Some audio controls can be adjusted at the steering wheel.

(Push to Talk): For vehicles with a Bluetooth, OnStar, or navigation system, press to interact with those systems. See Bluetooth (Infotainment Controls)  or Bluetooth (Overview)  or Bluetooth (Voice Recognition) , OnStar Overview , or the separate navigation manual for more information.

(Mute/End Call): Press to silence the vehicle speakers only. Press again to turn the sound on. For vehicles with OnStar or Bluetooth systems, press to reject an incoming call, or end a current call.

(Source): Press to select an audio source.

Move the thumbwheel up or down to select the next or previous favorite radio station, CD, or MP3 track.

(Volume): Press + to increase the volume. Press − to decrease the volume.