69 problems have been reported for the 2006 GMC Sierra. The following chart shows the 16 most common problems for 2006 GMC Sierra. The number one most common problem is related to the vehicle's service brakes, hydraulic with 29 problems. The second most common problem is related to the vehicle's electrical system (7 problems).
| Problem Category | Number of Problems |
|---|---|
| Service Brakes | |
| Electrical System | |
| Suspension | |
| Steering | |
| Power Train | |
| Visibility | |
| Air Bag | |
| Tire | |
| Gasoline Fuel System | |
| Equipment | |
| Latches/locks/linkage | |
| Seats | |
| Engine And Engine Cooling | |
| Exterior Lighting | |
| Seat Belt | |
| Other Fuel System |
The following chart shows the number of problems reported during each of the service years since the debut of the 2006 GMC Sierra in 2006.
| Service Year | Number of Problems |
|---|---|
| 2022 | |
| 2021 | |
| 2020 | |
| 2019 | |
| 2018 | |
| 2017 | |
| 2016 | |
| 2015 | |
| 2014 | |
| 2013 | |
| 2012 | |
| 2011 | |
| 2010 | |
| 2009 | |
| 2008 | |
| 2007 | |
| 2006 |
When making the decision between buying a new or used GMC Sierra, the following table can be used to compare the 2006 GMC Sierra with the GMC Sierra from other model years. Note that the number of problems reported for the 2006 Sierra is 69 while the average number of problems reported for the 25 model years of the GMC Sierra is 178.