How to Change my OneStar Plan
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!