Cellular and GPS Antennas
Avoid placing items over or near the antenna to prevent blocking cellular and GPS signal reception. Cellular reception is required for OnStar to send remote signals to the vehicle.
See also:
Engine Cooling When Trailer Towing
The cooling system may temporarily overheat during
severe operating conditions. See Engine Overheating. ...
Turn-by-Turn Navigation
1. Push to connect to a live
Advisor.
2. Request directions.
3. Directions are downloaded to the
vehicle.
4. Follow the voice-guided
commands. ...
Using the Digit Dial Command
1. Press and hold for two
seconds. The system
responds with “Ready” followed by a tone.
2. Say “Digit Dial”. The system responds with “Digit
dial using <phone name>, please say ...
