Cadillac 2000 Seville Owner's Manual page 244

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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.
4-34
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
Tire
driver's door 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.
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
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distributing
D
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Loading Information label at the rear edge of the
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.
If you'll be pulling a trailer that, when loaded, will
weigh more than 2,000 lbs. (900 kg), be sure to use
a properly mounted, weight
sway control of the proper size. This equipment is
very important for proper vehicle loading and good
handling when you're driving.
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mounted
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distributing hitch and