OnStar®
OnStar OverviewEngine Heater
The engine heater can provide easier starting and better fuel economy during
engine warm-up in cold weather conditions at or below -18°C (0°F). Vehicles with
an engine heater should be plugged in at least four hours before starting.
Turn off the engine.
Open the hood and unwrap the ...
If a Crash Occurs
If there has been an injury, call emergency services for help. Do not leave the
scene of a crash until all matters have been taken care of.
Move the vehicle only if its position puts you in danger, or you are instructed
to move it by a police officer.
Give only the necessary information to pol ...
Radio Controls without Touchscreen
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 tu ...