57 problems have been reported for the 2003 GMC Sonoma. The following chart shows the 18 most common problems for 2003 GMC Sonoma. The number one most common problem is related to the vehicle's structure with 7 problems. The second most common problem is related to the vehicle's power train (7 problems).
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 2003 GMC Sonoma in the United States are 41,165 units [1]. If the total number of problems reported by GMC Sonoma owners in the last 19 years is 57, and the age of the vehicle is 19, the PPMY index can then be calculated as
PPMY Index = 57 / 41,165 / 19 * 1000 = 0.07.
For more information, refer to this page: A study of reliability comparison across GMC Sonoma model year vehicles.
The following chart shows the number of problems reported during each of the service years since the debut of the 2003 GMC Sonoma in 2003.
| Service Year | Number of Problems |
|---|---|
| 2022 | |
| 2021 | |
| 2020 | |
| 2019 | |
| 2018 | |
| 2017 | |
| 2016 | |
| 2015 | |
| 2014 | |
| 2013 | |
| 2012 | |
| 2011 | |
| 2010 | |
| 2009 | |
| 2008 | |
| 2007 | |
| 2006 | |
| 2005 | |
| 2004 | |
| 2003 |
When making the decision between buying a new or used GMC Sonoma, the following table can be used to compare the 2003 GMC Sonoma with the GMC Sonoma from other model years. Note that the number of problems reported for the 2003 Sonoma is 57 while the average number of problems reported for the 10 model years of the GMC Sonoma is 104.
| Model Year | Number of Problems |
|---|---|
| 2005 Sonoma | |
| 2004 Sonoma | |
| 2003 Sonoma | |
| 2002 Sonoma | |
| 2001 Sonoma | |
| 2000 Sonoma | |
| 1999 Sonoma | |
| 1998 Sonoma | |
| 1997 Sonoma | |
| 1996 Sonoma |