FaultScore

KIA Carnival vs Buick Lucerne

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 KIA Carnival Buick Lucerne
Complaints on file 538 1,332
Model years covered 2022–2026 2006–2011
Worst model year 2022 2006
Best model year 2026 2010
Crashes reported 14 119
Fires reported 0 79
Injuries reported 65 77
Deaths reported 0 3
Most complained-about part Electrical System Electrical System
Share of complaints involving harm 14.7% 20.9%

KIA Carnival by year

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

What breaks

Electrical System 132 24.5%
Body & Structure 55 10.2%
Transmission & Drivetrain 19 3.5%

Buick Lucerne by year

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

What breaks

Electrical System 405 30.4%
Fuel & Propulsion 137 10.3%
Engine & Cooling 106 8.0%
Body & Structure 103 7.7%
Steering 84 6.3%
Airbags 79 5.9%
Brakes 56 4.2%