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Contact us
Call us, write us, chat with us

There are plenty of ways to get ahold of us — find the way that best suits you.

  • Phone
  • Mail
    OnStar Member Services
    P.O. Box 1027
    Warren, MI 48090-1027
  • TTY for hearing/speech impaired
  • Payments
    Dept #77246
    OnStar Service Plan Center
    P.O. Box 77000
    Detroit, MI 48277-0246
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The OnStar Community is a place for Members to get tips, tricks and troubleshooting advice from other Member and Advisors on all things OnStar and Connected Services.

Looking for help?

Check out our support pages for frequently asked questions on a variety of topics.

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