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:
Vehicle Identification Number (VIN)
This legal identifier is in the front corner of the instrument panel, on the
left side of the vehicle. It can be seen through the windshield from outside.
The VIN also appears on the Vehicle Cer ...
Reporting Safety Defects to General Motors
In addition to notifying NHTSA (or Transport Canada) in a situation like this,
notify General Motors.
Call 1-800-458-8006, or write:
Cadillac Customer Assistance Center
Cadillac Motor Car Divisio ...
Express-Down/Up Windows
Windows that have the express—down/up feature allow the windows to be
lowered and raised fully without holding the window switch. Press the window
switch fully and release it to activate the express ...