The 2G network sunset has impacted some GM vehicles
The 2G network that your vehicle once used to connect to OnStar was deactivated in December 2022. While the OnStar buttons in your vehicle are disabled, you can still use key services by calling an OnStar Advisor at 1.888.4ONSTAR (1.888.466.7827) or by downloading the OnStar Guardian® app.* 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.*