Vehicle and Power Issues
OnStar services require a vehicle electrical system, wireless service, and GPS satellite technologies to be available and operating for features to function properly. These systems may not operate if the battery is discharged or disconnected.
See also:
Express-Open/Express-Close
To express-open the sunroof from
the closed or vent position, fully
press and release the rear of the
switch (B). The sunroof opens
automatically. To stop the sunroof
partway, press the swit ...
Air Conditioning Mode
This allows selection of automatic
start of the air conditioning upon
vehicle start. Selecting On indicates
the air conditioning will be on when
the vehicle is started. Selecting Off
turns t ...
Alarm Warning
Press the customization button until ALARM
WARNING: BOTH appears in the display. To
select your preference for alarm warning, press the
select button while ALARM WARNING: BOTH is
displayed on the ...