2000 GMC Envoy Owner's Manual - Page 220

2000 GMC Envoy Manual

Page 220 highlights

When You Are Ready to Leave After Parking on a Hill 1. Apply your regular brakes and hold the pedal down while you: Trailer Wiring Harness The heavy-duty trailer wiring is an eight-wire harness assembly. The harness is stored under the vehicle, on the driver's side corner frame rear crossmember. The harness is fused in the engine compartment fuse block. See "Fuses and Circuit Breakers" in the Index. The harness does not have a connector and should be wired by a qualified electrical technician. The technician can use the following color code chart when connecting the wiring harness to your trailer. D Dark Blue: Use for electric trailer brakes or auxiliary wiring. D Red: Use for battery charging; it connects to the starter solenoid. D Light Green: Back-up lamps. D Brown: Taillamps and parking lamps. D Yellow: Left stoplamp and turn signal. D Dark Green: Right stoplamp and turn signal. D White: Ground wire. D Light Blue: Auxiliary stoplamp. Securely attach the harness to the trailer, then tape or strap it to your vehicle's frame rail. Be sure you leave it loose enough so the wiring doesn't bend or break, but not so loose that it drags on the ground. Store the harness in its original place. Wrap the harness together and tie it neatly so it won't be damaged. D Start your engine; D Shift into a gear; and D Release the parking brake. 2. Let up on the brake pedal. 3. Drive slowly until the trailer is clear of the chocks. 4. Stop and have someone pick up and store the chocks. Maintenance When Trailer Towing Your vehicle will need service more often when you're pulling a trailer. See the Maintenance Schedule for more on this. Things that are especially important in trailer operation are automatic transmission fluid (don't overfill), engine oil, axle lubricant, belt, cooling system and brake system. Each of these is covered in this manual, and the Index will help you find them quickly. If you're trailering, it's a good idea to review these sections before you start your trip. Check periodically to see that all hitch nuts and bolts are tight. 4-56

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