OnStar is an in-vehicle safety and security system designed to help protect you and your family and provide peace of mind on the road. And now with the OnStar Guardian™ app, you can get key OnStar safety services in and out of any vehicle.
OnStar is available in Chevrolet, Buick, GMC and Cadillac vehicles. Some services may not be available in all vehicles.
Your vehicle purchase comes with a 1-month trial of OnStar One
If you recently purchased a 2024 or 2025 vehicle, please log in to your account to view the latest trial information and features impacting your vehicle purchase, as many models include extended trials of some OnStar features.
OnStar-equipped pre-owned 2015 and newer vehicles can get a trial of OnStar One which includes OnStar Protect and OnStar Connect Plus for up to 3 months.
If you recently purchased a 2024 or 2025 vehicle, please log in to your account to view the latest trial information and features impacting your vehicle purchase, as many models include extended trials of some OnStar features.
OnStar plans start at $9.99 a month. Plus any applicable taxes & fees. Explore our plans here.
You can manage your account and connected services online by visiting your Chevrolet account, pushing your blue OnStar button in your vehicle and speaking with an Advisor, or calling 1.888.4ONSTAR (1.888.466.7827).
Push your blue OnStar button in your vehicle to activate, change or renew services anytime. If you are enrolled in a trial plan, your paid OnStar service plan will be added to the time remaining in the trial. You can also manage your account and active connected services online by visiting your Chevrolet account or calling 1.888.4ONSTAR (1.888.466.7827).
If at any time you wish to cancel your OnStar service, push your blue OnStar button to speak with an Advisor or call 1.888.4ONSTAR (1.888.466.7827). If you let your service plan expire or choose to cancel it, your OnStar system will be deactivated. All services — including Automatic Crash Response and Emergency Services — will be shut off. Your vehicle won’t be able to connect with us for help, even in a crash.
You may transfer your OnStar service plan if:
If you still own the vehicle listed on your service plan, the plan cannot be switched to a different driver. Any service plan included with your vehicle purchase remains with the vehicle if it is sold or traded in with an active OnStar trial.
Starting at $34.99/month, OnStar One includes:
You can visit your account to learn more about OnStar services.