8 problems have been reported for the 1999 GMC C3500. The following chart shows the 5 most common problems for 1999 GMC C3500. The number one most common problem is related to the vehicle's electrical system with 2 problems. The second most common problem is related to the vehicle's service brakes, hydraulic (2 problems).
| Problem Category | Number of Problems |
|---|---|
| Electrical System | |
| Service Brakes | |
| Engine And Engine Cooling | |
| Structure | |
| Seats |
The following chart shows the number of problems reported during each of the service years since the debut of the 1999 GMC C3500 in 1999.
| 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 | |
| 2002 | |
| 2001 | |
| 2000 | |
| 1999 |
When making the decision between buying a new or used GMC C3500, the following table can be used to compare the 1999 GMC C3500 with the GMC C3500 from other model years. Note that the number of problems reported for the 1999 C3500 is 8 while the average number of problems reported for the 7 model years of the GMC C3500 is 4.
| Model Year | Number of Problems |
|---|---|
| 2002 C3500 | |
| 2001 C3500 | |
| 2000 C3500 | |
| 1999 C3500 | |
| 1998 C3500 | |
| 1997 C3500 | |
| 1996 C3500 |