See also:

Vehicle Overview
GMC redesigned its full-size vans for the first time in seven years for the 2003 model year. The 2003 Savanas got upgraded powertrains, fresh features and an updated appearance. Three industry fir ...

Basic Trailer Wiring
All regular, extended cab and crew cab pickups have a seven-wire trailer towing harness. For vehicles not equipped with heavy duty trailering, the harness is secured to the vehicle's frame behind the ...

Overview
For vehicles equipped with the MyLink® or IntelliLink® infotainment system, see the separate MyLink/ IntelliLink Features and Functions Guide for more information. Keeping your eyes on the road ...