Tire Sidewall Labeling - GMC 2007 Sierra Owner's Manual

CAUTION: (Continued)
Tire pressure should be checked when
your vehicle's tires are cold. See
Inflation - Tire Pressure on page 559.
•
Overinflated tires are more likely to
be cut, punctured, or broken by a
sudden impact — such as when
you hit a pothole. Keep tires at
the recommended pressure.
•
Worn, old tires can cause accidents. If
the tire's tread is badly worn, or if
your vehicle's tires have been
damaged, replace them.
20-Inch Tires
If your vehicle has the optional 20-inch
P275/55R20 size tires, they are classified as
touring tires and are designed for on road use. The
low-profile, wide tread design is not recommended
for "off-road" driving or commercial uses such
as snow plowing. See Off-Road Driving on
page 390 and Adding a Snow Plow or Similar
Equipment on page 432 for additional information.

Tire Sidewall Labeling

Useful information about a tire is molded into the
sidewall. The following illustrations are examples
of a typical P-Metric and a LT-Metric tire sidewall.
551