GMC 2006 Sierra - Manual (Page 484)

Tires
Your new vehicle comes with high-quality tires made by
a leading tire manufacturer. If you ever have questions
about your tire warranty and where to obtain service,
see your GM Warranty booklet for details. For additional
information refer to the tire manufacturer’s booklet
included with your vehicle’s Owner’s Manual.
{ CAUTION:
Poorly maintained and improperly used tires
are dangerous.
• Overloading your tires can cause
overheating as a result of too much friction.
You could have an air-out and a serious
accident. See Loading Your Vehicle on
page 4-48.
CAUTION: (Continued)
CAUTION: (Continued)
• Underinflated tires pose the same danger
as overloaded tires. The resulting accident
could cause serious injury. Check all tires
frequently to maintain the recommended
pressure. Tire pressure should be checked
when your tires are cold. See Inflation - Tire
Pressure on page 5-79.
• 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 your
tread is badly worn, or if your 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 4-16 and Adding a Snow Plow or Similar
Equipment on page 4-54 for additional information.
5-72