The Lemon Index2025 Kia Optima.
The 2025 Kia Optima is so far worse than average by owner complaints: 53 complaints in its first 3 years and a Lemon Index of 120, where 100 is the average car. Owners complain most about tires, and it has 2 recalls. The best Kia Optima year is 2017.
Early read
Before you buy. What matters most for this car.
How serious. Out of 53 owner complaints, owners reported:
Every Kia Optima year. 2025 is highlighted. Lower is better.
What owners complain about most. From owner complaints to the government.
Share of this year's owner complaints filed with NHTSA, not the share of cars that break. One complaint can name more than one area.
When owners reported problems. From owner complaints to the government.
Most owners who filed a complaint with NHTSA had 2K to 15K miles on the car (5 complaints listed the miles). This shows when people who had a problem reported it, not the odds that your car will have it.
Recalls 2
- body structure 2025
The left and right rear window trim pieces may loosen and detach.
- lights 2025
A software error in the Power-net Domain Controller (PDC) may cause the parking lights to flicker.
Recall repairs are free at any dealer. A recall only matters if it's still open on that exact car, so check its VIN.
Problems Kia told dealers about
Kia sent dealers 27 repair notes for this car. The ones about its biggest problems:
- Technical service bulletin: service action: 8-speed transmission gear shift logic improvement…
- Technical service bulletin: service action: battery wiring harness covering inspection /…
- Technical service bulletin: service action: sunroof operation software logic improvement…
Ask a seller or mechanic if these were done. Some are free under warranty or a special program.
Safety
Crash test details
| Version | Overall | Front | Side | Rollover |
|---|---|---|---|---|
| Kia K5 4 DR AWD | ★★★★★ | ★★★★☆ | ★★★★★ | ★★★★☆ |
| Kia K5 4 DR FWD | ★★★★★ | ★★★★☆ | ★★★★★ | ★★★★☆ |
In owners' words
While cruising at approximately 40 mph on a surface street, the car lost all power, completely shutting down. After rolling for two seconds it turned back on.
2025 Kia Optima owner · NHTSA complaint 11631165
More owner reports
The turning lights keep flickering and the back trim became lose.
NHTSA complaint 11748579
The stock OE Pirelli PZero 235/45 R18 tire had a sidewall bubble identified after 7200 miles. The tire was originally the front passenger tire, moved to the rear passenger after tire rotation.
NHTSA complaint 11721854
Quick answers
Is the 2025 Kia Optima reliable?
It's too early to be sure. So far it has drawn 1.2× the average car's complaints per car sold, against other 2025 cars after the same time on the road (early Lemon Index 120; 100 is average). The best Kia Optima year by this measure is 2017.
What are the most common 2025 Kia Optima problems?
In owner complaints to the government, the parts named most are tires (28%), electrical (21%) and transmission & drivetrain (11%). That is the share of complaints, not the share of cars that break.
How many recalls does the 2025 Kia Optima have?
2 safety recalls (latest: body structure). Recall repairs are free at any dealer; check a specific car's VIN at nhtsa.gov/recalls.
Is the 2025 Kia Optima safe?
NHTSA gave it 5 out of 5 stars overall in its best tested version. Ratings differ by body style, and the full table is on the advanced page.
Does the 2025 Kia Optima have transmission problems?
Transmission and drivetrain issues make up 11% of its owner complaints.
What Kia Optima year is better than the 2025?
By owner complaints per car sold, the best recent years are 2017, 2019 and 2020.
Lemon Index = safety complaints filed with the U.S. government (NHTSA) in a car's first 3 years, per car sold, against the average car of the same model year. 100 is average; lower is better. A complaint is an owner's report, not a confirmed defect. How it works