My OnStar Account | Frequently Asked Questions | Support Your GM Account is where you can view, manage and change your OnStar * plan and find plans and pricing information tailored to your vehicle Specifically, you can add to or select a different plan, get your vehicle mobile app information, review diagnostic information, * receive vehicle support, manage maintenance and service, access an online Owner's Manual, and review helpful how-to content
Contact Us by Phone or Mail for Information | OnStar Contact OnStar for questions and information on your specific plan or even payment information by mail or by phone All contact information is available here
Essential OnStar Benefits Are Now Standard | OnStar Essential OnStar benefits including select remote commands, help in a crash, and voice assistance are now standard for owners of 2025 model-year GM vehicles
Emergency Navigation Help | OnStar Services Welcome to OnStar Where you can get Roadside Assistance * or navigation when you need it, Emergency Services * 24 7, and a vehicle mobile app * that connects you to your car from anywhere You’ll even discover hands-free driving with OnStar Super Cruise TM * and a helpful assistant with Alexa Built-in *
OnStar One | All-in-One Safety Connectivity Plan OnStar One is the all-in-one plan for safety, security, and connectivity—combining stolen vehicle tracking, roadside help, Wi-Fi®, and more in one smart bundle
OnStar Vehicle Mobile App | OnStar Services Download OnStar's vehicle mobile app and control remote commands more right from your smartphone Available for Chevrolet, Buick, GMC and Cadillac