Voice Pass-Thru
Voice pass-thru allows access to the voice recognition commands on the cell phone. See your cell phone manufacturer's user guide to see if the cell phone supports this feature.
To access contacts stored in the cell phone:
1. Press and hold 
for two seconds.
2. Say “Bluetooth.” This command can be skipped.
3. Say “Voice.” The system responds “OK, accessing <phone name>.” The cell phone's normal prompt messages will go through their cycle according to the phone's operating instructions.
See also:
Onstar.com
The website provides access to account information, manages the OnStar subscription, and allows viewing of videos of each service.
Get subscription plan pricing and sign up for OnStar Vehicle Diagnos ...
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left, move that hand to the left. To move the trailer to the right, move your hand
to the right. Always back up slow ...
Air Conditioning
(Air Conditioning): Press to turn the air conditioning (A/C) on and off. An indicator light comes on when A/C is on.
The A/C does not work when the outside temperature is below 4°C (40°F). If is ...