P Metric
With the P-Metric system, Section Width is measured in millimeters.
To convert millimeters into inches, divide by 25.4. The Aspect Ratio (Section Height divided by Section Width) helps provide more dimensional information about the tire size.
Example:

(1) P = Certain tire type used on light duty vehicles such as passenger
cars
(2) Section Width in millimeters
(3) Aspect Ratio (= section height 7 section width).
(4) R = Radial Construction
(5) Rim diameter in inches
See also:
Activating and deactivating the alarm system
To change the setting of your vehicle’s alarm system for activation or deactivation, do the following.
1. Disarm the alarm system. Refer to “Disarming the system”.
2. Sit in the driver’s seat and sh ...
Effect vehicle modifications made for persons with disabilities may have on
SUBARU advanced frontal airbag system operation (U.S. only)
Changing or moving any parts of the front seats, rear seat, seatbelts, front bumper, front side frame, radiator panel, instrument panel, combination meter, steering wheel, steering column, tire, suspe ...
Tire pressures and wear
Maintaining the correct tire pressures helps to maximize the tires’ service lives and is essential for good running performance.
Check and, if necessary, adjust the pressure of each tire (including t ...
