Owner's Manual
Page 255
...-Mounted Stoplamp (CHMSL) If you need to upgrade your vehicle to the vehicle's frame. Basic Trailer Wiring Package All regular and extended cab gasoline engine pickups have a six-wire trailer towing harness. The six-wire harness is located at the rear of the vehicle and is equipped with a seven-pin universal heavy-duty trailer connector are available from your dealer.
...-Mounted Stoplamp (CHMSL) If you need to upgrade your vehicle to the vehicle's frame. Basic Trailer Wiring Package All regular and extended cab gasoline engine pickups have a six-wire trailer towing harness. The six-wire harness is located at the rear of the vehicle and is equipped with a seven-pin universal heavy-duty trailer connector are available from your dealer.
Owner's Manual
Page 256
... the vehicle's frame.* The harness connector can be plugged into a seven-pin universal heavy-duty trailer connector available through your GM dealer. 4-66 yellowblue Basic Trailer Wiring Package (Diesel Engine) Regular and extended cab pickups equipped with a 6.5L Turbo Diesel engine have an eight-wire trailer towing harness. * The single CHMSL wire is tied to the seven-wire harness and is used if...
... the vehicle's frame.* The harness connector can be plugged into a seven-pin universal heavy-duty trailer connector available through your GM dealer. 4-66 yellowblue Basic Trailer Wiring Package (Diesel Engine) Regular and extended cab pickups equipped with a 6.5L Turbo Diesel engine have an eight-wire trailer towing harness. * The single CHMSL wire is tied to the seven-wire harness and is used if...
Owner's Manual
Page 257
... a seven-pin universal heavy-duty trailer connector is attached to the trailer wiring harness for use with the eight-wire trailer towing harness. A jumper harness for an electric trailer brake controller and a trailer battery feed fuse are included with this trailering package. (See "Instrument Panel Jumper Wiring Harness" later in this section.) If you need to tow a light-duty trailer with a standard four-way round...
... a seven-pin universal heavy-duty trailer connector is attached to the trailer wiring harness for use with the eight-wire trailer towing harness. A jumper harness for an electric trailer brake controller and a trailer battery feed fuse are included with this trailering package. (See "Instrument Panel Jumper Wiring Harness" later in this section.) If you need to tow a light-duty trailer with a standard four-way round...
Owner's Manual
Page 258
.... When the camper-wiring harness is equipped with the "Heavy-Duty Trailering" option, please refer to the vehicle's frame. A connector will have to be added to the wiring harness which connects to the frame bracket. yellowblue Camper/Fifth-Wheel Trailer Wiring Package (If Equipped) The eight-wire camper harness is located under the front edge of the pickup box on the...
.... When the camper-wiring harness is equipped with the "Heavy-Duty Trailering" option, please refer to the vehicle's frame. A connector will have to be added to the wiring harness which connects to the frame bracket. yellowblue Camper/Fifth-Wheel Trailer Wiring Package (If Equipped) The eight-wire camper harness is located under the front edge of the pickup box on the...