FaultScore

GMC Sierra 1500 HD vs KIA Niro EV

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 GMC Sierra 1500 HD KIA Niro EV
Complaints on file 58 143
Model years covered 2001–2005 2019–2025
Worst model year 2003 2022
Best model year 2002 2020
Crashes reported 1 14
Fires reported 2 0
Injuries reported 0 6
Deaths reported 0 0
Most complained-about part Brakes Electrical System
Share of complaints involving harm 5.2% 14%

GMC Sierra 1500 HD by year

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

What breaks

Brakes 27 46.6%
Electrical System 7 12.1%
Engine & Cooling 6 10.3%
Fuel & Propulsion 5 8.6%
Transmission & Drivetrain 3 5.2%
Windows, Mirrors & Wipers 3 5.2%
Steering 2 3.4%
Body & Structure 2 3.4%

KIA Niro EV 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 19 13.3%
Brakes 11 7.7%
Driver Assist & Collision Avoidance 11 7.7%
Acceleration & Cruise Control 8 5.6%
Fuel & Propulsion 8 5.6%
Engine & Cooling 7 4.9%