Tire Inspection And Rotation; When To Check; How To Check - GMC Chevrolet SSR 2003 Owner's Manual

Notice: Don't let anyone tell you that underinflation
or overinflation is all right. It's not. If your tires
don't have enough air (underinflation), you can get
the following:
•
Too much flexing
•
Too much heat
•
Tire overloading
•
Bad wear
•
Bad handling
•
Bad fuel economy
If your tires have too much air (overinflation), you
can get the following:
•
Unusual wear
•
Bad handling
•
Rough ride
•
Needless damage from road hazards

When to Check

Check your tires once a month or more.

How to Check

Use a good quality pocket-type gage to check tire
pressure. You can't tell if your tires are properly inflated
simply by looking at them. Radial tires may look
properly inflated even when they're underinflated.
Check the tire's inflation pressure when the tires
are cold. Cold means your vehicle has been sitting
for at least three hours or driven no more than
1 mile (1.6 km).
Remove the valve cap from the tire valve stem. Press
the tire gage firmly onto the valve to get a pressure
measurement. If the cold tire inflation pressure matches
the recommended pressure on the Certification/Tire label
or the Tire and Loading Information label, no further
adjustment is necessary. If the inflation pressure is low,
add air until you reach the recommended amount.
If you overfill the tire, release air by pushing on the
metal stem in the center of the tire valve. Recheck the
tire pressure with the tire gage.
Be sure to put the valve caps back on the valve stems.
They help prevent leaks by keeping out dirt and
moisture.

Tire Inspection and Rotation

The tires on your vehicle are different sizes front to rear.
Due to this, your tires should not be rotated. Each tire
and wheel should be used only in the position it is in.
Check your tires and wheels regularly for unusual wear
and damage. Also see, Scheduled Maintenance on
page 6-5, When It Is Time for New Tires on page 5-58
and Wheel Replacement on page 5-62.
5-57