10-08-2021 09:57 AM
I would like to cancel my ONSTAR service
10-08-2021 08:20 PM
Currently the only way to cancel your OnStar service is by speaking with an Advisor. This can be done by calling 1-(888)-4ONSTAR (1-888-466-7827), pushing your blue OnStar button, or by emailing socialmedia@gm.com.
