My OnStar Account | Frequently Asked Questions | Support How do I find my OnStar account number? You can push your blue OnStar button, call 1 888 4ONSTAR (1 888 466 7827), or refer to your Member card or OnStar monthly diagnostics report for your OnStar account number
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
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 Connect | In-Vehicle Apps, Audio Voice Control With OnStar Connect, you can stream music, listen to podcasts and audiobooks, and get real-time news updates right from your in-vehicle apps without needing to connect your phone
OnStar Guardian App | FAQs | OnStar Support Learn all about how the OnStar Guardian App works, where you can use the app, and so much more with this frequently asked questions section
New 2025 Buick Encore GX 8 year OnStar Free We do appreciate your question and regret to hear of any previous miscommunications with our live Advisors To further clarify, the OnStar Basics Plan does include Automatic Crash Response and remote commands Please know, Turn-by-Turn Navigation is not an included feature of the OnStar Basics Plan To learn more about what OnStar services are included with your 2025 model year vehicle