If you are an OnStar Member who is having trouble with your service, please give us a call at 1.888.4ONSTAR (1.888.466.7827).
When it comes to frequently asked questions, these topics rise to the top.
BECOME AN ONSTAR MEMBER
A great place to start if you have questions about being a Member or general inquiries.
ONSTAR GUARDIAN APP*
Get key OnStar safety services right on your smartphone. It’s family safety made simple.
From managing your account to setting up automatic payments, we’ve got you covered.
LOOKING FOR MORE HELP?
Visit your GM Account for more information.
Visit the Chevrolet Support Page
Visit the Buick Support Page
Visit the GMC Support Page
Visit the Cadillac Support Page