Reactivation for Subsequent Owners
Push 
and follow the prompts to
speak to an Advisor as soon as
possible after acquiring the vehicle.
The Advisor will update vehicle records and will explain the OnStar service offers and options available.
See also:
Call Waiting
Call waiting must be supported on the cell phone and enabled by the wireless
service carrier.
- Press to answer an incoming call when another call is active. The original call
is placed on hold.
...
California Proposition 65 Warning
Most motor vehicles, including this one, contain and/or emit chemicals known
to the State of California to cause cancer and birth defects or other
reproductive harm. Engine exhaust, many parts and s ...
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 ...