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2G Network Sunset FAQ
  • As cellular carriers transition to 4G or 5G connectivity, vehicles using a 2G connection will lose OnStar service. In the U.S., most major network providers will complete the transition in December 2022. After the transition, 2G network connectivity will no longer be provided. The decision to sunset these networks was made by the wireless network providers and the need to upgrade to newer technology.

    Certain GM vehicles on the road today currently leverage the 2G network for OnStar connectivity. Once the 2G network sunsets, the three-button interface in your vehicle will be deactivated.

  • In the U.S. and Canada, certain 2015 model year and older GM vehicles will be affected when 2G networks are upgraded. This also may include former GM brands, such as Pontiac, Saturn and HUMMER.

    Click here to see if your vehicle is impacted.

  • No. Once the 2G network sunsets, the three-button interface in your vehicle will be deactivated. GM will notify customers when a solution is available.

  • Our active Members can still use key services by calling an OnStar Advisor at 1.888.4ONSTAR. Save our number in your contact list to reach an Advisor at any time and to request services like Roadside Assistance, Crisis Assist or Emergency Services. And now, no matter where you are, you can access these services, along with Location Status and Mobile Crash Response, by downloading the OnStar Guardian® app. You can even share the Guardian app with up to 7 loved ones — giving the whole family a little peace of mind.

  • The Guardian app provides key OnStar safety services right on your smartphone, including:

    • Mobile Crash Response
    • Roadside Assistance
    • Emergency Services, including 24/7 access to OnStar Emergency-Certified Advisors


    The app also lets you invite up to seven loved ones to the “My Family” group. Everyone gets the safety services within the app as well as Location Status, which includes:

    • Viewing one another on a live map
    • Real-time location updates
    • Ability to share location
    • Cellphone battery life status
  • The OnStar Guardian app is included in the OnStar Safety & Security plan. Members can download the Guardian app from the App Store®*87 or on Google Play.™*59 After the 2G sunset, all Safety & Security plans will be migrated by January 2023 to the Guardian standalone plan, which is $15 a month.

    Download the OnStar Guardian app from the App Store or Google Play today.

  • You can learn more about the OnStar Guardian app here.