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When you select a monthly plan within 30 days of activating your 1-month trial, you’ll receive the next 2 months of the plan you select at no additional charge when you associate an approved payment method on file to your account and authorize recurring payments for your service plan. The amount and frequency of each recurring payment are based upon the service(s) and payment intervals(s) you select from the options provided. After the trial expires, OnStar will automatically bill your payment method monthly at then-current standard monthly rates. Plans containing data will be billed every 30 days by AT&T. You may cancel at any time by pushing your blue OnStar button or calling 1.888.466.7827 May not be combined with other offers or retroactively applied. Offer is subject to change.
When you buy a 2015 model year or newer GM vehicle, it comes with an amazing bonus: a complimentary 1-month OnStar One trial. Experience the best in safety, connectivity and entertainment — and when you purchase a plan, you get another two months on us.
Getting started
Activating your complimentary OnStar One trial as easy as opening an app.
Step 1
Download and/or sign into your vehicle app.
Step 2
Add or select your vehicle.
Step 3
Complete your activation from inside your vehicle.
Get the vehicle mobile app
Open your vehicle mobile app or push your blue OnStar button
Connect your vehicle and get up to 3 months of our full suite of One services on us! Plus, receive free Vehicle Diagnostic Alerts
