Safety Chains; Trailer Brakes - Pontiac Montana SV6 2008 Owner's Manual

It is important that you make sure your vehicle does not
exceed any of its ratings — GCWR, GVWR, RGAWR,
Maximum Trailer Rating or Tongue Weight. The
only way to be sure you are not exceeding any of these
ratings is to weigh your vehicle and trailer.
Total Weight on Your Vehicle's Tires
Be sure your vehicle's tires are inflated to the upper limit
for cold tires. You will find these numbers on the
Certification/Tire label at the rear edge of the driver's
door or see Loading Your Vehicle on page 4-21.
Then be sure you do not go over the GVW limit for your
vehicle, including the weight of the trailer tongue.
Hitches
It is important to have the correct hitch equipment.
Crosswinds, large trucks going by, and rough roads are
a few reasons why you will need the right hitch. Here
are some rules to follow:
•
The bumpers on your vehicle are not intended for
hitches. Do not attach rental hitches or other
bumper-type hitches to them. Use only a
frame-mounted hitch that does not attach to the
bumper.
•
Will you have to make any holes in the body of your
vehicle when you install a trailer hitch?
If you do, remember to seal the holes later when you
remove the hitch. If you do not seal them, deadly
carbon monoxide (CO) from your exhaust can get
into your vehicle. See Engine Exhaust on page 2-42.
Dirt and water can, too.

Safety Chains

You should always attach 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.
Instructions about safety chains may be provided by the
hitch manufacturer or by the trailer manufacturer. Follow
the manufacturer's recommendation for attaching safety
chains and do not attach them to the bumper. Always
leave just enough slack so you can turn with your rig.
Never allow safety chains to drag on the ground.

Trailer Brakes

If your trailer weighs more than 1,000 lbs (450 kg)
loaded, then it needs its own brakes – and they must be
adequate. Be sure to read and follow the instructions for
the trailer brakes so you will be able to install, adjust, and
maintain them properly.
Because your vehicle may have anti-lock brakes, do not
try to tap into your vehicle's brake system. If you do,
both brake systems will not work well, or at all.
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