2018 Kia Sedona: Reliability Data

Source: NHTSA — 60 complaints
60
Total Complaints
14,375mi
Median Mileage
ENGINE
Top Issue
3
Crash Reports

When Do Complaints Happen?

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

8,997 25th Percentile
14,375 Median Mileage
54,250 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

ENGINE
19
ELECTRICAL SYSTEM
10
AIR BAGS
6
UNKNOWN OR OTHER
3
STRUCTURE:BODY
3
EXTERIOR LIGHTING
2
POWER TRAIN
2
SEATS
2
FUEL/PROPULSION SYSTEM
2
WHEELS
2

Severity Assessment

3
Crashes
8
Fires
3
Injuries
0
Deaths

Sample Complaint Reports

"VEHICLE MPG IS NOT ACCURATE. STATES 18-24 MPG. WE ARE GETTING 17 MPG ON AVERAGE WITH SOME HIGHWAY DRIVING. FILLING UP TANK EVERY 4-5 DAYS ABOUT 15 GALLON OF FUEL EACH FILL UP. VAN IS NEW AND HAS 2500 MILES. FEEL THAT MILEAGE CLAIM IS NOT ACCURATE. 3.3L ENGINE. 2018 KIA SEDONA EX."
"IF YOU REMOVE PRESSURE FROM THE ACCELERATOR WHEN THE TRANSMISSION WANTS TO SHIFT SOMETIMES THERE IS A LOSS OF ACCELERATION AND THE VEHICLE WILL START SLOWING DOWN WITH THE ENGINE RUNNING WITH NO ENGINE WARNING LIGHT COMING ON. THIS INTERMITTENT PROBLEM HAS HAPPENED WHEN THE TRANSMISSION SHIFTS AT AP..."
"IF YOU REMOVE PRESSURE FROM THE ACCELERATOR WHEN THE TRANSMISSION WANTS TO SHIFT SOMETIMES THERE IS A LOSS OF ACCELERATION AND THE VEHICLE WILL START SLOWING DOWN WITH THE ENGINE RUNNING WITH NO ENGINE WARNING LIGHT COMING ON. THIS INTERMITTENT PROBLEM HAS HAPPENED WHEN THE TRANSMISSION SHIFTS AT AP..."

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