Happy to help with this. To ensure your OnStar account is up to date, you will need to add your new payment method to your account. To do so, please follow the steps outlined below.
Log into your GM Account via Buick.com, Cadillac.com, Chevrolet.com, GMC.com or experience.GM.com > Select “Account" > Choose "Payment Methods" and "Manage Payments" > Edit, Delete or Add a Payment Method
From there, you can also purchase a new OnStar Connected Services plan that will best fit your needs. If you would like help purchasing a plan, you are always welcome to push your blue OnStar button, dial 1-(888)-4ONSTAR (1-888-466-7827), or email us at socialmedia@gm.com with subject line as ‘ATTN: OnStar Community/Fleascott5.
