FaultScore

Jeep Wagoneer S vs KIA Optima Hybrid

Both cars' complete complaint records, side by side.

Read the totals carefully. NHTSA publishes no sales figures, so the car that sold more collects more complaints regardless of quality. The rows worth weighing are the proportions — the share of complaints that involved harm, and which part dominates.

Measure Jeep Wagoneer S KIA Optima Hybrid
Complaints on file 163 406
Model years covered 2024–2025 2011–2020
Worst model year 2012
Best model year 2015
Crashes reported 6 31
Fires reported 0 21
Injuries reported 0 18
Deaths reported 0 0
Most complained-about part Electrical System Engine & Cooling
Share of complaints involving harm 3.7% 17.2%

Jeep Wagoneer S by year

Complaints filed with NHTSA, by model year. Bar colour is the FaultScore grade: A B C D F ungraded

What breaks

Transmission & Drivetrain 17 10.4%
Driver Assist & Collision Avoidance 17 10.4%
Brakes 16 9.8%
Engine & Cooling 14 8.6%
Acceleration & Cruise Control 11 6.7%
Fuel & Propulsion 9 5.5%
Other & Unspecified 8 4.9%

KIA Optima Hybrid by year

Complaints filed with NHTSA, by model year. Bar colour is the FaultScore grade: A B C D F ungraded

What breaks

Engine & Cooling 150 36.9%
Brakes 35 8.6%
Steering 20 4.9%
Acceleration & Cruise Control 17 4.2%
Fuel & Propulsion 15 3.7%