See also:

Switching the warning function on/off
Press the button On: the LED lights up. Off: the LED goes out. The state is stored for the remote control currently in use. ...

Switching between letters and numbers
Depending on the menu, you can switch between entering letters and numbers: ...

External temperature
External temperature warning If the display drops to +37 ℉/ +3 ℃, a signal sounds. A Check Control message is displayed. There is the increased danger of ice. Ice on roads Even ...