OnStar
Onstar.com
In this manual: OnStar
~1min read
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.
Test yourself
A quick Cadillac CTS quiz: every answer comes with an explanation and a link to the manual page.
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