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 ...
Learn how to set up or change your PIN. Your 4-digit PIN provides an added level of security when purchasing minutes, upgrading your plan & more.
Learn how to link your OnStar account, myCadillac account, and mobile app. One sign-in will give you access to all your rewards, vehicles and apps.
To contact an OnStar Advisor, press the blue OnStar button in your vehicle. Your call will be transmitted to a specially trained TTY Advisor. Use the keypad on either your center display or on your TTY device to type in your message, then tap End. Lines of text on the screen allow yo...
model year and older GM vehicles, as well as select 2015 vehicles, will no longer have access to in-vehicle OnStar services due to cellular network upgrades. If you have questions about vehicles in this model year range, you can contact an OnStar Advisor 24/7 by calling1-888-4ONSTAR. ...
All recipients must be listed on the account with the necessary contact information. To add drivers to your account, push your blue OnStar button or call 1.888.4ONSTAR or 1-888-466-7827 to speak to an Advisor. You can remove some or all of your notification preferences through your myGM...
A PIN is needed to access some OnStar services, like Remote Door Unlock and Stolen Vehicle Assistance. You will be prompted to change the PIN the first time when speaking with an Advisor. To change the OnStar PIN, call OnStar (1.888-4ONSTAR) and provide the Advisor with the current num...
A PIN is needed to access some OnStar services, like Remote Door Unlock and Stolen Vehicle Assistance. You will be prompted to change the PIN the first time when speaking with an Advisor. To change the OnStar PIN, call OnStar (1.888-4ONSTAR) and provide the Advisor wi...
Learn how to use your myGMC Mobile App to remote start your vehicle, unlock and lock your vehicle, view your fuel life and tire pressure and more.
A set of sensors equipped with the OnStar installation helps diagnose the condition of the vehicle. This information is sent to the OnStar advisor which would contact roadside assistance in case of breakdown situations. The same computer system sends out information regarding vehicle damage during ac...