Chevrolet Cruze Owners Manual: Tire Designations
Tire Size
The following is an example of a typical passenger vehicle tire size.
(1) Passenger (P-Metric) Tire:
The United States version of a metric tire sizing system. The letter P as the first character in the tire size means a passenger vehicle tire engineered to standards set by the U.S. Tire and Rim Association.
(2) Tire Width:
The three-digit number indicates the tire section width in millimeters from sidewall to sidewall.
(3) Aspect Ratio:
A two-digit number that indicates the tire height-to-width measurements.
For example, if the tire size aspect ratio is 60, as shown in item 3 of the illustration, it would mean that the tire's sidewall is 60 percent as high as it is wide.
(4) Construction Code:
A letter code is used to indicate the type of ply construction in the tire.
The letter R means radial ply construction; the letter D means diagonal or bias ply construction; and the letter B means belted-bias ply construction.
(5) Rim Diameter:
Diameter of the wheel in inches.
(6) Service Description:
These characters represent the load index and speed rating of the tire. The load index represents the load carrying capacity a tire is certified to carry. The speed rating is the maximum speed a tire is certified to carry a load.
Tire Sidewall Labeling
Useful information about a tire is molded into its sidewall. The examples show
a typical passenger vehicle tire and a compact spare tire sidewall.
Passenger (P-Metric) Tire Example
(1) Tire Size ...
Tire Terminology and Definitions
Air Pressure: The amount of air inside the tire pressing outward on each
square inch of the tire. Air pressure is expressed in kPa (kilopascal) or psi (pounds
per square inch).
Accessory Weight: ...
Other materials:
Uniform Tire Quality Grading
Quality grades can be found where applicable on the tire sidewall between tread
shoulder and maximum section width. For example:
Treadwear 200 Traction AA Temperature A
The following information relates to the system developed by the United States
National Highway Traffic Safety Administration ...
Basecoat/Clearcoat Paint Systems
Warning: Exposure to isocyanates during paint preparation and
application processes can cause severe breathing problems. Read and
follow all of the instructions from the manufacturers of painting materials,
equipment, and protective gear.
All paint finish repairs of rigid exterior surfaces mus ...
Front Fender Replacement
Preliminary Procedure
Remove the front bumper fascia. Refer to Front Bumper Fascia
Replacement
Remove front bumper fascia guide. Refer to Front Bumper Fascia
Replacement
Remove the wheelhouse liner. Refer to Front Wheelhouse Liner Replacement
Remove the headlamp. Refer to H ...
