OnStar Services

See also:

Engine Coolant 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 ...

Turning the System On and Off
The URPA system can be turned on and off using the rear park aid disable button located next to the radio. The indicator light comes on when the system is disabled and turns off when the system is ...

Shutting the Engine Off After a Remote Start
To shut off the engine: ○ Press until the parking lamps turn off. ○ Turn on the hazard warning flashers. ○ Insert the key and turn it to ON/ RUN and then back to LOCK/OFF. ...