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:
Initializing the registered data
To initialize the registered data, perform the following procedure.
1. Select the “SETUP” menu.
2. Select the “SYSTEM SETUP” menu.
3. Select “INITIALIZE” by operating the “TUNE/TRACK/CH” dial.
4. ...
Periodic inspections
To keep your vehicle in the best condition at all times, always have the recommended maintenance services listed in the maintenance schedule in the “Warranty and Maintenance Booklet” performed at the ...
Brake fluid level warning
This light illuminates when the brake fluid level has dropped
to near the “MIN” level of the brake fluid reservoir with the ignition switch in
the “ON” position and with the parking brake released ...
