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:
Turn Signals When Towing a
Trailer
The arrows on the instrument panel
flash whenever signaling a turn or
lane change. Properly hooked up,
the trailer lamps also flash, telling
other drivers the vehicle is turning,
changing la ...
Brake System Warning Light
The vehicle brake system consists of two hydraulic circuits.
If one circuit is not working, the remaining circuit can still work to stop
the vehicle. For normal braking performance, both circuits ...
Vehicle and Power Issues
OnStar services require a vehicle
electrical system, wireless service,
and GPS satellite technologies to be
available and operating for features
to function properly. These systems
may not o ...