ASME CERTIFIED MECHANIC BOTH STATE ENGINE FAILURE, WHICH SEEMS TO BE A WIDESPREAD PROBLEM WITH 2.4L ENGINES MANUFACTURED BY KIA AND HYUNDAI AROUND THIS YEAR UP TO 2015.

Reported
Apr 2016
Incident date
Dec 2015
Mileage
Not provided
Outcome flags
None reported
Open ODI 10861976 at NHTSA →
Air BagsMar 2016 · ODI 10845558Details +

TAKATA RECALL. LIGHT ON CLOCK AREA SHOWED AN OFF FROM THE DAY I PURCHASED THE CAR. THE SUDDENLY ON OR ABOUT 3/6/2016 AN INDICATOR LIGHT SHOWED AN AIR BAG WARNING. I TOOK IT INTO CHAMPION AUTOMOTIVE CARE PLUS. THEY INSPECTED THE INDICATOR LIGHT AND CONTACTED THE MANUFACTURE AND STATED TO REPLACE THE PART IT WOULD COST OVER $1000.00. THE NEXT DAY THE LIGHT WENT OUT. THEN A FEW DAYS LATER A MESSAGE CAME UP THAT THE PASSENGER AIR BAGS WERE OFF. MY ENGINE WAS TURNED ON, WHEN I PUT IT IN GEAR THE OFF LIGHT WENT ON. DUE TO THE LOUSY LIGHTING THE ONLY THING YOU COULD SEE WAS THE OFF LIGHT. THE ONLY TIME I WAS MADE AWARE THERE WAS A PROBLEM IS WHEN THE INDICATOR LIGHT WENT ON.

Reported
Mar 2016
Incident date
Mar 2016
Mileage
Not provided
Outcome flags
None reported
Open ODI 10845558 at NHTSA →
Power TrainDec 2015 · ODI 10808628Details +

THE CAR HAS A LURCHING ISSUE WHEN IT SLOWS DOWN TO 20MPH WHEN THE CAR LURCHES WITH A HARD DOWN SHIFT TO 1ST GEAR. THIS PHENOMENA IS ESPECIALLY ACUTE WHEN THE CAR IS COLD OR WHEN YOU FIRST START DRIVING IT.

Reported
Dec 2015
Incident date
Nov 2015
Mileage
Not provided
Outcome flags
None reported
Open ODI 10808628 at NHTSA →
StructureDec 2015 · ODI 10807726Details +

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.

Reported
Dec 2015
Incident date
Mar 2015
Mileage
Not provided
Outcome flags
None reported
Open ODI 10807726 at NHTSA →
Electrical SystemSep 2015 · ODI 10761482Details +

WENT TO GO OUT(6:30 AM) AND FOUND THAT MY TRUNK LID WAS UNLATCHED, NOT OPEN, JUST UNLATCHED. FOUND OUT BY IT SHOWING ON MY DASHBOARD. YESTERDAY, 9/3/15, NEIGHBOR KNOCKED ON MY DOOR (2:45 PM) AND TOLD ME MY PARKING LIGHTS WERE ON. I HAD COME HOME AT 7:30 AM. I HAD GONE OUT WITH A NEIGHBOR A COUPLE OF TIMES, LIGHTS WERE NOT ON. LAST TIME WAS AROUND NOON.

Reported
Sep 2015
Incident date
Sep 2015
Mileage
Not provided
Outcome flags
None reported
Open ODI 10761482 at NHTSA →
Electrical SystemAug 2015 · ODI 10759089Details +

TL* THE CONTACT OWNS A 2010 KIA OPTIMA. THE CONTACT STATED THAT THE FOUR POWER DOOR LOCKS INTERMITTENTLY WOULD NOT LOCK OR UNLOCK WHEN ACCESSING WITH THE KEY FOB, AUTOMATIC DOOR LOCKS, OR MANUALLY. THE FAILURE OCCURRED ON SEPARATE OCCASIONS AND BECAME PROGRESSIVELY WORSE. ON ONE OCCASION, THE DRIVER HAD TO EXIT FROM ANOTHER DOOR DUE TO THE LOCK FAILURE. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC, WHO WAS UNABLE TO LOCATE THE FAILURE. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 75,000.

Reported
Aug 2015
Incident date
Feb 2015
Mileage
Not provided
Outcome flags
None reported
Open ODI 10759089 at NHTSA →
Electrical SystemAug 2015 · ODI 10749374Details +

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.

Reported
Aug 2015
Incident date
Aug 2015
Mileage
Not provided
Outcome flags
None reported
Open ODI 10749374 at NHTSA →
Service BrakesAug 2015 · ODI 10747305Details +

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.

Reported
Aug 2015
Incident date
Aug 2015
Mileage
Not provided
Outcome flags
None reported
Open ODI 10747305 at NHTSA →
Air BagsJul 2015 · ODI 10731880Details +

NOTICED AN AIRBAG LIGHT WAS ON ON THE DASH. TOOK THE CAR TO THE DEALER AND WAS TOLD THE PASSENGER SEAT AIRBAG SENSOR HAD FAILED AND THE COST TO REPAIR WOULD BE APPROXIMATELY $1800. REPAIR WAS NOT PERFORMED.

Reported
Jul 2015
Incident date
Jun 2015
Mileage
Not provided
Outcome flags
None reported
Open ODI 10731880 at NHTSA →
Electrical SystemMay 2015 · ODI 10717174Details +

TL* THE CONTACT OWNS A 2010 KIA OPTIMA. THE CONTACT STATED THAT THE AIR BAG, ABS, AND BRAKE SYSTEM WARNING LIGHTS CONTINUOUSLY ILLUMINATED. THE VEHICLE WAS TAKEN TO THE DEALER WHERE THE TECHNICIAN DIAGNOSED THAT THE AIR BAG NEEDED TO BE REPLACED. NO REPAIRS WERE MADE TO THE VEHICLE. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 81,400.

Reported
May 2015
Incident date
May 2015
Mileage
Not provided
Outcome flags
None reported
Open ODI 10717174 at NHTSA →
Air BagsMar 2015 · ODI 10692532Details +

TL*THE CONTACT OWNS A 2010 KIA OPTIMA. THE CONTACT STATED THAT THE AIR BAG WARNING LIGHT CONTINUOUSLY ILLUMINATED. THE VEHICLE WAS TAKEN TO THE DEALER WHERE IT WAS DIAGNOSED THAT THE AIR BAG SENSOR NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 68,000.

Reported
Mar 2015
Incident date
Dec 2014
Mileage
Not provided
Outcome flags
None reported
Open ODI 10692532 at NHTSA →
VisibilityFeb 2015 · ODI 10680355Details +

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

Reported
Feb 2015
Incident date
Feb 2015
Mileage
Not provided
Outcome flags
None reported
Open ODI 10680355 at NHTSA →
Power TrainDec 2014 · ODI 10661821Details +

WHILE DECELERATING, EITHER BRAKING OR COASTING, THE CAR WILL LURCH VIOLENTLY WHEN REACHING APPROXIMATELY 22 MPH. THE SEVERITY OF THE LURCH VARIES BUT IN MOST INSTANCES IT IS HARD ENOUGH TO SNAP MY NECK FORWARD. *JS

Reported
Dec 2014
Incident date
Nov 2014
Mileage
Not provided
Outcome flags
None reported
Open ODI 10661821 at NHTSA →
Electrical SystemSep 2014 · ODI 10638485Details +

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

Reported
Sep 2014
Incident date
Mar 2014
Mileage
Not provided
Outcome flags
None reported
Open ODI 10638485 at NHTSA →
Latches/Locks/LinkagesMay 2014 · ODI 10587529Details +

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

Reported
May 2014
Incident date
May 2014
Mileage
Not provided
Outcome flags
None reported
Open ODI 10587529 at NHTSA →
Air BagsFeb 2014 · ODI 10562773 · crashDetails +

TL* THE CONTACT OWNS A 2010 KIA OPTIMA. THE CONTACT STATED THAT ANOTHER VEHICLE CRASHED INTO THE REAR OF THE VEHICLE. THE AIR BAGS FAILED TO DEPLOY. THERE WERE NO INJURIES. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. A POLICE REPORT WAS NOT FILED. THE MANUFACTURER WAS NOT CONTACTED. THE FAILURE MILEAGE WAS APPROXIMATELY 63,100.

Reported
Feb 2014
Incident date
Jan 2014
Mileage
Not provided
Outcome flags
Crash
Open ODI 10562773 at NHTSA →
SteeringJan 2014 · ODI 10562433 · crash · 1 injuriesDetails +

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

Reported
Jan 2014
Incident date
Jan 2014
Mileage
Not provided
Outcome flags
Crash 1 injuries
Open ODI 10562433 at NHTSA →
Power TrainJan 2014 · ODI 10561329Details +

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.

Reported
Jan 2014
Incident date
Mar 2011
Mileage
Not provided
Outcome flags
None reported
Open ODI 10561329 at NHTSA →
Power TrainDec 2013 · ODI 10555247Details +

HARD JERK WHEN DOWNSHIFT INTO FIRST GEAR AT 20-22 MPH. I AM CONCERNED THAT THIS COULD CAUSE AN ACCIDENT ON WET, ICY OR SNOW COVERED ROADS. WHEN I ASKED THE DEALER ABOUT THIS PROBLEM, HE SAID HE HAD NOT HEARD OF IT. *TR

Reported
Dec 2013
Incident date
Nov 2013
Mileage
Not provided
Outcome flags
None reported
Open ODI 10555247 at NHTSA →
Electrical SystemDec 2013 · ODI 10554972Details +

WE HAVE BEEN HAVING ELECTRICAL ISSUES WITH OUR 2010 KIA OPTIMA, WHICH CURRENTLY HAS 45000 MILES ON IT. THE TPMS, (!) AND THE AIRBAG "OFF/ON" LIGHTS ALL GO OFF AND ON CONTINUALLY. THEY WILL BE ON FOR A FEW DAYS, THEN GO OFF AND STAY OFF FOR AN UNDETERMINED AMOUNT OF TIME. THE BRAKES ALSO JERK OUR CAR VERY ROUGHLY FORWARD WHEN WE ARE BRAKING. EVEN IF WE ARE GOING 5 MPH, WE PRESS ON THE BRAKES, THEN THE CAR GIVES A BIG JERK BEFORE IT COMES TO A COMPLETE STOP. *TR

Reported
Dec 2013
Incident date
Sep 2013
Mileage
Not provided
Outcome flags
None reported
Open ODI 10554972 at NHTSA →
Vehicle Speed ControlNov 2013 · ODI 10553337Details +

THE CRUISE CONTROL IS INOPERATIVE. THE CRUISE CONTROL LIGHT WILL COME ON, BUT YOU CANNOT "SET" THE CRUISE CONTROL. I HAVE READ ONLINE ABOUT SEVERAL OTHER KIA MAKES AND MODELS HAVING THIS SAME ISSUE. AS FAR AS I CAN RESEARCH, THERE IS NOT A FUSE FOR THE CRUISE CONTROL. *TR

Reported
Nov 2013
Incident date
Jul 2013
Mileage
Not provided
Outcome flags
None reported
Open ODI 10553337 at NHTSA →

This page shows the latest 50 reports to keep it usable. The count above includes every complaint NHTSA has returned for this model year.

Recalls(1)

Open a recall to read what NHTSA says is wrong, what can happen, and how it gets fixed. Check the VIN and remedy eligibility with a dealer; federal no-charge requirements have an age limit, though a manufacturer may offer more coverage.

Exterior LightingJan 2013 · 13V114000Details +

Kia Motors Corporation (Kia) is recalling certain model year 2007-2010 Rondo, model year 2007-2011 Sedona, Sorento and Sportage, model year 2010-2011 Soul, model year 2008-2011 Optima, model year 2010 Forte, model year 2007-2009 Amanti, and model year 2009 Borrego vehicles. Originally, in April 2013, Kia recalled 623,658 model year 2007-2010 Rondo and Sportage, model year 2007-2011 Sorento, model year 2007 Sedona, model year 2010-2011 Soul, and model year 2011 Optima vehicles. In September 2013, Kia informed the agency that it was adding an additional 356,719 vehicles to this campaign. The total number of vehicles being recalled is now 980,377. In the affected vehicles, the stop lamp switch may malfunction. A malfunctioning stop lamp switch may cause the brake lights to not illuminate when the brake pedal is depressed or may cause an inability to deactivate the cruise control by depressing the brake pedal. Additionally, a malfunctioning stop lamp switch may also result in intermittent operation of the push-button start feature, affect the operation of the brake-transmission shift interlock feature preventing the shifter from being moved out of the PARK position and cause the Electronic Stability Control (ESC) malfunction light to illuminate.

Risk: Failure to illuminate the stop lamps during braking or inability to disengage the cruise control could increase the risk of a crash. Additionally, when the ignition is in the 'ON' position, the transmission shifter may be able to be moved out of PARK without first applying the brake. This may lead to unintentional movement of the car which may increase the risk of a crash.

Remedy: Kia will send an interim notification to owners in May 2013. When parts are available, owners will receive a second notification and dealers will replace the stop lamp switch, free of charge. Owners may contact Kia at 1-800-333-4542. Kia's recall campaign number is SC098.

Open full NHTSA recall record →

A campaign can apply to this model year without being incomplete on a specific vehicle. Check the VIN with NHTSA or a dealer to confirm whether a particular car needs repair.

Investigations

2 NHTSA investigations on record

Investigations are agency reviews, not findings that a vehicle is defective.

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 complaints were provided which alleged that the oil drain pans lack sufficient structural integrity and are susceptible to cracking. The petition itself can be reviewed at NHTSA.gov under ODI number 11481745. On September 12, 2022, the Office of Defects Investigation (ODI) opened Defect Petition (DP22-003) to evaluate the Petitioners’ request. The Petitioners have provided additional complaints within four supplemental letters dated January 31, 2023, March 21, 2023, May 23, 2023, and August 4, 2023. ODI’s evaluation included the review and analysis of the complaints and supporting information submitted by the Petitioners, as well as additional complaints submitted directly to NHTSA which referenced either the oil drain plug or a crack in the oil pan. After reviewing the available data, ODI has not identified evidence that would support opening a defect investigation into the oil drain pan assemblies of the subject vehicles. Based on a review of the available information, a loss of motive power resulting from an oil drain plug back out has not occurred between the initial sale of a vehicle and the completion of its first oil change. If during an oil change service, a technician fails to remove the existing drain plug gasket before installing a new gasket, it is likely that a proper seal between the drain plug and the oil pan will not be made. An improper seal between the drain plug and oil pan could lead to the backing out on the drain plug, resulting in the sudden loss of oil while driving. Additionally, the provided examples of oil pan cracks were localized to the immediate vicinity of the oil drain plug and/or appeared to be the result of direct-contact with a tool during servicing.  There is no information to support that a vehicle-based defect exists relating to the oil pan assembly, and instead the documented incidents are related to the failure to follow the proper maintenance procedures during oil change service. In October 2023, Hyundai published a Technical Service Bulletin (TSB) that provided detailed instructions for oil change service on its gasoline powered vehicles, specifically highlighting the need to remove and replace the existing drain plug gasket prior to reinstalling the drain plug. After a thorough review of the material submitted by the petitioner, the information already in NHTSA's possession, and the potential risks to motor vehicle safety implicated by the petitioners' allegations, NHTSA does not believe that a formal investigation is warranted. Therefore, the petition is denied. A Federal Register Notice (FRN) further detailing NHTSA’s reasons for denial of the petition will be published. The reference numbers for the complaints to NHTSA cited by the petitioner can be found in the petition submission documents in the public file for DP22-003. To review those complaints and the additional complaints ODI added to its evaluation which are cited in the Closing Resume ODI Report Identification Number document, go to NHTSA.gov.

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 be reviewed at NHTSA.gov under reference (ODI) number 11439675.On November 12, 2021, ODI opened Defect Petition DP21-003 to evaluate the petitioner?s request. ODI performed trend analyses of the VOQs related to vehicle speed control issues for all the subject vehicles and found that none of the 52 Model/Model Year Hyundai/Kia vehicles demonstrated any actionable trend that warranted an investigation.Petitioners submitted 1119 VOQs and non-VOQ cases in which sudden uncommanded acceleration (SUA) or loss of motive power (LOMP) incidents were alleged.For the 1119 reports, 220 were incidents involving crashes, from which 69 subject Hyundai-Kia vehicles were inspected by Hyundai/Kia dealer technicians, Hyundai/Kia engineers, and/or third-party representatives.ODI found the inspections identified no vehicle defects related to the ETC system.Of the 220 crash-involved reports, 13 Event Data Recorder (EDR) records were downloaded successfully and 11 of those indicated driver error: (i.e.) pedal misapplication.A condition where the accelerator pedal is mistakenly applied instead of the brake pedal when the driver wants to stop the vehicle.In addition, ODI reviewed a scientific journal paper published in Forensic Science International in 2016 by Mr. Park et al ., as well as related test videos. ODI does not believe there is any evidence of uncontrollable SUA occurrences in any of the tests reviewed. NHTSA's Office of Vehicle Safety Compliance (OVSC) reviewed the allegations regarding the potential noncompliance with Federal Motor Vehicle Safety Standard No. 124.Based on the information provided, the Agency concludes there is insufficient information for us to determine if a possible non-compliance exists.Finally, both Hyundai and Kia informed ODI that all their vehicles manufactured after 2012 were equipped with an ETC management system, in which the engine speed will go to idle when the system sees signals from both the brake pedal and accelerator pedal at the same time; this is commonly known as the brake-throttle override system.After thoroughly assessing the material submitted by the petitioner, information already in NHTSA's possession, information submitted by Hyundai and Kia in response to an Information Request letter, and the potential risks to safety implicated by the petitioner's allegation, NHTSA does not believe that a formal investigation is warranted. After full consideration of appropriate factors, the petition is denied. A Federal Register Notice (FRN) further detailing NHTSA?s reasons for denial of the petition will be published.

Crash-test ratings

2010 Kia Optima 4-DR w/SAB NHTSA source

Overall
Not rated
Frontal
Not rated
Side
Not rated
Rollover
Not rated

Source: NHTSA New Car Assessment Program (NCAP).

Fuel economy by trim

TrimEngineDrivetrainCityHwyCombined
Optima2.4L 4-cylFront-Wheel Drive223225
Optima2.4L 4-cylFront-Wheel Drive223225
Optima2.7L 6-cylFront-Wheel Drive202823

EPA laboratory estimates by trim and engine. Actual mileage varies with driving, weather, load, and maintenance. EPA source.

Before you buy

Useful next checks

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Compare the year-by-year record

Open another year for its own evidence-gated decision. TireKick does not crown a best year from raw complaint totals.

2010 Kia Optima: frequently asked

What does the complaint record show for the 2010 Kia Optima?

Owners filed 75 NHTSA complaints about the 2010 Kia Optima. This is raw owner-reported complaint volume with no production or exposure normalization, so it is not a reliability score or a best/worst-year ranking.

What are the most common problems on the 2010 Kia Optima?

The most-reported problem areas are Power Train (32% of complaints) and air bags (17%).

How many recalls does the 2010 Kia Optima have?

1 recall has been issued that affect the 2010 Kia Optima, covering components such as exterior lighting. Check the VIN with NHTSA and ask a dealer to confirm remedy eligibility; federal no-charge requirements have an age limit, though manufacturers may offer more coverage.

What gas mileage does the 2010 Kia Optima get?

The EPA rates the 2010 Kia Optima between 23 and 25 mpg combined, depending on trim and drivetrain.