See also:

Tire identification marks
Tire size 255/50 R 19 103 Y 255: nominal width in mm 50: aspect ratio in % R: radial tire code 19: rim diameter in inches 103: load rating, not for ZR tires Y: speed rating, before the R on ZR ...

Pressure specifications
The tire inflation pressure table, contains all pressure specifications for the specified tire sizes at the ambient temperature. Pressure specifications apply to approved tire sizes and recommen ...

Initiating an Emergency Request
1. Press the cover briefly to open it. 2. Press the SOS button until the LED in the button lights up. The LED lights up: an Emergency Request was initiated. If the situation allows, wait ...