Cadillac 2009 owner manual Tire Sidewall Labeling, Inch Tires, Passenger P-Metric Tire

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.

Passenger (P-Metric) Tire

(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.

6-55