Some audio controls can be adjusted at the steering wheel. They include the following:

+ / - (Next/Previous) : Press and release either the plus or minus button to go to the next or the previous preset radio station. When a CD is playing, press and release either the plus or minus button to go to the next or the previous track. For vehicles with the OnStar® system, press the minus (previous) button to end a Hands-Free call, an OnStar® call, cancel an incoming call, or end the Advisor Playback.

(Volume): Move the thumbwheel up or down to increase or to decrease the volume. Press and release the thumbwheel to mute the system. Press it again to turn the sound back on. If your vehicle has the navigation system, press and hold the thumbwheel for longer than one second to initiate voice recognition. See "Voice Recognition" in the navigation manual for more information. If your vehicle has OnStar®, press and hold the thumbwheel for longer than one second to interact with the OnStar® system. OnStar® voice command does not work unless Personal Calling is activated. To activate OnStar® Personal Calling please refer to the OnStar® Owner's manual. If your vehicle also has the navigation system, press the thumbwheel to initiate voice recognition and say, "OnStar" to enter the OnStar® mode. See OnStar® System in this manual or the navigation manual for more information.

Some audio controls can be adjusted at the steering wheel. They include the following:

+ / - (Next/Previous) : Press and release either the + or - to go to the next or the previous preset radio station. When a CD is playing, press and release either the + or - to go to the next or the previous track. For vehicles with the OnStar® system, press the minus (previous) button to end a Hands-Free call, an OnStar® call, cancel an incoming call, or end the Advisor Playback.

(Volume): Move the thumbwheel up or down to increase or to decrease the volume. Press and release the thumbwheel to mute the system. Press it again to turn the sound back on. If your vehicle is equipped with OnStar®, press and hold the thumbwheel for longer than one second to interact by voice with the OnStar® system. See OnStar® System in this manual for more information.