I have multiple vehicles on my OnStar account; can I use OnStar eNav on all of them?
You can use OnStar eNav on all vehicles that have an OnStar account. To use OnStar eNav, the vehicle will need an active Directions & Connection Plan and must be Turn-by-Turn Navigation-capable. The downloaded directions are automatically sent to all eligible vehicles on your account (up to a total of five vehicles). When you log in to send destinations to your vehicles, you will be prompted to upgrade the service level for any vehicle that does not have a Directions & Connections Plan. If you do not receive this prompt, log in again and you should see the prompt.