Trailer Wiring Harness; Parking On A Hill; Maintenance When Trailer Towing - GMC 2001 Sierra 1500 Pickup Owner's Manual

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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, 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.

Trailer Wiring Harness

Your vehicle is equipped with one of the following
wiring harnesses for towing a trailer or hauling a
-
slide
in camper.
Basic Trailer Wiring Package
All regular, extended cab crew cab pickups have a
-
six
wire trailer towing harness.
-
The six
wire harness is located at the rear of the vehicle
and is tied to the vehicle's frame. The harness requires
the installation of a trailer
which is available through your dealer.
-
wiring harness connector,
4-77

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2001 sierra

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