Although you can simply unsubscribe from the service, the OnStar hardware continues to track how you use your vehicle, even if you remove its fuse. The only way to completely eliminate OnStar is to physically disconnect the module from your vehicle.

Can you disable OnStar tracking?

You can discontinue the service at any time, but even after the service is cancelled, the Onstar GPS still continues to track your current location. ... To maintain your privacy, you must disable the device.

Is it illegal to disable OnStar?

You CAN disable the Onstar system if you want, the Dealer CANNOT without having the customer sign a release form to relieve GM\Onstar of any legal issues, should you end up in a ditch, unconscious, and cannot reach your cell phone.