Support. It’s what we do.

Your OnStar customer service team is here for you. Always.

Whether you want help with your OnStar account, OnStar login information, OnStar Wi-Fi or just have questions about your OnStar services, we’re here for you.

Let’s connect.

However you feel like reaching out, we've got you.

Community

Check out how other Members are using OnStar. Ask questions. Search topics. Get insights. Make connections.

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Chat

Online. Instant. Efficient. Great choice. Our Advisors are ready when you are.

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Contact us

Want to call us? Write us? We’re always available.

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Use My GM Rewards to experience better drives

Unlock a world of appreciation that’s focused on you and your vehicle. Earn and redeem points on almost everything you do with GM — including using your points toward select OnStar plans.* My GM Rewards Cardmembers earn 7 points per $1 spent on GM purchases and 4 points per $1 spent everywhere else.*

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What is the Wi-Fi Hotspot?

Prepare to be spoiled. Your car’s built-in Wi-Fi^® Hotspot* turns it into a mobile hub with its own Wi-Fi that you and your passengers can connect to. And not just any connection — it’s a super-strong signal with great bandwidth — better than what you’d get from your smartphone. Plus, it’s powered by your car, so you won’t run down your phone’s battery. Your car has to be on or in accessory mode for the hotspot to work.

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What is in My Account?

Your GM Account is where you can see, manage and change your OnStar plan, and you’ll find plans and pricing info tailored to you. You can do things like add to your OnStar plan, switch to a different plan, find your vehicle mobile app information, see diagnostic information* and get customer support. You can even schedule and manage maintenance and service for your car. And if you’ve misplaced your Owner’s Manual, no worries, you’ll find an online version, plus some extra how-to info. To log in, you can use your GM Account, your OnStar account, your vehicle mobile app or your My GM Rewards.

Go to Your GM Account

How do I set up my account online?

If you’re already an OnStar Member, you can do it through your GM Account — or you can tie your OnStar service plan to your existing account. You’ll see complete instructions in your GM Account.

Go to Your GM Account

How can I speak with an OnStar Advisor?

Anytime, day or night, we’re here for you. You can push your blue OnStar button, or you can call us toll-free at 1.888.4ONSTAR (1.888.466.7827). If you’re deaf, hard of hearing or speech impaired, we have a toll-free TTY number for you: 1.877.248.2080.

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Use Our TTY Number

What is Crisis Assist?

It’s help in just about any crisis situation — severe weather conditions, wildfires, etc. Our Advisors are ready to give you the emergency help you need, like finding a route. We can also get in touch with your family members.

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What is the OnStar Guardian® app?

Think of it as OnStar everywhere you go, not just in your car. It’s an app on your phone, so you’ve always got OnStar when and where you need us. If you’re on a walk, on a bike, on a motorcycle in someone else’s car — even at home or at work. Even better, you can share the app with up to seven loved ones.* So they’ll have OnStar wherever they need us too.

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