See also:

Inserting/removing the snap-in adapter
1. Press button 1 and remove the cover. 2. Insert the snap-in adapter at the front, arrow 1, and press down, arrow 2, until it engages. To remove the snap-in adapter: press button 1. Insert ...

Activating HDC
Press the button; the LED above the button lights up. ...

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 ...