See also:

Winter tires
Do not drive with a tire tread depth of less than 0.16 in/4 mm. Below a tread depth of 0.16 in/4 mm, tires are less suitable for winter operation. ...

Remove unnecessary cargo
Additional weight increases fuel consumption. ...

Swapping the telephone and additional telephone
The function of the telephone and additional telephone can be swapped automatically. 1. "Telephone" 2. "Bluetooth® (phone)" 3. "Swap phone/addit. phone" ...