Dual Tone Multi-Frequency (DTMF) Tones

The in—vehicle Bluetooth system can send numbers during a call. This is used when calling a menu—driven phone system.

1. Turn or press the MENU/ SELECT knob and select Enter Number.
2. Enter the character sequence.

See “Entering a Character Sequence” in Operation for more information.

    See also:

    Engine Oil Change
    When the CHANGE ENGINE OIL SOON message displays, have the engine oil and filter changed within the next 1 000 km/600 mi. If driven under the best conditions, the engine oil life system might not ...

    Using Cruise Control on Hills
    How well the cruise control works on hills depends on the vehicle speed, the load, and the steepness of the hills. When going up steep hills, pressing the accelerator pedal may be necessary to mai ...

    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 ...