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:
Garage door opener programming in the U.S.A.
NOTE
When programming the HomeLink®
Wireless Control System for a garage
door opener, it is suggested that you
park the vehicle outside the garage.
1. Unplug the motor of the garage door
op ...
Parking in cold weather
WARNING
Snow can trap dangerous exhaust gases under your vehicle. Keep snow clear of
the exhaust pipe and from around your vehicle if you park the vehicle in snow with
the engine running.
Do not ...
Tire pressure monitoring system (TPMS) (if equipped)
The tire pressure monitoring system provides the driver with the warning message
indicated by sending a signal from a sensor that is installed in each wheel when
tire pressure is severely low.
...
