Muting a Call

During a call, all sounds from inside the vehicle can be muted so that the person on the other end of the call cannot hear them.

• To mute a call, press Transferring a Call , and then say “Mute call.” . To cancel mute, press Transferring a Call , and then say “Un-mute call.”

    See also:

    New for 2011
    The Sierra Hybrid gets GM's OnStar 9.0 telematics system that GM says provides better voice recognition. GM also said they have worked to cut down on the amount of wind noise occupants hear. ...

    How to Reset the Engine Oil Life System
    Reset the system whenever the engine oil is changed so that the system can calculate the next engine oil change. To reset the system: 1. Turn the ignition to ON/RUN, with the engine off. 2. Press ...

    Steering Wheel Controls
    Steering Wheel Controls or : Press to change favorite radio stations, select tracks on a CD/DVD, or navigate tracks or folders on an iPod® or USB device. : Press to silence the vehicle speake ...