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 SystemWheel Alignment and Tire Balance
The tires and wheels were aligned and balanced at the factory to provide the
longest tire life and best overall performance. Adjustments to wheel alignment and
tire balancing are not necessary on a regular basis. Consider an alignment check
if there is unusual tire wear or the vehicle is signi ...
Checking Coolant
The vehicle must be on a level surface when checking the coolant level.
It is normal to see coolant moving in the upper coolant hose return line when
the engine is running.
Check to see if coolant is visible in the coolant surge tank. If the coolant
inside the coolant surge tank is boiling, do ...
If the On Indicator Is Lit for a Child Restraint
If a child restraint has been installed and the on indicator is lit:
Turn the vehicle off.
Remove the child restraint from the vehicle.
Remove any additional items from the seat such as blankets, cushions, seat
covers, seat heaters, or seat massagers.
Reinstall the child restraint follo ...