Geo PRIZM 1993 Manual page 246

nce Care
Tire Inspection and Rotation
To make your tires last longer, have
them inspected and rotated at the
mileages recommended in your
Maintenance Schedule. See "Scheduled
Maintenance Services" in the Index.
Use this rotation pattern.
After the tires have been rotated, adjust
the front and rear inflation pressure as
shown on the Tire-Loading Information
label. Make certain that all wheel nuts
are properly tightened. See "Wheel Nut
Torque'' in the Index.
A
Rust or dirt on a wheel, or
on
parts to which it is fastened,
can make the wheel nuts become
loose after a time. The wheel
could come off and cause an
accident. When you change a
wheel, remove any rust or dirt
from places where the wheel
attaches to the vehicle. In an
emergency, you can use a cloth or
a paper towel to do this; but be
sure to use a scraper or wire brush
later, if you need to, to get all the
rust or dirt off. (See "Changing a
Flat Tire" in the Index.)
When It's Time for New Tires
One way to tell when
it's
time for new
tires is to check the treadwear
indicators, which
will
appear when your
tires have only 2/32 inch (1.6 mm) or
less of tread remaining.
You need a new tire i f
You can see the indicators at three
You can see cord or fabric showing
The tread
or
sidewall is cracked, cut
places around the tire.
through the tire's rubber.
or snagged deep enough to show cord
or fabric.