- January 12: GM Recalls 370,000 Trucks That Could Catch on Fire
- January 6: GM Recalls Silverado and Sierra For Gas Gauge Problems
2003 GMC Sierra 1500
AC / heater Problems
Worst 2003 Sierra 1500 AC / heater Problems
Click on a problem below to read more.
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Compare GMC Sierra 1500 Model Years
Curious how the 2003 Sierra 1500 compares to other years?
Check out our GMC Sierra 1500 overview to see the most problematic years, worst problems and most recently reported complaints with the Sierra 1500.