The Guardian app provides key OnStar safety services right on your smartphone, including:
- Mobile Crash Response for any vehicle or motorcycle
- Roadside Assistance for any vehicle or motorcycle
- Emergency Services, including 24/7 access to OnStar Emergency 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
By using the sensors in your smartphone, including the accelerometer, the app can detect when you are in a moving vehicle or on a motorcycle. When a crash is detected on an Android device, the app can automatically connect you with an OnStar Emergency Advisor who can contact First Responders. When a crash is detected on an Apple® device, the app alerts an OnStar Emergency Advisor, who will then call your smartphone, requiring someone in the vehicle to answer the call.
Enabling location permissions within the app allows an OnStar Advisor to identify your smartphone’s location and contact First Responders for help, even if you can't ask for it.
Now anyone with a service plan can download and use the OnStar Guardian app and get key OnStar services in their vehicle. You can download the app on the App Store®* or from Google Play™*.
Currently, the app services are available in the U.S. and Canada and only on select Apple and Android devices. OnStar Guardian app service coverage is limited and may vary with conditions and location. Additionally, service availability, app features and functionality can vary by device and software version.
We maintain reasonable and adequate technical, administrative, and physical security and confidentiality measures designed to help protect your information from unauthorized access or acquisition. In an active emergency situation, OnStar Emergency Advisors may share your information, pursuant to the OnStar Guardian App Privacy Statement. Your information will only be shared with emergency service providers — such as law enforcement, roadside assistance providers and ambulance providers — in order to deliver related services. Consult the OnStar Guardian App Privacy Statement for more information.
Yes. You can use your myChevrolet, myBuick, myGMC or myCadillac mobile app login. If you have an existing GM Account, you can use your login for the Guardian app as well. It is not necessary to create a new GM account for the Guardian app.
Simply download the app on the App Store®* or from Google Play™*. Follow the on-screen prompts to set up your OnStar Guardian service.
The app is currently compatible with select Apple and Android devices (Android 7.0+ and above and Apple iOS 14.0 and above as of March 2023). The Guardian app requires devices to have GPS, accelerometer, gravity sensor, and gyroscope.
You may cancel your OnStar Guardian services at any time. You can cancel in app or by calling 1.888.466.7827. Members with a Chevrolet, Buick, GMC or Cadillac vehicle can also push their blue OnStar button to speak to an Advisor. Deleting the app from your smartphone alone will not cancel your service.
All OnStar Safety & Security Members now get the Guardian app included in their plan. The OnStar Guardian app is in addition to and an extension of those services and can be shared with up to seven of your loved ones. You can also enjoy OnStar Guardian as a stand-alone service if you don’t currently have OnStar safety services in your vehicle.
No. The Guardian app needs a cellular connection in order to connect with OnStar. Should you encounter an emergency requiring law enforcement, EMS, fire or other emergency services, always call 911 first.
The app provides a smartphone-based Mobile Crash Response service when a crash is detected. In order for an OnStar Emergency Advisor to properly assist, you will need to allow certain app and device permissions, including allowing access to the following features:
- Location: These permissions must always be enabled because your smartphone’s location is used to determine when you begin driving and when a crash is detected. Location permissions allow an OnStar Advisor to identify your smartphone’s location and contact First Responders for help.
- Microphone: Once a crash is detected and the app successfully calls an OnStar Advisor, the Microphone permissions allow you to speak to the Advisor, who can contact First Responders to get the help you need. The app is not using the microphone for any other purpose and is not “listening” at all times.
- Motion and Fitness/Physical Activity: These permissions allow the Guardian app to utilize your smartphone's sensors to help detect a crash.
- Notifications: These permissions allow you to receive important app alerts and updates (Apple only).
- Call Management: These permissions allow you to answer an incoming call without the connected OnStar Guardian app call ending (Android only).
- Background App Refresh: This will ensure that the app will run in the background to detect a drive and crash event.
Apple devices: There are no known limitations at this time. Android devices: The Guardian app may not operate properly if the following modes are detected and enabled:
- Power save
- Background restrictions
- Google Play settings error
- Location settings error
- Wi-Fi scanning disabled
- Battery Optimization
This list is not exhaustive and other app or smartphone permissions or settings may impact app performance. Additionally, some Android-based smartphones may not be supported, including Google Pixel devices. See the OnStar Guardian app User Terms for limitations. Device permissions are required for the app to operate properly.
The User Terms and Privacy Statement are available to view from the following places:
- Within the Settings tab of the OnStar Guardian app
- OnStar Guardian app page on App Store and Google Play
No. It is a standalone app that you can use while traveling in any vehicle. You can connect your smartphone to your vehicle's speakers via Bluetooth®, but it is not required. Full Bluetooth feature functionality may vary depending on your device, model and software version.
If you uninstalled or deleted the app, you can simply download the app again on the App Store or on Google Play and sign back in to the app. If you need assistance, tap the “Need Help Signing In?” link. If you are a Member with a Chevrolet, Buick, GMC or Cadillac, you can also use your vehicle mobile app or GM Account login.
Mobile Crash Response uses smartphone sensors designed to determine if the smartphone is in a moving vehicle before it begins scanning to detect a crash event. The OnStar Guardian app then alerts an OnStar Emergency Advisor, who will call your phone and contact First Responders. Automatic Crash Response is a service that is embedded into your vehicle, utilizing built-in sensors designed to detect a crash and alert an OnStar Emergency Advisor. The in-vehicle Automatic Crash Response is available in any properly-equipped GM vehicle, while the OnStar Guardian app extends this service to any vehicle you drive, ride in or share. Mobile Crash Response services are intended for use in vehicles and on motorcycles only and can connect to an Advisor automatically on Android devices only. Service availability, features and functionality may vary by device and software.
Once you’re logged into the Guardian app, it will remain active and functional until you log out, even if you close the app or when it’s running in the background. If you don't see notifications during your drive, you must enable notifications for the Guardian app in the system preferences on your device once the vehicle is parked. If this action doesn’t resolve your concerns, please contact OnStar Technical Support at 1.888.466.7827. Please note that several device and app permissions are necessary for the Guardian app to properly function.
No, the OnStar Guardian app is focused on giving users access to key OnStar safety services through your smartphone in any vehicle and virtually anywhere you or your loved ones go.
The Guardian app is designed to use your smartphone’s sensors to detect a crash and alert an OnStar Emergency Advisor. The Advisor will call your phone and contact First Responders and provide them with your location. For Android users, the app can automatically connect to an Advisor even if you can't reach your phone.
If you have an emergency and have not been connected to an OnStar Emergency Advisor, you should always call 911 directly. If you are unsure how to proceed, you can connect to OnStar using the red Emergency button in the OnStar Guardian app.
Dialing 911 while you’re connected to an OnStar Advisor via the Guardian app may result in two calls being placed to 911 at the same time. This could cause confusion or a delayed response.
When a crash is detected, you will receive an automatic OnStar Guardian app notification on your smartphone. For Android devices, the notification will read: Connecting to an OnStar Emergency Advisor. A crash has been detected. For Apple devices, the notification will read: Crash detected. OnStar Emergency has been alerted. Additionally, on Android devices, you will hear an audible prompt notifying you that you are being automatically connected to an OnStar Emergency Advisor. On Apple devices, you will receive a call from the OnStar Advisor that you must answer.
With Roadside Assistance*, you and up to seven people in your “My Family” group can get help for any vehicle — including motorcycles. Services include assistance when you need a jump start, have a flat tire, are locked out or run out of gas. You can also request a tow if needed. Towing services can be used four times per year then additional charges apply.
Yes. If you are an OnStar Member, you and any "My Family" member can get help using the Guardian app in any vehicle in which you are traveling, including motorcycles.
No. Members of “My Family” must have the app on their smartphone in order to get Roadside Assistance.
With the OnStar Guardian app, you and up to seven people in your “My Family” group* can request Roadside Assistance while you’re traveling in any vehicle — including motorcycles.
Roadside Assistance provided as part of the OnStar Safety & Security Plan is for a specific vehicle.
You can request roadside assistance right in the OnStar Guardian™ app, simply by tapping the roadside icon and following the convenient on-screen prompts. Once service is requested, OnStar Guardian can even let you know how close a roadside technician is to your location.
Our OnStar Emergency Advisors* are always ready to help Members and provide a human connection so they are never alone in a time of need. By pushing the red Emergency button, Members are linked to live people who are professionally trained and certified in emergency call handling, similar to 911 personnel. During an emergency, an Emergency Advisor will notify First Responders to request assistance be sent to the location of the emergency and can utilize medical, police and fire protocols provided by the International Academies of Emergency Dispatch® (IAED) Emergency Priority Dispatch System before help arrives.
The IAED system provides a structured, standardized set of procedures that reduce complexity and risk, allowing OnStar Emergency Advisors to work confidently and, when necessary, provide critical support amid the chaos of an emergency situation prior to First Responders arriving on scene. With over 70,000 911 dispatchers in 50 countries, these protocols are the most studied and proven through the validation of millions of emergency calls.
Using the red Emergency button within the Guardian app, you can connect to an OnStar Emergency Advisor for assistance for yourself or on someone else’s behalf. Should you encounter an emergency requiring law enforcement, EMS, fire or other emergency services, always call 911 first.
You can always push the blue OnStar button if you need help. An OnStar Advisor can assess your request and get you the right help. You can also push the blue OnStar button if you have questions about your account or the app. For an emergency situation, such as medical, push the red Emergency button.
Within the OnStar Guardian app, you can view and share device location information with members of “My Family.” Each member of “My Family” is visible by all other members of “My Family” on a map, and their location updates are visible. Additionally, in an emergency, this feature allows an OnStar Emergency Advisor to identify your smartphone’s location and contact First Responders, even if you can’t ask for it.
Location accuracy is dependent on a number of factors, including your smartphone’s sensors, device permissions and operating system; your cellular service and connection to Wi-Fi; and overall interference from nearby buildings.
The only time an OnStar Advisor accesses your smartphone location and information from you or members of "My Family" is during an active OnStar Guardian app call. Your smartphone’s location information is shared with members of “My Family” via the Guardian app. Your smartphone’s location information is only shared with third parties (e.g., 911 dispatch centres, First Responders) when they are contacted to respond on scene. OnStar takes protecting information very seriously. We maintain reasonable and adequate technical, administrative, and physical security and confidentiality measures designed to help protect your information from unauthorized access or acquisition. Consult the OnStar Guardian App Privacy Statement for more information.
Yes. OnStar uses your smartphone's location to identify the correct 911 dispatch centre. First Responders are then sent to this location during an emergency.
If you don’t want other members of “My Family” to see your smartphone’s location, you can turn off “Location Sharing” in the Guardian app’s settings. By doing this, OnStar Advisors can still identify your smartphone’s location and contact First Responders, but members of “My Family” would not see it. However, you should ensure Location Services on your smartphone’s device settings are set to “Always Allow” for the Guardian app. If these are not enabled, the Guardian app will not function properly.
You can use the OnStar Guardian app to invite up to seven people to join and be a part of your “My Family” group in the app. Each member of “My Family” receives all the app benefits at no cost to them, including Mobile Crash Response, Roadside Assistance, Location Status and Emergency Services.
To invite someone to “My Family,” navigate to the “My Family” section of the app menu and select the option to add a new member. A unique code is generated for your group that can be shared using your operating system’s sharing feature, such as sending through an SMS or via email. The same code can be shared with up to all seven people in the group, but it is only valid for 48 hours. A new code is generated if you select the sharing option at a later time.
Once they've downloaded and installed the app, they'll hit the "GET STARTED" button. They'll be prompted to enter their email address. Then they will enter their name and password, select their country and accept terms and privacy agreements. Once they have entered their unique invitation code, they’ll verify their email and the family they are joining. Finally, they'll need to go through a mobile phone verification and grant permissions for the app to use certain phone functions.
Yes. Each member of “My Family” must download the app to their individual smartphone in order to enjoy the Guardian app’s benefits and services. Each person invited to “My Family” must create their own unique username and password for the app on their compatible smartphone. Members of “My Family” should not share credentials.
The OnStar Member will have the designation of “Family Manager,” which provides the administrative ability to add or delete people from “My Family.” This designation can be extended by the OnStar Member to any or all other members of “My Family.” However, only the OnStar Member will have rights to purchase, amend or cancel an OnStar plan.
You may leave a “My Family” group at any time by clicking on the three-dot display next to your name on the “My Family” screen and selecting the option to leave the group.