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99-3303
FINAL ASSEMBLY
OPERATION OF THE 99-3303
Settings and Adjustments mode
There is a Settings and Adjustments mode available for the individualized adjustment of the
contrast of the display, brightness of the display and backlighting, OnStar volume, and the button
backlighting color.
Entering the Settings and Adjustments mode
To enter the Settings and Adjustments mode, press the INFO and MENU buttons simultaneously.
When the unit settings and adjustments mode is entered, the LCD will display “Func Sel MENU.”
Selecting a Function to Update
When the unit is in the Settings and Adjustment mode, use the MENU button to select a function to
update. The LCD will display the selected function.
See Table 1.0
Updating a function
While in the Settings and Adjustment mode, use the INFO and ENTER buttons to adjust the function
selected and displayed on the LCD. See Table 1.0
** When OnStar activated, INFO and ENTER can be used to adjust the OnStar volume
without first entering the settings and adjustments mode.
Exiting the unit settings and adjustments mode
The unit will automatically exit the settings and adjustments mode if no buttons are pressed for
about 10 seconds.
Table 1.0
Function LCD Display Description of Operation
LCD Contrast Contrast INF/ENT INFO increases LCD contrast
ENTER decreases LCD contrast
LCD Brightness Bright INF/ENT INFO increases LCD brightness
ENTER decreases LCD brightness
OnStar Volume OnSt Vol INF/ENT INFO increases OnStar Volume
ENTER decreases OnStar Volume
Button Backlighting Color Button Color ENT ENTER changes the button
backlighting between Amber
and Green