GMC Sierra Denali vs Lexus IS
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 Denali | Lexus IS |
|---|---|---|
| Complaints on file | 332 | 808 |
| Model years covered | 2002–2020 | 1999–2025 |
| Worst model year | 2019 | 2006 |
| Best model year | 2013 | 2015 |
| Crashes reported | 11 | 68 |
| Fires reported | 0 | 9 |
| Injuries reported | 15 | 38 |
| Deaths reported | 0 | 1 |
| Most complained-about part | Brakes | Body & Structure |
| Share of complaints involving harm | 7.8% | 14.4% |
GMC Sierra Denali by year
What breaks
Brakes
57
17.2%
Other & Unspecified
54
16.3%
Body & Structure
34
10.2%
Transmission & Drivetrain
28
8.4%
Engine & Cooling
27
8.1%
Steering
27
8.1%
Airbags
26
7.8%
Electrical System
17
5.1%
Lexus IS by year
What breaks
Body & Structure
148
18.3%
Airbags
114
14.1%
Other & Unspecified
114
14.1%
Windows, Mirrors & Wipers
95
11.8%
Engine & Cooling
78
9.7%
Electrical System
45
5.6%
Fuel & Propulsion
37
4.6%
Steering
34
4.2%