Kia Optima common problems
Owners of 2015–2020 Kia Optima vehicles have filed 2,570 complaints with NHTSA. The most-reported system is engine & cooling (89% of categorised reports). Below is every reported problem area, ranked by real complaint volume, with recall and crash context — useful if you're researching this model before buying used.
- 2,570
- Owner complaints
- 15
- Recall campaigns
- 97
- Crash-related reports
- 80
- Injury reports
Most reported problem areas
By share of categorised NHTSA complaints across all 6 model years. Each links to what that system covers and its recall history.
- Engine & cooling1,582
- Body & structure101
- Steering64
- Airbags28
How to read this before buying
Complaint volume is not the same as failure rate. A model that sold in large numbers, or one that has been on sale for many years, accumulates more complaints without necessarily being less reliable. Use these figures to learn which systems to inspect, not to rank one model against another.
The single most useful next step is to check the specific vehicle's recalls by VIN — a recall repair is free at any franchised dealer, but only if it has actually been done.
Recent safety events
Full timeline- Investigation closed2015 optima
NHTSA closed investigation EA19001
Electrical overstress
- Investigation closed2016 optima
NHTSA closed investigation EA19001
Electrical overstress
- Investigation closed2017 optima
NHTSA closed investigation EA19001
Electrical overstress
- Investigation closed2018 optima
NHTSA closed investigation EA19001
Electrical overstress
- Investigation closed2019 optima
NHTSA closed investigation EA19001
Electrical overstress
- Investigation closed2017 optima
NHTSA closed investigation EA21003
Engine Fires
Frequently asked
- What are the most common Kia Optima problems?
- Across 2,570 owner complaints filed with NHTSA for 2015–2020 Kia Optima vehicles, the most reported systems are engine & cooling (89%), body & structure (6%), steering (4%).
- Which Kia Optima model year has the most complaints?
- In our index, the 2015 Kia Optima has the most owner complaints, with 1,001 filed.
- Are Kia Optima problems dangerous?
- Of the 2,570 complaints on record, 97 mention a crash, 118 mention a fire and 80 mention an injury, and 2 involve a death. Complaint counts are not a failure rate — check the specific vehicle's open recalls by VIN.
Problems by model year
The 2015 accounts for the most complaints (1,001). Open any year for its full complaint and recall report.
Where this comes from
Every figure is aggregated from consumer complaints filed directly with the National Highway Traffic Safety Administration — not forums, reviews or estimates. Component grouping uses our published taxonomy.