Steering Wheel Controls
Use these controls, if equipped, to make audio adjustments at the steering wheel.
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favorite radio station or next CD, DVD, if equipped, or MP3 track.
Press 
to select the previous favorite radio station or previous CD, DVD, if
equipped, or MP3 track.
(Volume): Press + to increase the volume; press − to decrease
the volume.
(Push to Talk): For vehicles with an OnStar®, Bluetooth®, or
navigation system, press to interact with those systems.
See Bluetooth (Voice Recognition) or Bluetooth (Overview) or Bluetooth (UHP Mexico Only) or Bluetooth (Infotainment Controls), OnStar Overview, or the separate navigation manual for more information.
(End Call/Mute): 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.
SRCE: Press to select an audio source. For vehicles with a heated steering wheel, use the infotainment buttons to select an audio source.
See Heated Steering Wheel or Overview (Radio with CD) or Overview (Radio with CD/DVD and MEM) for more information.
See also:
Selecting a Station
Seek Tuning (Radio with CD)
If the radio station is not known:
Briefly press SEEK or SEEK to automatically
search for the next available station. If a station is not found, the radio
switches ...
Grade Braking
The Grade Braking shift modes can be activated by pressing the button on the
end of the shift control lever. While in Range Selection Mode, Grade Braking is
deactivated allowing the driver to sele ...
Exterior Lamps Off
Reminder
A warning chime will sound if the
exterior lamp control is left on in
either the headlamp or parking lamp
position and the driver door is
opened with the ignition off. ...