See also:

Getting started
Voice control button on the steering wheel ...

Replacing batteries in the headphones
The headphones use two AAA batteries. It is advisable to have extra batteries on hand during long trips. Battery cover and retaining screw 1. Unscrew the retaining screw and remove the batter ...

Tire age
Tires degrade over time, even when they are not being used. It is recommended that tires generally be replaced after 6 years of normal service. Heat caused by hot climates, frequent high loading c ...