The infotainment system is operated by using the pushbuttons, multifunction knobs, and menus shown on the display.
Turning the System On or Off
/VOL (Power/Volume): Press to turn
the radio on and off.
Automatic Switch-Off
If the infotainment system has been turned on after the ignition is turned off, the system will turn off automatically after 10 minutes.
Volume Control

/VOL (Power/Volume): Turn to adjust
the volume.
(Phone/Mute): Press to activate OnStar.
See OnStar Overview on page 14-1.
Press and hold to mute the infotainment system. Press again or turn the
/VOL knob to cancel mute.
Operation
Menu SystemConnecting a USB Storage Device or iPod/iPhone
To connect a USB storage device, connect the device to the USB port.
To connect an iPod/iPhone, connect one end of the device’s cable to the iPod/iPhone
and the other end to the USB port.
The iPod/iPhone charges while it is connected to the vehicle if the vehicle is
in ACC/ACCESSORY, ON/RUN. S ...
Brakes
Disc brake pads have built-in wear indicators that make a high-pitched warning
sound when the brake pads are worn and new pads are needed.
The sound can come and go or be heard all the time when the vehicle is moving,
except when applying the brake pedal firmly.
Warning
The brake wear warning ...
Battery
The original equipment battery is maintenance free. Do not remove the cap and
do not add fluid.
Refer to the replacement number shown on the original battery label when a new
battery is needed. See Engine Compartment Overview on page 10-7 for battery location.
Warning
WARNING: Battery posts, ...