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:
Types of tires
You should be familiar with type of tires present on your vehicle. ...
Driver’s control center differential auto indicator light (STI)
This light functions while the ignition switch is “ON”. When illuminated, it indicates that the driver’s control center differential is set to the auto mode. It turns off when the driver’s control c ...
Rear seats
Seatbelts provide maximum restraint
when the occupant sits well
back and upright in the seat. Do not
put cushions or any other materials
between occupants and seatbacks
or seat cushion ...
