Hands-Free Calling
1. Push 
. System responds:
“OnStar ready.” 2. Say “Dial.” System responds:
“Please say the name or number to call.” 3. Say the entire number without pausing, including a “1” and the area code. System responds:
“OK calling.”
See also:
Universal Remote System Operation
Press and hold the appropriate button for at least half of a second.
The indicator light will come on while the signal is being transmitted. ...
Service Vehicle Messages
SERVICE A/C (Air Conditioning) SYSTEM
This message displays when the electronic sensors that control the air conditioning and heating systems are no longer working.
Have the climate control system s ...
Making a Call
To make a call:
1. Press 5 once or twice (depending on the radio).
2. Enter the phone number.
3. Select Call to start dialing the number. ...