FaultScore

KIA Sorento Hybrid vs Buick Riviera

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 Sorento Hybrid Buick Riviera
Complaints on file 179 439
Model years covered 2021–2025 1969–1999
Worst model year 2025 1995
Best model year 2021 1996
Crashes reported 2 30
Fires reported 1 23
Injuries reported 2 18
Deaths reported 0 5
Most complained-about part Engine & Cooling Engine & Cooling
Share of complaints involving harm 2.8% 17.3%

KIA Sorento 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 48 26.8%
Transmission & Drivetrain 24 13.4%
Other & Unspecified 18 10.1%
Acceleration & Cruise Control 6 3.4%
Brakes 5 2.8%
Windows, Mirrors & Wipers 5 2.8%

Buick Riviera 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 66 15.0%
Brakes 60 13.7%
Steering 42 9.6%
Seat Belts 38 8.7%
Airbags 22 5.0%