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:
Immobilizer
FCC WARNING
Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.
The immobilizer system is designed t ...
Recommended clutch fluid
CAUTION
Never use different brands of clutch fluid together. Also, avoid mixing DOT 3
and DOT 4 brake fluids even if they are the same brand. ...
Shock sensors (dealer option)
The shock sensors trigger the alarm system when they sense impacts applied to
the vehicle and when any of their electric wires is cut. The alarm system causes
the horn to sound and the turn signal ...
