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Customer ServiceONSTAR ONLINE CUSTOMER SERVICE: Quick Answers — Just a Click Away
Getting Started
New to OnStar? Get familiar with the basics and find vehicles equipped with OnStar.
Hands-Free Calling
Get the most out of one of OnStar's most unique, voice-activated features.
OnStar Vehicle Diagnostics
Learn about this must-have diagnostic service, included with your subscription.
Turn-by-Turn Navigation
Find out if your vehicle is equipped, and see how this innovative new service works.
Analog-to-Digital Transition
Learn how this industry-wide change might affect certain OnStar-equipped vehicles.
Payment Options
Get tips on payment options and the best way to keep your service active.
Plans & Services
View the comprehensive range of services included in each OnStar subscription plan.
Contact Us
Still haven't found what you're looking for? Email us, push your blue OnStar button, or call us at 1.888.4.ONSTAR (1.888.466.7827) to speak to an Advisor.
Request Product Information
Already an OnStar subscriber or want to know more about OnStar? Information about OnStar’s products, how to use OnStar’s services and other subscriber specific materials available by download or mail.
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