2020 Kia Optima problems
The 2020 Kia Optima has 137 NHTSA owner complaints and no active recalls. Here's where owners say it breaks.
The 2020 Kia Optima has 137 NHTSA owner complaints on file (U.S. federal records, as of July 2026). The most-reported system is engine at 66 complaints, typically surfacing around 98,334 miles (~$3,100 to repair). Source: NHTSA Office of Defects Investigation.
| Model year | Owner complaints | Recalls |
|---|---|---|
| 2017 Optima | 252 | 0 |
| 2018 Optima | 230 | 2 |
| 2019 Optima | 204 | 1 |
| 2020 Optima (this page) | 137 | 0 |
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.
NHTSA crash-test safety ratings 5 / 5 overall
Driver-assist features on the tested model: Electronic stability control: Standard · Forward collision warning: Standard · Lane departure warning: Standard
Source: NHTSA New Car Assessment Program — tested configuration: 2020 Kia Optima 4 DR FWD. Stars rate crash protection in NHTSA's tests, not overall reliability — see the owner-complaint data below for what actually goes wrong.
Buying a used 2020 Kia Optima? Check these first
Here's what this model is known to do — so you can inspect for it, price it in, or make the seller fix it before you sign.
What to inspect on this specific car
- engine — 66 owner reports · tends to show around 98,334 mi · ~$3,100 to fix
- powertrain — 24 owner reports · ~$2,500 to fix
- electrical — 11 owner reports · ~$850 to fix
- brakes — 7 owner reports · tends to show around 28,294 mi · ~$450 to fix
⚠ The one to take seriously: electrical is flagged severe on this model . Inspect it closely on a test drive.
Recalls to confirm are done
Run the VIN from the listing — no active recalls on this model right now, but confirm none were opened after this car was built.
Verdict for buyers: 7.6/10 model. The priciest documented failure is engine (~$3,100) — get the seller's service records for it or inspect closely. Otherwise an average-risk used buy at a fair price.
We tell you what this model is known for and what to inspect — a vehicle-history report tells you what this exact car has been through. Smart buyers get both.
See the full pre-purchase inspection checklist →Ask anything about your 2020 Kia Optima
A noise, a warning light, a repair quote, "should I buy this?" — get an answer grounded in this vehicle's actual NHTSA record, not generic advice.
Answers use this vehicle's NHTSA complaint & recall record — owner-reported and unverified, not a diagnosis. Verify anything safety-critical with a mechanic.
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 137 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 should I check before buying a used 2020 Kia Optima?
Inspect the engine first — it's the most-reported issue on this model, with 66 owner complaints filed. Typical failure occurs around 98,334 miles. Average repair cost runs about $3,100 at an independent shop. Also confirm any open recalls have been completed by running the VIN, and ask for service records covering the problem areas listed above.
Is the 2020 Kia Optima a good used car to buy?
It scores 7.6 out of 10 on our NHTSA-based read of 137 owner complaints. The main thing to watch is engine. Typical failure occurs around 98,334 miles. Priced fairly and clean on inspection, it's a reasonable used buy. Our data covers what this model is known for — pair it with a vehicle-history report on the VIN to see what that specific car has been through.
What's the most common problem on the 2020 Kia Optima?
Based on NHTSA records, the most-reported issue is engine, with 66 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 137 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.