Plans and Services
Instructions for updating and changing your plans and services along with helpful tips if you’re having trouble.
How to Update Your SiriusXM Information
Learn how to manage and add a vehicle to your SiriusXM® account, and what to do if SiriusXM is not active or if you’re not getting your channels.
Troubleshooting Information on Plans and Services
Helpful tips if you’re having trouble signing in to My Account, signing in to your GM Financial account or having trouble finding information.
How to Change Your OnStar Plan
Learn how to activate, renew, change and cancel your plan.
