Buick 2001 Century Owner's Manual page 213

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If you're using a weight carrying hitch, the trailer
tongue (A) should weigh 10 percent of the total loaded
trailer weight (B). If you have a weight
hitch, the trailer tongue (A) should weigh 12 percent
of the total loaded trailer weight (B).
After you've loaded your trailer, weigh the trailer and
then the tongue, separately, to see if the weights are
proper. If they aren't, you may be able to get them
right simply by moving some items around in the trailer.
Total Weight on Your Vehicle's Tires
Be sure your vehicle's tires are inflated to the upper
limit for cold tires. You'll find these numbers on the
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Tire Loading Information label (found inside the
trunk lid) or see "Loading Your Vehicle" in the Index.
Then be sure you don't go over the GVW limit for your
vehicle, including the weight of the trailer tongue.
Hitches
It's important to have the correct hitch equipment.
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distributing
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:
D
D
The rear bumper on your vehicle is not intended
for hitches. Do not attach rental hitches or other
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bumper type hitches to it. Use only a frame
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, 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 "Carbon Monoxide" in the
Index. Dirt and water can, too.
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mounted
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