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:
Manual Transmission
Fluid
It is not necessary to check the
manual transmission fluid level.
A transmission fluid leak is the only
reason for fluid loss. If a leak
occurs, take the vehicle to a dealer
for service. Have ...
Battery Replacement
Replace the battery if the REPLACE
BATTERY IN REMOTE KEY
message displays in the DIC.
See “Replace Battery In Remote
Key” under Key and Lock Messages for additional
information.
Notice: When ...
Styling
The first-generation CTS set Cadillac on its current styling direction with
its creased, angular shape, but the design philosophy really hit its stride with
this second-generation car. Sharp edges ...