GMC Sierra Owners Manuals

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Radio(s)
VOL/ : Press to turn the system on and off. Turn to increase or decrease the volume. SOURCE: Press to choose between FM, AM, XM™, if equipped, CD, or AUX. MENU/SEL: Turn to select radio station ...

OnStar®
If equipped, this vehicle has a comprehensive, in-vehicle system that can connect to a live Advisor for Emergency, Security, Navigation, Connection, and Diagnostic Services. See OnStar Overview on pag ...

Using the “List” Command
1. Press and hold for two seconds. 2. Say “Directory.” 3. Say “Hands-Free Calling.” 4. Say “List.” ...