The worst 2003 GMC G Series problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
Recalls 1
Structure
- What is wrong
- Certain pickup truck, van, and mini van conversions equipped with southern comfort built running boards that contain certain courtesy lights manufactured by american technology components, inc. These units contain a courtesy light or lights that might overheat when the wire harness is exposed to excessive moisture and road salt.
- Risk
- This overheating condition can cause the running board to melt or cause a fire.
- Remedy
- Dealers will replace the wiring harness on these running boards. Owner notification began march 7, 2003. Owners who take their vehicles to an authorized dealer on an agreed upon service date and do not receive the free remedy within a reasonable time should contact southern comfort at 1‑800‑745‑6096.
Recall number 03V094000 · Recall details
Technical service bulletins for the 2003 GMC G Series 338
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- This PI communicates the requirement to provide a pico file to receive diagnostic assistance from TAC.
- Unknown or other
- Vehicle Wide Programming (VWP) is a new process to update software on GM Vehicles
- GM is receiving damaged (cracked or broken) transmission cores returned to the reman facilities
- This service bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves...
- This bulletin provides information for use on a Product Assistance Claim (PAC), which is formerly known as...
- This service bulletin provides information for dealers/technicians on Service Programming System (SPS)...
- This Warranty Administration bulletin provides retail and wholesale service personnel with the...
- This bulletin provides information for electrical ground repairs using new General Motors replacement...
- This technical bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake...
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Questions about the 2003 GMC G Series
Is the 2003 GMC G Series reliable?
Owners have filed 0 complaints about the 2003 GMC G Series.
What is the most common problem with the 2003 GMC G Series?
There are not enough complaints to tell.
How many recalls does the 2003 GMC G Series have?
1 recall, covering structure.
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