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How to Change my OneStar Plan

New Contributor

Hi I recently purchased a new Buick 2022 last month and now that my trial period is up in 2 days for OnStar I would like to change my plan from premium to a slightly lesser plan before I am charged for the first month.

I can't seem to find any information on how to do that or how to turn off automatic payments so I don't get charged $50 that I don't want to spend!



If you would like to change your OnStar service plans at any time, you can simply push the blue OnStar button in your vehicle or call 1-(888)-4ONSTAR (1-888-466-7827) and speak with a live Advisor.  Additionally, if you would like to edit, delete, or add a new payment method to your account, please follow the steps outlined below. 

Log into your Account via,,, or > Select “Account overview > Choose "Payments" and "Manage Payments" > Edit, Delete or Add a Payment Method 


If you have any difficulties with this, you can reach us at and we ask that you have your subject line as ‘ATTN: OnStar Community/Rynee18’ so we can reference back to this post.