GMC: 2003

Database: LEMON

LEMON manuals were retrieved in late 2025, so they have more up to date technical bulletins for example. However, they tend to be less detailed for older vehicles.


• Cab & Chassis Sierra
  • 2D Pickup Extra Cab, 6.0 U, 4WD, Automatic
  • 2D Pickup Extra Cab, 6.0 U, 4WD, Part Time, Automatic
  • 2D Pickup Extra Cab, 6.0 U, 4WD, Part Time, Standard
  • 2D Pickup Extra Cab, 6.0 U, RWD, Automatic
  • 2D Pickup Extra Cab, 6.0 U, RWD, Standard
  • 2D Pickup Extra Cab, 6.6 1, 4WD, Automatic
  • 2D Pickup Extra Cab, 6.6 1, 4WD, Standard
  • 2D Pickup Extra Cab, 6.6 1, RWD, Automatic
  • 2D Pickup Extra Cab, 6.6 1, RWD, Standard
  • 2D Pickup Extra Cab, 8.1 G, 4WD, Automatic
  • 2D Pickup Extra Cab, 8.1 G, 4WD, Standard
  • 2D Pickup Extra Cab, 8.1 G, RWD, Automatic
  • 2D Pickup Extra Cab, 8.1 G, RWD, Standard
  • 2D Pickup, 6.0 U, 4WD, Automatic
  • 2D Pickup, 6.0 U, 4WD, Part Time, Automatic
  • 2D Pickup, 6.0 U, 4WD, Part Time, Standard
  • 2D Pickup, 6.0 U, RWD, Automatic
  • 2D Pickup, 6.0 U, RWD, Standard
  • 2D Pickup, 6.6 1, 4WD, Automatic
  • 2D Pickup, 6.6 1, 4WD, Standard
  • 2D Pickup, 6.6 1, RWD, Automatic
  • 2D Pickup, 6.6 1, RWD, Standard
  • 2D Pickup, 8.1 G, 4WD, Automatic
  • 2D Pickup, 8.1 G, 4WD, Standard
  • 2D Pickup, 8.1 G, RWD, Automatic
  • 2D Pickup, 8.1 G, RWD, Standard
• Envoy
  • 4WD
  • RWD
• Envoy XL
  • 4.2 S, 4WD
  • 4.2 S, RWD
  • 5.3 P, 4WD
  • 5.3 P, RWD
• Jimmy
  • 2D Utility, Automatic, Automatic
  • 2D Utility, Automatic, Standard
  • 2D Utility, Part Time, Automatic
  • 2D Utility, Part Time, Standard
  • 4D Utility, 4WD, Automatic
  • 4D Utility, 4WD, Part Time
  • 4D Utility, AWD
• Safari
  • Van Cargo, AWD
  • Van Cargo, RWD
  • Van Passenger, AWD
  • Van Passenger, RWD
• Savana
  • G1500, Van Cargo, 4.3 X
  • G1500, Van Cargo, 5.3 T
  • G1500, Van Passenger, 4.3 X
  • G1500, Van Passenger, 5.3 T
  • G2500, Van Cargo Extended, 4.3 X, 4L60E/M30
  • G2500, Van Cargo Extended, 4.3 X, 4L80E/MT1
  • G2500, Van Cargo Extended, 6.0 U
  • G2500, Van Cargo, 4.3 X, 4L60E/M30
  • G2500, Van Cargo, 4.3 X, 4L80E/MT1
  • G2500, Van Cargo, 4.8 V, 4L60E/M30
  • G2500, Van Cargo, 4.8 V, 4L80E/MT1
  • G2500, Van Cargo, 5.3 T, 4L60E/M30
  • G2500, Van Cargo, 5.3 T, 4L80E/MT1
  • G2500, Van Cargo, 6.0 U, LQ4
  • G2500, Van Cargo, 6.0 U, LQ4/KL6
  • G2500, Van Cargo, 6.0 U, LQ4/KL8
  • G2500, Van Passenger Extended
  • G2500, Van Passenger, LQ4
  • G2500, Van Passenger, LQ4/KL6
  • G2500, Van Passenger, LQ4/KL8
  • G3500, Van Cargo Extended, 4.8 V
  • G3500, Van Cargo Extended, 6.0 U
  • G3500, Van Cargo, 4.8 V
  • G3500, Van Cargo, 6.0 U, LQ4
  • G3500, Van Cargo, 6.0 U, LQ4/KL6
  • G3500, Van Cargo, 6.0 U, LQ4/KL8
  • G3500, Van Passenger Extended, 4.8 V
  • G3500, Van Passenger Extended, 6.0 U
  • G3500, Van Passenger, 4.8 V
  • G3500, Van Passenger, 6.0 U, LQ4
  • G3500, Van Passenger, 6.0 U, LQ4/KL6
  • G3500, Van Passenger, 6.0 U, LQ4/KL8
  • H1500, Van Cargo
  • H1500, Van Passenger
  • H2500, Van Cargo
  • H2500, Van Passenger
• Savana Camper Special
  • 4.8 V
  • 6.0 U
• Savana Special
  • 4.8 V
  • 6.0 U
• Sierra
  • 1500 HD, 4WD
  • 1500 HD, RWD
  • 1500, 2D Pickup, 4.3 X, 4WD, Automatic, Automatic
  • 1500, 2D Pickup, 4.3 X, 4WD, Automatic, Standard
  • 1500, 2D Pickup, 4.3 X, 4WD, Part Time, Automatic
  • 1500, 2D Pickup, 4.3 X, 4WD, Part Time, Standard
  • 1500, 2D Pickup, 4.3 X, RWD, Automatic
  • 1500, 2D Pickup, 4.3 X, RWD, Standard
  • 1500, 2D Pickup, 4.8 V, 4WD, Automatic, Automatic
  • 1500, 2D Pickup, 4.8 V, 4WD, Automatic, Standard
  • 1500, 2D Pickup, 4.8 V, 4WD, Part Time, Automatic
  • 1500, 2D Pickup, 4.8 V, 4WD, Part Time, Standard
  • 1500, 2D Pickup, 4.8 V, RWD, Automatic
  • 1500, 2D Pickup, 4.8 V, RWD, Standard
  • 1500, 2D Pickup, 5.3 T, 4WD, Automatic
  • 1500, 2D Pickup, 5.3 T, 4WD, Part Time
  • 1500, 2D Pickup, 5.3 T, RWD
  • 1500, 2D Pickup, 5.3 Z, 4WD, Automatic
  • 1500, 2D Pickup, 5.3 Z, 4WD, Part Time
  • 1500, 2D Pickup, 5.3 Z, RWD
  • 1500, 4D Pickup Extra Cab, 4.3 X
  • 1500, 4D Pickup Extra Cab, 4.8 V, 4WD, Automatic
  • 1500, 4D Pickup Extra Cab, 4.8 V, 4WD, Part Time
  • 1500, 4D Pickup Extra Cab, 4.8 V, RWD
  • 1500, 4D Pickup Extra Cab, 5.3 T, 4WD, Automatic
  • 1500, 4D Pickup Extra Cab, 5.3 T, 4WD, Part Time
  • 1500, 4D Pickup Extra Cab, 5.3 T, RWD
  • 1500, 4D Pickup Extra Cab, 5.3 Z, 4WD, Automatic
  • 1500, 4D Pickup Extra Cab, 5.3 Z, 4WD, Part Time
  • 1500, 4D Pickup Extra Cab, 5.3 Z, RWD
  • 1500, 4D Pickup Extra Cab, 6.0 U, 4WD
  • 1500, 4D Pickup Extra Cab, 6.0 U, AWD
  • 2500 HD, 2D Pickup, 6.0 U, LQ4, 4WD, Automatic, Automatic
  • 2500 HD, 2D Pickup, 6.0 U, LQ4, 4WD, Automatic, Standard
  • 2500 HD, 2D Pickup, 6.0 U, LQ4, 4WD, Part Time, Automatic
  • 2500 HD, 2D Pickup, 6.0 U, LQ4, 4WD, Part Time, Standard
  • 2500 HD, 2D Pickup, 6.0 U, LQ4, RWD, Automatic
  • 2500 HD, 2D Pickup, 6.0 U, LQ4, RWD, Standard
  • 2500 HD, 2D Pickup, 6.0 U, LQ4/KL6, 4WD, Automatic, Automatic
  • 2500 HD, 2D Pickup, 6.0 U, LQ4/KL6, 4WD, Automatic, Standard
  • 2500 HD, 2D Pickup, 6.0 U, LQ4/KL6, 4WD, Part Time, Automatic
  • 2500 HD, 2D Pickup, 6.0 U, LQ4/KL6, 4WD, Part Time, Standard
  • 2500 HD, 2D Pickup, 6.0 U, LQ4/KL6, RWD, Automatic
  • 2500 HD, 2D Pickup, 6.0 U, LQ4/KL6, RWD, Standard
  • 2500 HD, 2D Pickup, 6.0 U, LQ4/KL8, 4WD, Automatic, Automatic
  • 2500 HD, 2D Pickup, 6.0 U, LQ4/KL8, 4WD, Automatic, Standard
  • 2500 HD, 2D Pickup, 6.0 U, LQ4/KL8, 4WD, Part Time, Automatic
  • 2500 HD, 2D Pickup, 6.0 U, LQ4/KL8, 4WD, Part Time, Standard
  • 2500 HD, 2D Pickup, 6.0 U, LQ4/KL8, RWD, Automatic
  • 2500 HD, 2D Pickup, 6.0 U, LQ4/KL8, RWD, Standard
  • 2500 HD, 2D Pickup, 6.6 1, 4WD, Automatic
  • 2500 HD, 2D Pickup, 6.6 1, 4WD, Standard
  • 2500 HD, 2D Pickup, 6.6 1, RWD, Automatic
  • 2500 HD, 2D Pickup, 6.6 1, RWD, Standard
  • 2500 HD, 2D Pickup, 8.1 G, 4WD, Automatic
  • 2500 HD, 2D Pickup, 8.1 G, 4WD, Standard
  • 2500 HD, 2D Pickup, 8.1 G, RWD, Automatic
  • 2500 HD, 2D Pickup, 8.1 G, RWD, Standard
  • 2500 HD, 4D Pickup Extra Cab, 6.0 U, LQ4, 4WD, Automatic, Automatic
  • 2500 HD, 4D Pickup Extra Cab, 6.0 U, LQ4, 4WD, Automatic, Standard
  • 2500 HD, 4D Pickup Extra Cab, 6.0 U, LQ4, 4WD, Part Time, Automatic
  • 2500 HD, 4D Pickup Extra Cab, 6.0 U, LQ4, 4WD, Part Time, Standard
  • 2500 HD, 4D Pickup Extra Cab, 6.0 U, LQ4, RWD, Automatic
  • 2500 HD, 4D Pickup Extra Cab, 6.0 U, LQ4, RWD, Standard
  • 2500 HD, 4D Pickup Extra Cab, 6.0 U, LQ4/KL6, 4WD, Automatic, Automatic
  • 2500 HD, 4D Pickup Extra Cab, 6.0 U, LQ4/KL6, 4WD, Automatic, Standard
  • 2500 HD, 4D Pickup Extra Cab, 6.0 U, LQ4/KL6, 4WD, Part Time, Automatic
  • 2500 HD, 4D Pickup Extra Cab, 6.0 U, LQ4/KL6, 4WD, Part Time, Standard
  • 2500 HD, 4D Pickup Extra Cab, 6.0 U, LQ4/KL6, RWD, Automatic
  • 2500 HD, 4D Pickup Extra Cab, 6.0 U, LQ4/KL6, RWD, Standard
  • 2500 HD, 4D Pickup Extra Cab, 6.0 U, LQ4/KL8, 4WD, Automatic, Automatic
  • 2500 HD, 4D Pickup Extra Cab, 6.0 U, LQ4/KL8, 4WD, Automatic, Standard
  • 2500 HD, 4D Pickup Extra Cab, 6.0 U, LQ4/KL8, 4WD, Part Time, Automatic
  • 2500 HD, 4D Pickup Extra Cab, 6.0 U, LQ4/KL8, 4WD, Part Time, Standard
  • 2500 HD, 4D Pickup Extra Cab, 6.0 U, LQ4/KL8, RWD, Automatic
  • 2500 HD, 4D Pickup Extra Cab, 6.0 U, LQ4/KL8, RWD, Standard
  • 2500 HD, 4D Pickup Extra Cab, 6.6 1, 4WD, Automatic
  • 2500 HD, 4D Pickup Extra Cab, 6.6 1, 4WD, Standard
  • 2500 HD, 4D Pickup Extra Cab, 6.6 1, RWD, Automatic
  • 2500 HD, 4D Pickup Extra Cab, 6.6 1, RWD, Standard
  • 2500 HD, 4D Pickup Extra Cab, 8.1 G, 4WD, Automatic
  • 2500 HD, 4D Pickup Extra Cab, 8.1 G, 4WD, Standard
  • 2500 HD, 4D Pickup Extra Cab, 8.1 G, RWD, Automatic
  • 2500 HD, 4D Pickup Extra Cab, 8.1 G, RWD, Standard
  • 2500 HD, 4D Pickup, 6.0 U, LQ4, 4WD, Automatic, Automatic
  • 2500 HD, 4D Pickup, 6.0 U, LQ4, 4WD, Automatic, Standard
  • 2500 HD, 4D Pickup, 6.0 U, LQ4, 4WD, Part Time, Automatic
  • 2500 HD, 4D Pickup, 6.0 U, LQ4, 4WD, Part Time, Standard
  • 2500 HD, 4D Pickup, 6.0 U, LQ4, RWD, Automatic
  • 2500 HD, 4D Pickup, 6.0 U, LQ4, RWD, Standard
  • 2500 HD, 4D Pickup, 6.0 U, LQ4/KL6, 4WD, Automatic, Automatic
  • 2500 HD, 4D Pickup, 6.0 U, LQ4/KL6, 4WD, Automatic, Standard
  • 2500 HD, 4D Pickup, 6.0 U, LQ4/KL6, 4WD, Part Time, Automatic
  • 2500 HD, 4D Pickup, 6.0 U, LQ4/KL6, 4WD, Part Time, Standard
  • 2500 HD, 4D Pickup, 6.0 U, LQ4/KL6, RWD, Automatic
  • 2500 HD, 4D Pickup, 6.0 U, LQ4/KL6, RWD, Standard
  • 2500 HD, 4D Pickup, 6.0 U, LQ4/KL8, 4WD, Automatic, Automatic
  • 2500 HD, 4D Pickup, 6.0 U, LQ4/KL8, 4WD, Automatic, Standard
  • 2500 HD, 4D Pickup, 6.0 U, LQ4/KL8, 4WD, Part Time, Automatic
  • 2500 HD, 4D Pickup, 6.0 U, LQ4/KL8, 4WD, Part Time, Standard
  • 2500 HD, 4D Pickup, 6.0 U, LQ4/KL8, RWD, Automatic
  • 2500 HD, 4D Pickup, 6.0 U, LQ4/KL8, RWD, Standard
  • 2500 HD, 4D Pickup, 6.6 1, 4WD, Automatic
  • 2500 HD, 4D Pickup, 6.6 1, 4WD, Standard
  • 2500 HD, 4D Pickup, 6.6 1, RWD, Automatic
  • 2500 HD, 4D Pickup, 6.6 1, RWD, Standard
  • 2500 HD, 4D Pickup, 8.1 G, 4WD, Automatic
  • 2500 HD, 4D Pickup, 8.1 G, 4WD, Standard
  • 2500 HD, 4D Pickup, 8.1 G, RWD, Automatic
  • 2500 HD, 4D Pickup, 8.1 G, RWD, Standard
  • 2500, 2D Pickup, LQ4, Automatic
  • 2500, 2D Pickup, LQ4, Standard
  • 2500, 2D Pickup, LQ4/KL6, Automatic
  • 2500, 2D Pickup, LQ4/KL6, Standard
  • 2500, 2D Pickup, LQ4/KL8, Automatic
  • 2500, 2D Pickup, LQ4/KL8, Standard
  • 2500, 4D Pickup Extra Cab, LQ4, Automatic
  • 2500, 4D Pickup Extra Cab, LQ4, Part Time
  • 2500, 4D Pickup Extra Cab, LQ4/KL6, Automatic
  • 2500, 4D Pickup Extra Cab, LQ4/KL6, Part Time
  • 2500, 4D Pickup Extra Cab, LQ4/KL8, Automatic
  • 2500, 4D Pickup Extra Cab, LQ4/KL8, Part Time
  • 3500, 2D Pickup, 6.0 U, LQ4, Automatic, Automatic
  • 3500, 2D Pickup, 6.0 U, LQ4, Automatic, Standard
  • 3500, 2D Pickup, 6.0 U, LQ4, Part Time, Automatic
  • 3500, 2D Pickup, 6.0 U, LQ4, Part Time, Standard
  • 3500, 2D Pickup, 6.0 U, LQ4/KL8
  • 3500, 2D Pickup, 6.6 1, Automatic
  • 3500, 2D Pickup, 6.6 1, Standard
  • 3500, 2D Pickup, 8.1 G, Automatic
  • 3500, 2D Pickup, 8.1 G, Standard
  • 3500, 4D Pickup Extra Cab, 6.0 U, 4WD, Automatic, Automatic
  • 3500, 4D Pickup Extra Cab, 6.0 U, 4WD, Automatic, Standard
  • 3500, 4D Pickup Extra Cab, 6.0 U, 4WD, Part Time, Automatic
  • 3500, 4D Pickup Extra Cab, 6.0 U, 4WD, Part Time, Standard
  • 3500, 4D Pickup Extra Cab, 6.0 U, RWD, Automatic
  • 3500, 4D Pickup Extra Cab, 6.0 U, RWD, Standard
  • 3500, 4D Pickup Extra Cab, 6.6 1, 4WD, Automatic
  • 3500, 4D Pickup Extra Cab, 6.6 1, 4WD, Standard
  • 3500, 4D Pickup Extra Cab, 6.6 1, RWD, Automatic
  • 3500, 4D Pickup Extra Cab, 6.6 1, RWD, Standard
  • 3500, 4D Pickup Extra Cab, 8.1 G, 4WD, Automatic
  • 3500, 4D Pickup Extra Cab, 8.1 G, 4WD, Standard
  • 3500, 4D Pickup Extra Cab, 8.1 G, RWD, Automatic
  • 3500, 4D Pickup Extra Cab, 8.1 G, RWD, Standard
  • 3500, 4D Pickup, 6.0 U, 4WD, Automatic, Automatic
  • 3500, 4D Pickup, 6.0 U, 4WD, Automatic, Standard
  • 3500, 4D Pickup, 6.0 U, 4WD, Part Time, Automatic
  • 3500, 4D Pickup, 6.0 U, 4WD, Part Time, Standard
  • 3500, 4D Pickup, 6.0 U, RWD, Automatic
  • 3500, 4D Pickup, 6.0 U, RWD, Standard
  • 3500, 4D Pickup, 6.6 1, 4WD, Automatic
  • 3500, 4D Pickup, 6.6 1, 4WD, Standard
  • 3500, 4D Pickup, 6.6 1, RWD, Automatic
  • 3500, 4D Pickup, 6.6 1, RWD, Standard
  • 3500, 4D Pickup, 8.1 G, 4WD, Automatic
  • 3500, 4D Pickup, 8.1 G, 4WD, Standard
  • 3500, 4D Pickup, 8.1 G, RWD, Automatic
  • 3500, 4D Pickup, 8.1 G, RWD, Standard
• Sonoma
  • 2D Pickup, 2.2 H, Automatic
  • 2D Pickup, 2.2 H, Standard
  • 2D Pickup, 4.3 X, Automatic
  • 2D Pickup, 4.3 X, Standard
  • 3D Pickup Extra Cab, 2.2 H, Automatic
  • 3D Pickup Extra Cab, 2.2 H, Standard
  • 3D Pickup Extra Cab, 4.3 X, 4WD, Automatic
  • 3D Pickup Extra Cab, 4.3 X, 4WD, Standard
  • 3D Pickup Extra Cab, 4.3 X, RWD, Automatic
  • 3D Pickup Extra Cab, 4.3 X, RWD, Standard
  • 4D Pickup
• Yukon
  • Base, 4.8 V, 4WD
  • Base, 4.8 V, RWD
  • Base, 5.3 T, 4WD
  • Base, 5.3 T, RWD
  • Base, 5.3 Z, 4WD
  • Base, 5.3 Z, RWD
  • Denali
• Yukon XL
  • C1500, 5.3 T
  • C1500, 5.3 Z
  • C2500, 6.0 U
  • C2500, 8.1 G
  • K1500, 5.3 T
  • K1500, 5.3 Z
  • K1500, 6.0 U
  • K2500, 6.0 U
  • K2500, 8.1 G