GMC Sierra 1500 HD vs Cadillac XT6
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 | Cadillac XT6 |
|---|---|---|
| Complaints on file | 58 | 143 |
| Model years covered | 2001–2005 | 2020–2025 |
| Worst model year | 2003 | 2020 |
| Best model year | 2002 | 2025 |
| Crashes reported | 1 | 2 |
| Fires reported | 2 | 0 |
| Injuries reported | 0 | 1 |
| Deaths reported | 0 | 0 |
| Most complained-about part | Brakes | Driver Assist & Collision Avoidance |
| Share of complaints involving harm | 5.2% | 2.1% |
GMC Sierra 1500 HD by year
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%
Cadillac XT6 by year
What breaks
Driver Assist & Collision Avoidance
31
21.7%
Electrical System
24
16.8%
Transmission & Drivetrain
21
14.7%
Other & Unspecified
17
11.9%
Engine & Cooling
14
9.8%
Fuel & Propulsion
11
7.7%
Brakes
7
4.9%
Windows, Mirrors & Wipers
5
3.5%