Safety Chains - GMC 2003 Yukon Owner's Manual

Hitches
It's important to have the correct hitch equipment.
Crosswinds, large trucks going by and rough roads are
a few reasons why you'll need the right hitch. Here
are some rules to follow:
•
If you use a step-bumper hitch, your bumper could
be damaged in sharp turns. Make sure you have
ample room when turning to avoid contact between
the trailer and the bumper.
•
If you'll be pulling a trailer that, when loaded, will
weigh more than 5,000 lbs (2 270 kg) be sure to
use a properly mounted, weight-distributing
hitch and sway control of the proper size. This
equipment is very important for proper vehicle
loading and good handling when you're driving.
•
Will you have to make any holes in the body of
your vehicle when you install a trailer hitch?
If you do, then be sure to seal the holes later when
you remove the hitch. If you don't seal them,
deadly carbon monoxide (CO) from your exhaust
can get into your vehicle. See Engine Exhaust
on page 2-38 . Dirt and water can, too.

Safety Chains

You should always attach safety chains between your
vehicle and your trailer. Cross the safety chains
under the tongue of the trailer to help prevent the tongue
from contacting the road if it becomes separated from
the hitch.
If you are towing a trailer up to 5,000 lbs (2 270 kg) with
a factory-installed step bumper, you may attach the
safety chains to the attaching points on the bumper. If
you are towing a trailer up to your vehicle's trailer rating
limit, you may attach the safety chains to the attaching
point on the hitch platform. If you are towing with
an aftermarket hitch, following the trailer or hitch
manufacturer's recommendation for attaching safety
chain. Always leave just enough slack so you can turn
with your rig. Never allow safety chains to drag on
the ground.
4-67