Setting the 12/24 Hour Format
Buick LaCrosse / Buick LaCrosse Owners Manual / Instruments and Controls / Controls / Clock (Radio with CD and Touchscreen) / Setting the 12/24 Hour Format
1. Press the CONFIG button and
select Time and Date Settings,
or press 
.
2. Highlight Set Time Format.
3. Press SELECT to select the 12 hour or 24 hour display format.
See also:
Dome Lamp Override
The dome override
button is located below
the exterior lamps knob.
To turn the dome lamps off, press the button.
The dome lamps will remain off when a door is
open. This will override the ill ...
Vehicle Care/Appearance Materials
...
Exit Lighting
This allows selection of how long
the exterior lamps stay on when
leaving the vehicle and it is dark
outside.
Press SELECT when Exit Lighting is
highlighted. Turn the Menu knob to
select Of ...