How To Activate Onstar Without Being In The Car

OnStar is a popular telematics service that provides drivers with a range of features, including remote start, vehicle diagnostics, and emergency assistance. While OnStar activation typically requires the presence of the driver in the vehicle, there are certain circumstances where it may be necessary to activate the service remotely. This article will provide a step-by-step guide on how to activate OnStar without being in the car, as well as address frequently asked questions and provide important disclaimers.

Remote Activation Methods – Through the OnStar Mobile App


  1. Download the OnStar Guardian app from the Apple App Store or Google Play Store.
  2. Create an account or sign in to your existing account.
  3. Select “Activate OnStar” from the menu.
  4. Enter your vehicle’s VIN number and follow the on-screen instructions.

Via the OnStar Website

  1. Visit the OnStar website at
  2. Click on “Activate OnStar” in the top right corner.
  3. Enter your vehicle’s VIN number and follow the on-screen instructions.

By Phone

  1. Call OnStar customer service at 1-888-466-7827.
  2. Provide the representative with your vehicle’s VIN number and personal information.
  3. Follow the instructions provided by the representative.

Additional Information


Not all vehicles are eligible for remote OnStar activation. To determine if your vehicle is eligible, contact OnStar customer service or visit the OnStar website.


There may be a fee associated with remote OnStar activation. The fee varies depending on the activation method and the specific services activated.


Remote OnStar activation may not be available in all areas. Additionally, certain features, such as remote start, may require additional hardware or software installation.


Q: Why would I need to activate OnStar without being in the car?

A: There are several reasons why you might need to activate OnStar remotely, such as if you have purchased a used vehicle that has not been previously activated, if you are unable to access your vehicle due to an emergency, or if you want to activate OnStar while traveling.

Q: Can I activate OnStar if I don’t have the vehicle’s VIN number?

A: No, the VIN number is required to activate OnStar. If you do not have the VIN number, you can contact your vehicle’s manufacturer or a local dealership to obtain it.

Q: What features are available with OnStar?

A: OnStar offers a range of features, including:

  • Remote start
  • Vehicle diagnostics
  • Emergency assistance
  • Stolen vehicle tracking
  • Roadside assistance
  • Turn-by-turn navigation

Closing Statements

Activating OnStar without being in the car can be a convenient and useful solution for certain situations. By following the steps outlined in this article, you can quickly and easily activate OnStar and enjoy the benefits of its services.


  • The information provided in this article is for informational purposes only and does not constitute professional advice.
  • OnStar services are subject to availability and may vary depending on location and vehicle model.
  • Fees and limitations may apply.
  • Contact OnStar customer service for more information and to confirm eligibility.