Why does my OnStar keep Coming On? [7 Reasons & Solution]

Why does my OnStar keep Coming On

OnStar has undoubtedly become a valued part of many drivers’ lives by offering remote access and emergency services. Still, it can sometimes be annoying when we are suddenly met with unexpected machine greetings, voices, and notifications.

While the intent is genuine, hearing the same voices repeatedly can cause frustration.

So Why is OnStar connecting automatically without having an active subscription?

OnStar keeps coming on because OnStar collects some of your traveling data to provide more accurate data and services and instruct your time by time. Because You have signed an agreement at the time of your vehicle purchase and have given the limited services right to the company.

If you are annoyed by OnStar auto connecting and these machine greetings and pop-ups, this article is for you.

Here we will discuss all the possible reasons for OnStar coming on constantly and how you can disable it.

Why does my OnStar keep Coming On?

OnStar has a built-in artificial intelligence system that records some of your traveling experience data and connects automatically to provide better and limited services even without an active subscription.

The common reasons for OnStar auto activating and coming on are:

  1. Your vehicle is not connected to the OnStar service properly.
  2. The system needs to be updated; trying to alert you of this.
  3. The OnStar system may malfunction and need to be serviced or replaced.
  4. You may have a false alarm caused by a low battery issue or accidental activation of the OnStar button on your vehicle’s dashboard.
  5. You may have requested a service on your gm vehicle such as roadside assistance or emergency services, and the system is trying to alert you.
  6. You may have inadvertently activated other features on your vehicle that requires the use of OnStar
  7. Your vehicle’s account may need updating or renewing.

How do you Keep OnStar from connecting Automatically?

If you would like to keep OnStar from connecting automatically, there are a few steps you can take.

  • Contact the OnStar advisor and discuss your issue with them.
  • If this doesn’t work, you will need to disconnect your OnStar box from your car. However, note that on disabling the system, you will no longer be able to get the OnStar services.
  • Make sure that your OnStar subscription is disabled or inactive. Contact an OnStar service representative to disable it if it’s still active.
  • Locate the vehicle’s OBD-II port, which is usually located beneath the driver’s side dashboard, and disconnect it for the module.
  • This port is generally used for connecting to OnStar and other diagnostic equipment.

Can OnStar be activated without being in the car?

Yes, with the OnStar guardian app, you can use the remote services without being in the car. You can remotely lock, unlock, remote start and locate your car with lights and horn with your app from outside your vehicle.

How do I turn off OnStar notifications?

You can turn off OnStar notifications by following these steps:

  1. Access your OnStar account online or through the OnStar mobile app.
  2. Select “system preferences” from the main menu and select “Notifications.”
  3. Uncheck the boxes to disable notifications or select the disabled option.
  4. Click “Save” to confirm the changes.

You can contact the OnStar advisor if you receive unnecessary pop-up notifications or voices. The representative will guide you through disabling these.

What happens if you unplug OnStar?

If you unplug the OnStar unit, all services that rely on cellular or Wi-Fi connectivity will be stopped. Includes Emergency Services, Automatic Crash Response, Roadside Assistance, and other remote access features.

You will also lose the ability to connect your vehicle to the myChevrolet mobile app.

Any feature that uses GPS will be unavailable, such as the Vehicle Diagnostics Report, the OnStar Navigation app, stolen vehicle assistance, and location services.

If you want to re-establish service after unplugging the system, you must contact an OnStar Advisor.

They can help you reconnect your vehicle to the network to restore all applicable services.

Why is my OnStar not working?

  • Your OnStar subscription has expired or is inactive. To restore your service, contact an OnStar representative.
  • Your vehicle’s antenna may need to be adjusted or replaced if you are experiencing poor or no signal.
  • Check your vehicle’s fuse box to ensure the OnStar fuse is not blown.
  • Confirm that you have an active data plan associated with your account and that it has not expired.
  • If you are within range of a cellular tower, try resetting the device.
  • If you are using an aftermarket stereo, ensure it is compatible with the OnStar system.
  • Make sure your vehicle’s battery has enough power to run the OnStar system and is connected properly.
  • Ensure that all cables associated with the OnStar device are securely connected and that the device is correctly installed in your vehicle.
  • If you have recently moved, you may need to adjust your account settings to reflect your new location.
  • Contact OnStar call center if none of these steps resolve your issue.


How do I turn off OnStar without calling?

You can turn off your OnStar without calling the advisor by disconnecting the OnStar module from your vehicle or disconnecting all the three connectors to the module.

How to reset the OnStar module?

You can reset the OnStar module by calling the OnStar helpline. The representative will guide you on how to reset your system.

Can someone track you with OnStar?

OnStar authorities and family member you have given access in guardian app can track you. OnStar can track your location when you are connected to the service.

It uses OnStar GPS satellite technology for current location which is integrated in the vehicle to locate it on a virtual map.

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