Cadillac 2009 Model Vehicle User Manual


 
CAUTION: (Continued)
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 6-60.
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.
See High-Speed Operation on page 6-61 for
inflation pressure adjustment for high speed
driving.
22-Inch Tires
If your vehicle has the optional 22-inch
P285/45R22 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. See Off-Road Driving on
page 5-12, for additional information.
Tire Sidewall Labeling
Useful information about a tire is molded into the
sidewall. The following illustration is an example
of a typical P-Metric tire sidewall.
(A) Tire Size
: The tire size code is a combination
of letters and numbers used to define a particular
tire’s width, height, aspect ratio, construction
type, and service description. See the “Tire Size”
illustration later in this section for more detail.
Passenger (P-Metric) Tire
6-55