2009 GMC Acadia Owner's Manual - Page 512

Radio [select] (channel) XM, radio [select] (channel) satellite: Instructs the system to go to a specific channel on the XM™ band (if equipped). Radio help: This command instructs the system to assist with radio commands. Auxiliary Commands The following auxiliary commands can be accessed by clearly stating the commands exactly as written. The commands are available when the auxiliary source is available. Aux, Auxiliary: Selects the auxiliary device, when a device is connected. CD Commands The following are CD, MP3, and DVD commands that can be accessed by clearly stating the commands exactly as written. CD, DVD, Disc: Selects a CD, DVD, or disc that is currently loaded. CD, DVD, Disc, [select] track (one, two, three, etc.): Instructs the system to select a specific track number (may not be available during DVD movie play). CD, DVD, Disc select next folder: Selects the next folder on the MP3 or audio DVD. CD, DVD, Disc select previous folder: Selects the previous folder on the MP3 or audio DVD. CD help, DVD help, Disc help: Instructs the system to assist with CD and DVD commands. OnStar® Command OnStar®: Instructs the system to connect to OnStar. The OnStar voice recognition system must be entered. Refer to your OnStar® owner guide for more information. Voice Help Voice help: Provides a description of help commands that can be used. 4-4