FaultScore

Hyundai Sonata GLS vs Nissan Altima 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 Hyundai Sonata GLS Nissan Altima Hybrid
Complaints on file 67 166
Model years covered 1999–1999 2007–2011
Worst model year 2009
Best model year 2010
Crashes reported 1 14
Fires reported 0 5
Injuries reported 4 0
Deaths reported 2 0
Most complained-about part Body & Structure Electrical System
Share of complaints involving harm 10.4% 11.4%

Hyundai Sonata GLS by year

99
Complaints filed with NHTSA, by model year. Bar colour is the FaultScore grade: A B C D F ungraded

What breaks

Body & Structure 36 53.7%
Suspension 12 17.9%
Airbags 7 10.4%
Engine & Cooling 5 7.5%
Transmission & Drivetrain 3 4.5%
Steering 2 3.0%
Tires 1 1.5%
Wheels 1 1.5%

Nissan Altima Hybrid by year

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

What breaks

Steering 28 16.9%
Engine & Cooling 22 13.3%
Airbags 14 8.4%
Brakes 13 7.8%
Acceleration & Cruise Control 9 5.4%
Suspension 8 4.8%
Other & Unspecified 7 4.2%