"How reliable is the 2020 Kia Optima?"

"Based on 182 NHTSA complaints, the 2020 Kia Optima has a median complaint mileage of 54540 miles. The most common issue is ENGINE."

"What are common problems with the 2020 Kia Optima?"

"The most frequently reported component in NHTSA complaints for the 2020 Kia Optima is ENGINE, accounting for a significant portion of the 182 total complaints filed."

2020 Kia Optima: Reliability Data

Source: NHTSA — 182 complaints

182

Total Complaints

54,540mi

Median Mileage

ENGINE

Top Issue

Crash Reports

When Do Complaints Happen?

Distribution of NHTSA complaints by vehicle mileage at time of report.

7,487 25th Percentile

54,540 Median Mileage

116,000 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

ENGINE

POWER TRAIN

UNKNOWN OR OTHER

ELECTRICAL SYSTEM

FUEL/PROPULSION SYSTEM

SERVICE BRAKES

AIR BAGS

ENGINE AND ENGINE COOLING

VEHICLE SPEED CONTROL

SEAT BELTS

Severity Assessment

Crashes

Fires

Injuries

Deaths

Sample Complaint Reports

"THERE IS A VERY LIMITED AND INADEQUATE SPACE BETWEEN THE THE BOTTOM OF THE DASHBOARD AND THE BRAKE PEDAL WHICH CAN IMPEDE A DRIVER FROM MAKING AN EMERGENCY STOP.THE SAME LACK OF SPACE BETWEEN THE DASHBOARD AND THE EMERGENCY BRAKE PEDAL.NOTHING HAPPENED IT IS POTENTIALLY DANGEROUS."

"THE FCW FORWARD COLLISION WARNING SYSTEM SEEMS TO NOT GET ACTIVATED UNDER ANY CIRCUSNSTANCES. I HAVE CHANGED THE SENSITIVITY OF THE SYSTEM TO ALL LEVELS AND IT NEVER SEEMS TO DETECT THE CAR IN FRONT OF IT. IT NEVER WARNS YOU OF AN INMINENT COLLISION. THE CAR IS ALWAYS IN MOTION WHEN I TRIED THE SYS..."

"THE FCW FORWARD COLLISION WARNING SYSTEM SEEMS TO NOT GET ACTIVATED UNDER ANY CIRCUSNSTANCES. I HAVE CHANGED THE SENSITIVITY OF THE SYSTEM TO ALL LEVELS AND IT NEVER SEEMS TO DETECT THE CAR IN FRONT OF IT. IT NEVER WARNS YOU OF AN COLLISION."

Source: NHTSA ODI Complaints Database. Names and identifying details omitted.

Data source: View this vehicle on NHTSA.gov | NHTSA ODI Complaints Database. Public domain.

Methodology: Complaint counts and mileage distributions are computed directly from consumer-reported NHTSA complaints. This data represents reported issues, not failure rates — vehicles without complaints are not represented. Full methodology.

Data through: 2026-03-28