GMC W Series - Problems, Statistics, and Analysis

GMC W Series owners have reported a total of 22 problems for their cars built in the 9 model years listed in the chart below. The chart shows the number of problems reported across all service years for each given model year of the GMC W Series. The 2007 GMC W Series cars have the most problems reported (6 problems).

Table 1. Total number of problems by model year for GMC W Series

Model Year	Number of Problems
2008 W Series	1
2007 W Series	6
2006 W Series	4
2004 W Series	4
2003 W Series	1
2002 W Series	1
2001 W Series	2
2000 W Series	2
1999 W Series	1

🔍 Common problems of GMC W Series

The following chart shows the 11 most common problems for GMC W Series cars. The number one most common problem is related to the vehicle's service brakes, hydraulic (6 problems). The second most common problem is related to the vehicle's engine and engine cooling (3 problems).

Table 2. Common problems of GMC W Series

Problem Category	Number of Problems
Service Brakes	6
Engine And Engine Cooling	3
Other Fuel System	3
Steering	2
Diesel Fuel System	2
Wheel	1
Tire	1
Electrical System	1
	1
Suspension	1
Unknown Or Other	1

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☘ W Series Service Bulletins

⚑ W Series Safety Recalls

☤ W Series Defect Investigations

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