Actual terms vary by lender. Used Bought my 03' Sierra 1500 as a first vehicle. It was an extended cab with the 5.3 litre Vortec. After 245,000 miles I have had VERY FEW ISSUES, though I am the ...

Showing the 2003 GMC Sierra 1500 Reg Cab 133.0" WB Work Truck $0 Starting MSRP Wondering which trim is right for you? Our 2003 GMC Sierra 1500 trim comparison will help you decide.

These cars are a great deal for Sierra 1500 Wideside Extended Cab shoppers. Click below to find your next car.

These cars are a great deal for Sierra 1500 SLT Wideside Extended Cab shoppers. Click below to find your next car.

The GMC Sierra Denali arrived near the start of Y2K, and with it came a game-changing notion: what if hard-working capability could be opulent? This notion has since influenced many of the models ...

The package: Full-size, five-passenger, four-door, four-wheel-drive, V-8 powered, special off-road oriented light-duty pickup truck. Highlights: GMC extensively updated its Sierra 1500 pickups ...