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:
Checking the fluid level
1) “MAX” level mark
2) “MIN” level mark
Check the fluid level monthly.
Check the fluid level on the outside of the reservoir. If the level is below “MIN”, add the recommended brake fluid to “MAX” ...
Preparing to drive
You should perform the following checks and adjustments every day before you
start driving.
1. Check that all windows, mirrors, and lights are clean and unobstructed.
2. Check the appearance and c ...
ABS system self-check
You may feel a slight shock in the brake pedal and hear the operating sound of
ABS from the engine compartment just after the vehicle is started. This is caused
by an automatic functional test of ...
