FaultScore

Isuzu Ascender vs GMC Yukon Denali XL

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 Isuzu Ascender GMC Yukon Denali XL
Complaints on file 281 684
Model years covered 2003–2007 2003–2018
Worst model year 2006 2007
Best model year 2007 2013
Crashes reported 9 22
Fires reported 8 7
Injuries reported 7 16
Deaths reported 0 0
Most complained-about part Electrical System Other & Unspecified
Share of complaints involving harm 8.5% 6.6%

Isuzu Ascender by year

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

What breaks

Lights 23 8.2%
Engine & Cooling 15 5.3%
Windows, Mirrors & Wipers 13 4.6%
Transmission & Drivetrain 12 4.3%
Airbags 12 4.3%
Brakes 7 2.5%

GMC Yukon Denali XL by year

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

What breaks

Airbags 100 14.6%
Lights 60 8.8%
Brakes 56 8.2%