Pontiac 2006 Grand Prix - Manual (Page 367)

{ 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 4-33.
• 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 5-67.
• 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.
Low-Profile Performance Tire (GXP)
If your vehicle has P255/45R18 size tires on the front
wheels and P225/50R18 size tires on the rear wheels,
they are classified as low-profile performance tires.
These tires are designed for very responsive driving on
wet or dry pavement. You may also notice more
road noise with low-profile performance tires and that
they tend to wear faster.
Notice: If your vehicle has low-profile tires, they
are more susceptible to damage from road hazards
or curb impact than standard profile tires. Tire
and/or wheel assembly damage can occur when
coming into contact with road hazards like,
potholes, or sharp edged objects, or when sliding
into a curb. Your GM warranty does not cover
this type of damage. Keep tires set to the correct
inflation pressure and, when possible avoid contact
with curbs, potholes, and other road hazards.
5-61