See also:

Downhill gradients
On long and steep gradients, you must reduce the load on the brakes by shifting early to a lower gear. This allows you to take advantage of the engine braking effect and helps avoid overheati ...

Making adjustments in 5 mph (Canada:

10 km/h) increments
Briefly press the cruise control lever beyond the pressure point, up 1 for a higher speed or down 2 for a lower speed. The last speed stored is increased or reduced. ...

Call disconnection while the vehicle is in motion
A call may be disconnected if: • there is insufficient network coverage in certain areas. • you move from one transmitter/receiver area (cell) into another and no channels are free. • you u ...