Compass Variance (Zone) Procedure
1. Do not set the compass zone when the vehicle is moving. Only set it when the vehicle is in P (Park).
Press the vehicle information button until PRESS 
TO CHANGE COMPASS ZONE displays. Or, if the vehicle does not have DIC buttons, press the trip odometer reset stem until CHANGE COMPASS ZONE displays.
2. Find the vehicle's current location and variance zone number on the map.
Zones 1 through 15 are available.
3. Press the set/reset button to scroll through and select the appropriate variance zone.
4. Press the trip/fuel button until the vehicle heading, for example, N for North, is displayed in the DIC. Or, if the vehicle does not have DIC buttons, press and hold the trip odometer reset stem for two seconds to select the next available variance zone. Repeat this step until the appropriate variance zone is displayed.
5. If calibration is necessary, calibrate the compass. See “Compass Calibration Procedure” following.
See also:
Place a Call Using a Stored Number
1. Push . System responds: “OnStar
ready.”
2. Say “Call <name tag>.” System responds: “OK, calling <name tag>.”
Verify Minutes and Expiration
Push and say “minutes” t ...
Power Outlets
The accessory power outlets can be used to connect electrical equipment, such
as a cell phone or MP3 player.
There are four accessory power outlets in the following locations: below the
CD slot, ...
Driver and Passenger Side Temperature Controls
The driver and passenger side temperature buttons are used to adjust the temperature of the air coming through the system on the driver or passenger side of the vehicle. The temperature can be adjuste ...