Kia Optima problems
135 owner complaints with NHTSA, no active recalls. Here's where owners say it breaks.
Solid reliability overall. Common issues are concentrated in a few systems.
Buyable on the data — keep up the usual maintenance and inspect normally.
- No systemic severe-failure pattern in the complaint record
- Reliability score 7.6/10 — above the segment average
Our read of the federal NHTSA complaint and recall record for this exact year and model — not a substitute for a pre-purchase inspection. How we score.
Top trouble spots 5 categories with 3+ complaints
What owners are saying recent NHTSA-filed complaints · verbatim
I was driving on the high way and the car loose power completely have to do change oil every two weeks and can’t find a solution
2020 Kia Optima with 39,000 miles. Check engine light came on for knock sensor and put into limp mode. Before the check engine light came on I've been noticing a faint noise during acceleration from the engine. Waiting to hear back on the overall problem.
Took to Kia for engine burning excessive oil. They determined the cylinder wall was scorched due to piston ring. The warranty people say it’s normal wear and tear and won’t honor the warranty. It’s still sitting in their engine bay because they want me to pay for the…
On Thursday, I was leaving to drive my son 5 miles up the road and my check engine light started flashing with no warning. My car slowed down and started jerking. I took it to auto zone (on limp mode) to receive a code and it came back with p1326. My car only has 64,216 miles…
Estimate your repair exposure
Drag to your current mileage. Numbers are derived from this vehicle's complaint history.
Common questions
Is the 2020 Kia Optima reliable?
Mostly yes. With a reliability score of 7.6 out of 10 based on 135 owner complaints filed with NHTSA, the 2020 Kia Optima is generally a sound vehicle. The areas to watch are listed in the top problem section above — most are budget items, not deal-breakers.
Should you avoid the 2020 Kia Optima?
On the NHTSA data, the 2020 Kia Optima does not need avoiding. Buyable on the data — keep up the usual maintenance and inspect normally. The record behind that call: No systemic severe-failure pattern in the complaint record; Reliability score 7.6/10 — above the segment average. This is our read of the federal complaint and recall data — not a substitute for a pre-purchase inspection.
What's the most common problem on the 2020 Kia Optima?
Based on NHTSA records, the most-reported issue is engine, with 65 complaints filed. Typical failure occurs around 98,334 miles. Average repair cost runs about $3,100 at an independent shop.
What's the most expensive thing that goes wrong?
The engine is one of the costlier repair items. Average repair cost runs about $3,100 at an independent shop. Typical failure occurs around 98,334 miles. Catching early warning signs can sometimes extend life by 20–30,000 miles.
How do I check if my Kia Optima has open recalls?
Paste your VIN into the decoder at the top of this page. We pull live from NHTSA, so you'll see exactly which campaigns apply to your vehicle and whether the dealer has logged the fix. Recall repairs are always free regardless of mileage or warranty status.
Is an extended warranty worth it on a 2020 Kia Optima?
Math is straightforward: a quality service contract runs $1,800–3,500 over 3 years. With 135 complaints on file and the costliest repair averaging $3,100, one major failure more than pays for it. The catch is reading the contract — many providers exclude wear items and require pre-authorization, so cheaper plans are not always better value.