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:
Key lock-in prevention function
This function prevents the doors from
being locked with the key still in the
ignition switch. ...
Setting guidance volume
To set the guidance volume, perform the
following procedure.
1. Select the “GUIDANCE VOL”/“GUIDANCE
VOLUME” menu.
2. Set the guidance volume by operating
the “TUNE/TRACK/CH” dial. ...
Child restraint systems
Infants and small children should always be placed in an infant or child restraint
system in the rear seat while riding in the vehicle.
You should use an infant or child restraint system that mee ...
