Using the “Re-dial” Command
1. Press and hold 
for two seconds.
2. After the tone, say “Re-dial.” Once connected, the person called will be heard through the audio speakers.
See also:
Vehicle Reminder Messages
ICE POSSIBLE DRIVE WITH CARE
This message is displayed when ice conditions are possible.
TURN WIPER CONTROL TO INTERMITTENT FIRST
This message is displayed when attempting to adjust the intermitten ...
How the System Works
URPA comes on automatically when the shift lever is moved into R (Reverse). A single tone sounds to indicate the system is working.
URPA operates only at speeds less than 8 km/h (5 mph).
An obstacle ...
Navigation
OnStar navigation requires the Directions and Connections service plan.
Push to receive directions or have
them sent to the vehicle navigation screen. Destinations can also be forwarded to
the v ...