How to Find an OnStar Phone Number
1. First of all you need to get in your vehicle.
2. The “Phone” button or white dot on your OnStar system is to be pressed.
3. When the OnStar system says “OnStar” Ready, say “My Number.” Your phone number will be repeated back to you by the OnStar system.
For in-vehicle security protection, vehicle navigational systems and hands-free calling, OnStar is very well known. Currently the countries in which OnStar is offering its services are United States, Canada and China. Its Hands-Free Calling is built-in voice-activated call-system vehicle hardware. You can send and receive “hands-free” phone call from your vehicle, this is what Hands-Free calling allows you to do. By using the vehicle hardware you can find your OnStar phone number by using vehicle hardware.