Opel Owner's Manual page 106

104 Instruments and controls
Automatic time synchronisation
The RDS signal of most VHF
transmitters automatically sets the
time. This can be identified by } in the
display.
Some transmitters do not send a
correct time signal. In such cases, we
recommend to switch off automatic
time synchronisation.
Deactivate (Clock Sync.Off) or
activate (Clock Sync.On) automatic
time synchronisation with the arrow
buttons.
Setting date and time
The value ready for modification is
marked with arrows. Use the arrow
buttons to make the required setting.
Ignition logic
See Infotainment system manual.
Language selection
The display language for some
functions can be selected.
Select the required language with the
arrow buttons.