2011 Acura RL Owner's Manual - Page 300

Compass System (U.S. model without navigation system) Brightness Black Level Volume There are 11 possible brightness settings. To change the brightness, say ''Brightness up'' or ''Brightness down.'' You can also select Brightness and change the setting by turning the interface knob. Tip: If you are having trouble viewing the screen in bright lighting conditions, try increasing the brightness. Contrast There are 11 possible black level settings. To change the black level, say ''Black level up'' or ''Black level down.'' You can also select Black Level and change the setting by turning the interface knob. Changes to the display are very subtle this is normal. NOTE: You can have separate daytime and nighttime settings for brightness, contrast, and black level. Adjust each setting when the display is in either daytime or nighttime mode. Use the Display mode button (see page 298 ) to select daytime or nighttime mode. To adjust the volume of the system voice, do one of these actions: Say ''Volume up'' or ''Volume down.'' Select Volume, then change the setting by turning the interface knob. Select volume off. NOTE: If you turn the volume off, you will not hear voice command confirmations. There are 11 possible contrast settings. To adjust the contrast, say ''Contrast up'' or ''Contrast down.'' You can also select Contrast and change the setting by turning the interface knob. Changes to the display are very subtle this is normal. 294