2008 GMC Acadia Owner's Manual - Page 270

Audio Steering Wheel Controls Vehicles with audio steering wheel controls could differ depending on your vehicle's options. Some audio controls can be adjusted at the steering wheel. They include the following: If your vehicle has the navigation system, press and hold this button for longer than one second to initiate voice recognition. See "Voice Recognition" in the Navigation System manual for more information. If your vehicle has OnStar®, press and hold this button for longer than one second to interact with the OnStar® system. If your vehicle also has the navigation system, press and hold this button for longer than one second to initiate voice recognition and say "OnStar" to enter OnStar® mode. See the OnStar® System on page 2-47 in this manual for more information. SRCE (Source): Press this button to switch between the radio (AM, FM), XM™ (if equipped), CD, and if your vehicle has these features, DVD, front auxiliary, and rear auxiliary. xw (Next/Previous): Press the down or up arrow to go to the next or to the previous radio station stored as a favorite. When a CD/DVD is playing, press either arrow to go to the next or previous track or chapter. + e − e (Volume): Press the plus or minus volume button to increase or to decrease the radio volume. g (Mute/Voice Recognition): Press and release this button to silence the vehicle speakers only. The audio of the wireless and wired headphones, if your vehicle has these features, does not mute. Press and release this button again, to turn the sound on. ¨(Seek): Press the seek arrow to go to the next radio station while in AM, FM, or XM™ (if equipped). Press the seek arrow to go to the next track or chapter while sourced to the CD or DVD slot. 3-128