Onstar.com
The website provides access to account information, manages the OnStar subscription, and allows viewing of videos of each service.
Get subscription plan pricing and sign up for OnStar Vehicle Diagnostics. Click on the “My Account” tab on the home page.
See also:
Express-Down Window
This feature is on the front windows. Press the switch to
the second position to activate the express-down feature.
To stop the window as it is lowering, press down briefly
on the switch again. ...
Climate Controls
The heating, cooling, and ventilation for the vehicle can be controlled with these systems.
A. Air Conditioning
B. Driver and Passenger
Temperature Controls
C. Heated Seats
D. Air Deliv ...
Engine Overheating
The vehicle has several indicators to warn of engine overheating.
You will find an engine coolant temperature gauge on the vehicle's instrument panel cluster. See Engine Coolant Temperature Gauge
. ...