Tire Designations

Tire Size

The following is an example of a typical passenger vehicle tire size.

(A) Passenger (P-Metric) Tire:

(A) 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.

(B) Tire Width: The three-digit number indicates the tire section width in millimeters from sidewall to sidewall.

(C) 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 C of the illustration, it would mean that the tire's sidewall is 60 percent as high as it is wide.

(D) 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.

(E) Rim Diameter: Diameter of the wheel in inches

(F) 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.

    See also:

    Outside Curb View Assist Mirror
    If the vehicle has this feature, the passenger’s outside mirror will adjust to a preset tilt position while the vehicle is in REVERSE (R) gear. Curb view assist may be useful when you are para ...

    Time and Date Settings
    From the Time & Date Settings screen button, press to display the Time & Date Settings menu. Set Time: Press the up or down arrows to increase or decrease the Hours and Minutes displa ...

    If the On Indicator is Lit for a Child Restraint
    If a child restraint has been installed and the on indicator is lit: 1. Turn the vehicle off. 2. Remove the child restraint from the vehicle. 3. Remove any additional items from the seat such as bl ...