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:
Shifting out of Park
This vehicle is equipped with an electronic shift lock release system. The shift
lock release is designed to:
Prevent ignition key removal unless the shift lever is in P (Park) with
the shift ...
Compass Messages
CAL
This message is displayed when the compass needs to be calibrated.
See Compass.
Three dashes will be displayed if the compass needs service. See your dealer
for service. ...
Maintenance When Trailer
Towing
The vehicle needs service more
often when pulling a trailer. See this
manual's Maintenance Schedule or
Index for more information. Things
that are especially important in
trailer operation a ...