Call Waiting

Call waiting must be supported on the cell phone and enabled by the wireless service carrier.

• Press • Press  again to return to the original call. to answer an incoming call when another call is active. The original call is placed on hold.

• Press • To ignore the incoming call, no action is required. again to return to the original call.

• To ignore the incoming call, no action is required.

• Press Three-Way Calling to disconnect the current call and switch to the call on hold.

    See also:

    What to Add
    Use only new DOT 3 brake fluid from a sealed container. See Recommended Fluids and Lubricants on page 11‑12. Always clean the brake fluid reservoir cap and the area around the cap before re ...

    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. ...

    Tow/Haul Mode
    (Tow/Haul): The vehicle may have a Tow/Haul mode. The button is located on the instrument panel under the climate controls. Push the button to activate the system. Push it again to deactivate the s ...