FM
FM signals only reach about 16 to 65 km (10 to 40 mi). Although the radio has a built-in electronic circuit that automatically works to reduce interference, some static can occur, especially around tall buildings or hills, causing the sound to fade in and out.
See also:
Warranty
OnStar equipment may be
warranted as part of the new-vehicle
limited warranty. The manufacturer
of the vehicle furnishes detailed
warranty information. ...
Limited Guidance Areas
Any area that is not classified as detailed, is a limited guidance area. Limited
guidance streets are displayed on the map but route guidance may not be given on
these streets. Some POI categories ...
Testing the Alarm
To test the alarm:
1. From inside the vehicle, lower the driver window and open the driver door.
2. Activate the system by locking the doors with the power door lock switch while
the door is open, ...