Vauxhall Astra Owner's Manual page 101

100 Instruments and controls
Select using the Infotainment system
buttons
In the Settings menu, use the OK
button to call up the required function.
Use the arrow buttons to change
settings.
In the BC menu, use the OK button to
call up the required function. Use the
OK button to operate the stop watch
or restart measurement and
calculation.
Select using the left adjuster wheel on
the steering wheel
Press the adjuster wheel to open the
BC menu. In the BC menu press to
operate the stop watch or restart
measurement and calculation.
Turn the adjuster wheel to call up the
required function.
System settings
Press the Settings button of the
Infotainment system. Menu item
Audio then opens.
Call up System with the left arrow
button and select with the OK button.