About Your OnStar Guardian App: Emergency Services

The OnStar® Guardian™ App provides Members with 24/7 access to Emergency Services — they have a specially trained OnStar Advisor ready to help them.

How It Works

With the OnStar Guardian app, a Member can get assistance with medical emergencies or personal safety situations in or out of any vehicle. An OnStar Emergency-Certified Advisor is ready to help 24/7. They can assist Members with situations such as panic attacks, allergic reactions, chest pains and more — even situations where they feel unsafe.

Pushing the red Emergency button in the OnStar Guardian app gives Members priority access to an Emergency-Certified Advisor. These Advisors are specially trained to assist during a medical emergency. They can also contact First Responders, providing them with your precise location. The Advisor will also stay on the line with the Member until help arrives.

OnStar Guardian can also be used when a Member feels they are in personal danger or an unsafe situation.

The Emergency button in OnStar Guardian can also be used to help others in need. If a Member witnesses an event such as a vehicle crash, they can act as a Good Samaritan and request help on another person’s behalf.

If you are in immediate danger, you should always call 911.


Is the OnStar Guardian app still working if I don’t see a notification on the app?

Once you’re logged into the OnStar Guardian app, it will remain active and functional in the background until you log out, even if you close the app. If you don’t see notifications while on your drive, then once the vehicle is in a parked state, you must enable notifications for the Guardian app in the system preferences on your device.

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  • U.S. and Canada only. Available on select Apple and Android devices. Mobile Crash Response services are intended for use in select vehicles only and can connect automatically on Android devices only. Service coverage varies with conditions and location. Service availability, features and functionality vary by device and software version. OnStar Guardian service plan (stand-alone plan, add-on plan or plan that includes the service), cell reception, GPS signal and device data connection required. Terms apply. Device permissions are required for app to operate properly. OnStar links to emergency services. Device and app may not transmit all crash data. Check here for details and limitations. Pricing and availability subject to change. You may cancel at any time by calling 1.888.4ONSTAR (1.888.466.7827).

  • Service is designed to locate compatible smartphones. Functionality varies by mobile device and plan. Data rates may apply. Terms and limitations apply. See onstar.com for details.