Reliability, what owners report, and what it costs to keep.
AVOIR's read: the numbers are mixed and the complaint record is worth reading before you commit.
Owners have filed 754 complaints with NHTSA about the 2016 Kia Optima, and it carries 5 recalls. These are owner allegations rather than confirmed defects, but the pattern of what people complain about is the most useful signal a used buyer has.
| Area | Complaints | Share |
|---|---|---|
| Engine | 270 | 36% |
| Unknown or other | 70 | 9% |
| Exterior lighting | 29 | 4% |
| Power train | 26 | 3% |
| Structure | 24 | 3% |
| Electrical system | 21 | 3% |
| Power train | 17 | 2% |
| Engine and engine cooling | 17 | 2% |
| Engine | 17 | 2% |
| Visibility | 13 | 2% |
Verbatim from NHTSA complaint records, trimmed for length.
Vehicle was purchased in 2023. AC blower failure occurred for the first time in June 2024 and was repaired by PepBoys. On 4/2/2025 the ve3hicle had an active recall event when the engine seized on the highway because of
NHTSA complaint: Power train
While driving at highway speeds on the freeway in San Diego, the engine of my 2016 Kia Optima catastrophically seized without warning. I instantly lost all power steering, brake assist, and electrical power, creating an
NHTSA complaint: Electrical system
Blower motor is drawing excessive electricity, which in turn burns the fuse and junction pin, which in turn can start a fire in the car. Kia of Irvine suggested redoing all electrical wiring in the car, but that will no
NHTSA complaint: Electrical system
Window falls into the door. The rear two windows have been repaired 3 times. They are currently both broken again along with the front drivers side. I currently have three windows being help up by tape. They are taped t
NHTSA complaint: Visibility/wiper
The engine assembly completely seized and the vehicle is currently stored at an independent repair shop . While traveling at high speed on Interstate 4 on July 24, 2026, the vehicle suffered a sudden, catastrophic loss o
NHTSA complaint: Power train
engine failure, i was driving home from work and i went to accelerate from 0 to 20 miles and the car hesitated and didn't want to move. I took the car to the dealer three days later and it was confirmed that i needed a n
NHTSA complaint: Engine
NHTSA Bulletin TSB BOD300 My KIA 2016 Optima Turbo has all four windows impacted by the defective gear. I've opened a case with KIA and it's case number 25563361. None of my windows roll up or down. This presents severa
NHTSA complaint: Unknown or other
Code was on and off for a cylinder 2 misfire was off at this point (intermittent misfire) ecl was off car stalled out at 3rpms while driving, tiny puff of smoke once came from between the air intake and the engine, and a
NHTSA complaint: Unknown or other
NHTSA lists 5 recall campaigns for the 2016 Kia Optima. Recalls are free to have fixed at a franchised dealer regardless of who owns the car now, but only if they were never done, so check the VIN of the specific car rather than trusting the model.
Kia Motors America (Kia) is recalling certain 2011-2017 Optima, 2012-2017 Sorento and 2011-2018 Sportage vehicles that previously received an engine replacement under recall number 17V-224, warranty, or the Knock Sensor Detection System (KSDS) Product Improvement Campaign. The high pressure fuel pi
Risk: A fuel leak in the presence of an ignition source can increase the risk of a fire.
Fix: Kia has notified owners, and dealers will inspect and replace the fuel pipe, as necessary, free of charge. The recall began January 17, 2019. Owners may contact Kia customer service at 1-800-333-454
Kia Motors America (Kia) has recalled one 2016 Optima vehicle. In this vehicle, the end seal for the driver's frontal air bag inflator may not have been properly installed, possibly resulting in reduced inflation of the frontal air bag in the event of a crash.
Risk: In the event of a crash, an air bag that does not inflate fully increases the risk of injury.
Fix: The affected vehicle was remedied on January 10, 2017. Owners may contact Kia customer service at 1-800-333-4542. Kia's number for this recall is SC143.
Kia Motors America (Kia) is recalling certain model year 2016 Kia Optima vehicles manufactured November 13, 2015, to April 23, 2016 and equipped with a 2.4l engine. The right front axle driveshaft may crack and fail.
Risk: If the driveshaft cracks and separates from the vehicle, it will not be able to move forward. Additionally, if the parking brake is not applied upon exiting the vehicle, the vehicle may roll. Either
Fix: Kia will notify owners, and dealers will replace the front axle driveshaft, free of charge. The recall began November 2016. Owners may contact Kia customer service at 1-800-333-4542. Kia's number f
Kia Motors America (Kia) is recalling certain model year 2016 Kia Optima vehicles manufactured November 10, 2015, to February 12, 2016. In these vehicles, a chemical enhancer required for the for the second stage deployment of the driver's frontal air bag was not loaded, resulting in the second sta
Risk: If the second stage air bag does not deploy it increases the risk of injury or death.
Fix: Kia will notify owners, and dealers will replace the driver's frontal air bag module, free of charge. The recall began on May 6, 2016. Owners may contact Kia customer service at 1-800-333-4542. Kia
| Reliability raw | 56 | average |
|---|---|---|
| Longevity est. | 64 | average |
| Maintenance | 83 | excellent |
| Depreciation | 82 | excellent |
| Performance | 47 | below average |
| Efficiency | 54 | average |
| Safety | 100 | excellent |
Percentile ranks against other midsize & large cars in the catalog.
What stands behind each score for this car:
Owners have filed 754 complaints with NHTSA for this model-year, and engine is the most reported area with 270 of them (36%). There are 5 recalls on record. Check any specific car against its VIN before buying.
AVOIR scores its reliability 56/100 (average) from NHTSA recall campaigns and complaint density. That figure is a raw complaint count, not yet adjusted for sales volume, so a high-volume model scores worse than it deserves.
AVOIR scores its longevity 64/100, but that figure is an estimate built from the powertrain and the brand's record, not a measurement. A 2016 car has no 200,000-mile population to observe yet, so treat it as a prior rather than evidence.
AVOIR's read: be careful, because the numbers are mixed and the complaint record is worth reading before you commit. Its overall ownership score is 69/100. Condition, mileage and service history still matter more than any score, so get a pre-purchase inspection on the specific car.
Sources: NHTSA recalls and complaints, EPA fuel economy, IIHS awards, and live market listings. A score describes a model-year, not the individual car in front of you. Get a pre-purchase inspection.