36 problems have been reported for the 2009 GMC Sierra 2500. The following chart shows the 13 most common problems for 2009 GMC Sierra 2500. The number one most common problem is related to the vehicle's electrical system with 7 problems. The second most common problem is related to the vehicle's air bags (5 problems).
| Problem Category | Number of Problems |
|---|---|
| Electrical System | |
| Air Bag | |
| Service Brakes | |
| Engine And Engine Cooling | |
| Structure | |
| Other Fuel System | |
| Electronic Stability Control | |
| Equipment | |
| Tire | |
| Seat Belt | |
| Steering | |
| Unknown Or Other | |
| Latches/locks/linkage |
In our research we use the PPMY index to compare the reliability of vehicles. The PPMY index of a certain model is defined as the problems reported per thousand vehicles per Year. The total sales of the 2009 GMC Sierra 2500 in the United States are 15,043 units [1]. If the total number of problems reported by GMC Sierra 2500 owners in the last 16 years is 36, and the age of the vehicle is 16, the PPMY index can then be calculated as
PPMY Index = 36 / 15,043 / 16 * 1000 = 0.15.
For more information, refer to this page: A study of reliability comparison across GMC Sierra 2500 model year vehicles.
The following chart shows the number of problems reported during each of the service years since the debut of the 2009 GMC Sierra 2500 in 2009.
| Service Year | Number of Problems |
|---|---|
| 2025 | |
| 2024 | |
| 2023 | |
| 2022 | |
| 2021 | |
| 2020 | |
| 2019 | |
| 2018 | |
| 2017 | |
| 2016 | |
| 2015 | |
| 2014 | |
| 2013 | |
| 2012 | |
| 2011 | |
| 2010 | |
| 2009 |
When making the decision between buying a new or used GMC Sierra 2500, the following table can be used to compare the 2009 GMC Sierra 2500 with the GMC Sierra 2500 from other model years. Note that the number of problems reported for the 2009 Sierra 2500 is 36 while the average number of problems reported for the 29 model years of the GMC Sierra 2500 is 62.