See also:

Vehicle Identification Number (VIN)
This legal identifier is in the front corner of the instrument panel, on the left side of the vehicle. It can be seen through the windshield from outside. The VIN also appears on the Vehicle C ...

Retrieve My Number
1. Push . System responds: “OnStar ready.”. 2. Say “My Number.” System responds: “Your OnStar Hands-Free Calling number is.” ...

Warranty
OnStar equipment may be warranted as part of the new-vehicle limited warranty. The manufacturer of the vehicle furnishes detailed warranty information. ...