I need help with: Technical and Service Support Ask questions and get support for your OnStar servicesOnStar Plans Q&A Get your OnStar plan questions answeredOnStar Guardian App Get your Guardian questions answered and help fellow Guardian usersVehicle Mobile App Find FAQ and support for the myChevrolet, myBuick, myGMC and myCadillac mobile apps
Vehicle Mobile App Find FAQ and support for the myChevrolet, myBuick, myGMC and myCadillac mobile apps
New Topics from OnStar SubscribersNewest TopicsMost LikesMost ViewedMost RepliesSolutionsTelematic Control Module Failure - No "Get Well Plan" from GM Corp and the CEO of GM, Mary Barra. To the GM Executive Customer Care and Corporate Leadership and to my fellow GM product owners: I am formally escalating a serious and unresolved issue regarding a Telematics Control Module (TCM) fai...LINE OPCODE TECH TYPE HOURS A CUSTOMER STATES MESSAGE IN DIC TO SERVICE EMERGENCY CALLING ADN LIGHT BY ONSTAR BUTTON IS RED. PO **THE PART IS NOT STOCKED LOCAL, YOU WILL BE NOTIFIED OF ITS ARRIVAL. **ORDERED PARTS WILL BE HOL...Why is the plan renewal offer in the app not available when you go to renew? I have a message in my app that states my plan expires in 1 day, and when I called to renew with that 30% discount, $349.30/year for OnStar One, but I was told it was unavailable to me. Why advertise...Can’t get the 3yr Onstar plan that was included with vehicle I purchased a used 2024 Hummer EV SUV used from a GMC dealer. When I tried to activate the Onstar 3 year premium plan included with the car that is on the window sticker, they are saying since it is...Cancel on star I canceled this several months back and I am still being charged 2024 C8 owners lose out So, The 2020-2023 C8 owners got life time functioning navigation included with no additional subscription cost. The 2025 and newer owners get 8 years included OnStar basics including navigation. ...Why am I seeing unknown recurring charges on my FAB card and how can I stop them immediately? I have been noticing something odd with my FAB card over the past couple of weeks and it is starting to worry me. Small amounts are being deducted regularly and I do not recognize the name of the mer...Rear entertainment screens not connecting to WiFi We have a 2025 Tahoe with the rear entertainment system. Wi-Fi is active and works for all devices except the rear screens. Both display “no internet” when we try to access the apps or browser. Shoul...Good morning I’m stuck on the side of the road Good morning my car stopped on the side of the road Solvedonstar telematics module I have the same problem as everyone else... Onstar Module. I have a 2022 Trail Boss I bought in October 2024. Looking at all the defective modules and time frame to get a replacement my next step i...
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Featured Support ArticleOnStar Services Help: Vehicle Diagnostics What are Vehicle Diagnostics? Vehicle Diagnostics deliver vehicle health updates and reassurance while you’re out on the road. Including an easy-to-read monthly diagnostics report, Dealer Maintenan...
Featured Member StoryCalm, clear and ready to help Here’s what Sarah H. recalls about the crash that Saturday morning as she and her son drove to his baseball game: A car, small and black waiting to turn left after she passed on a two-lane road; a tr...
