GMC Sierra 2000, Owner'S Manual

Page: 231 / 426

4-61
When You Are Ready to Leave After
Parking on a Hill
1. Apply your regular brakes and hold the pedal down
while you:
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, belts, 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.
Trailer Wiring Harness
A. Light
-
Duty Wiring Harness
B. Additional Heavy
-
Duty Wiring
C. Tie Straps
An eight
-
wire harness is stored under the rear end of
your vehicle. Five wires (A) are located between the rear
bumper and the spare tire, near the center. This wiring
harness is tie
-
strapped to the taillamp and stoplamp
harness. Three wires (B) (light gauge white, blue and
orange) are located at the rear left hand frame rail.