"How reliable is the 2003 Kia Optima?"

"Based on 188 NHTSA complaints, the 2003 Kia Optima has a median complaint mileage of 84200 miles. The most common issue is LATCHES/LOCKS/LINKAGES."

"What are common problems with the 2003 Kia Optima?"

"The most frequently reported component in NHTSA complaints for the 2003 Kia Optima is LATCHES/LOCKS/LINKAGES, accounting for a significant portion of the 188 total complaints filed."

2003 Kia Optima: Reliability Data

Source: NHTSA — 188 complaints

188

Total Complaints

84,200mi

Median Mileage

LATCHES/LOCKS/LINKAGES

Top Issue

Crash Reports

When Do Complaints Happen?

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

60,000 25th Percentile

84,200 Median Mileage

109,000 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

LATCHES/LOCKS/LINKAGES

ELECTRICAL SYSTEM

STRUCTURE:BODY

AIR BAGS

STRUCTURE:BODY:DOOR

SUSPENSION

UNKNOWN OR OTHER

AIR BAGS:FRONTAL

LATCHES/LOCKS/LINKAGES:DOORS:LATCH

FUEL SYSTEM, GASOLINE

Severity Assessment

Crashes

Fires

Injuries

Deaths

Sample Complaint Reports

"THE ACCELERATOR PEDAL STICKS AND THE VEHICLE RANDOMLY STARTS. *JG PH"

"THE AIR BAG SENSOR WAS DEFECTIVE.*AK *JB"

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