See also:

Dual Tone Multi-Frequency (DTMF) Tones
The in-vehicle Bluetooth system can send numbers and numbers stored as name tags during a call. This is used when calling a menu driven phone system. Account numbers can be programmed into the ...

Comfort and Convenience
Select the Comfort and Convenience menu and Chime Volume will be displayed. Chime Volume This allows the selection of the chime volume level. Press the TUNE/MENU knob when Chime Volume is highlight ...

OnStar Personal Identification Number (PIN)
A PIN is needed to access some of the OnStar services, like Remote Door Unlock and Stolen Vehicle Assistance. You will be prompted to change the PIN the first time when speaking with an Advi ...