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.

New vehicle purchases include 1 month of OnStar Safety & Security coverage, a 1-month trial of GMC Connected Services and 1 month of unlimited data for the available in-vehicle Wi-Fi Hotspot. You will also receive up to 10 years of standard connectivity with Connected Access, which enables services such as Vehicle Diagnostics, Dealer Maintenance Notification and GMC Smart Driver.

If you select a monthly plan within 30 days of vehicle delivery, you will also receive the first 2 months of that plan at no additional charge. You can visit your GMC account to learn more about OnStar plans.

If you recently purchased a new 2023 or 2024 model year vehicle, please login to your account to view the latest trial information impacting your vehicle, as many models include extended trials of some OnStar features and services.

OnStar-equipped pre-owned vehicles model year 2015 or newer include 1 month of OnStar Safety & Security coverage, a 1-month trial of Connected Services, and 3 GB or 1 month of in-vehicle data (whichever comes first). You will also receive up to 5 years of Connected Access, which enables services such as Vehicle Diagnostics, Dealer Maintenance Notification and Smart Driver.

OnStar-equipped pre-owned vehicles model year 2011 to 2014 include 1 month of OnStar Safety & Security coverage, a 1-month trial of Connected Services and 1 year of Connected Access, which enables services such as Vehicle Diagnostics and Dealer Maintenance Notification. Please note that all services may not be available. Check with your Dealer for details.

If you recently purchased a 2023 or 2024 model year vehicle, please login to your account to view the latest trial information impacting your vehicle, as many models include extended trials of some OnStar features and services.

The OnStar Safety & Security Plan is available for $29.99 a month. Plus any applicable taxes & fees. 

You can manage your account and connected services online by visiting your GMC 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 GMC 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:

• You have an active, customer-paid OnStar service plan and account.
• The primary driver does not change.
• The new vehicle is equipped with OnStar hardware.

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.

The OnStar Safety & Security Plan includes these services:

• Automatic Crash Response with Injury Severity Prediction
• Emergency Services, including a priority connection to an OnStar Emergency-Certified Advisor
• Crisis Assist
• Stolen Vehicle Assistance, including Remote Ignition Block,™ Stolen Vehicle Slowdown^® (if capable) and Theft Alarm Notification
• Turn-by-Turn Navigation with Destination Download (if available)
• Roadside Assistance
• OnStar Guardian app

You can visit the Plans page or your GMC account to learn more about OnStar services.