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:
Transfer Case
If the vehicle is equipped with All-Wheel Drive, be sure to perform the lubricant
checks described in this section. ...
Sensors
The solar sensor, located on top of the instrument panel near the
windshield, monitors the solar heat.
The climate control system uses the sensor information to adjust the
temperature, fan speed, ...
Rainsense™
For vehicles with Rainsense, a sensor located near the top center of the
windshield detects the amount of water on the windshield and automatically
controls the frequency of the windshield wiper.
...