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 RepliesSolutionsNut Connected myCadillac app says my vehicle is not connected Error on HWY 169 & 207th This has happened to me consistently on this highway and on one of these occasions it was extremely abrupt lane switch VERY uncomfortable. Not to mention extremely unsafe. On 169 northbound while dri...2025 equinox ev telematic module backlog time I have been waiting for a telematic module for my 2025 Equinox EV RS for three months. Only update from my service advisor is not ETA on the replacement module from GM. Very disappointing. V471 update not installing. Help Radio is now muted and it won't install the update Super Cruise Question Using Super Cruise on my 2025 Cadillac CT5 when have automatic passing enabled it will complete the initial pas but will not switch back to the original lane no matter that it is safe. Anyone have th...2026 Tahoe Premier Infotainment Suddenly Lost All Apps – No OnStar, Wi-Fi, or Google Services Hi everyone, I have a 2026 Chevrolet Tahoe Premier, and recently my infotainment system suddenly changed to a very basic screen. Almost all apps disappeared without warning. Current issues: • No a...Why didn't my alarm go off? I have a 2016 Camaro SS, and we got hit with a major storm last night. A branch must have weighed 1000 lbs. broke off and landed on the roof and smashed the rear window. It took 3 guys to lift it off...We're completing your digital order I recently purchased a Supercruise plan, and the app froze up during the purchase. I got a receipt email, and tech support was able to get my plan working in the vehicle. Since this purchase the app ...Lyric Charging Temp Problem Since the latest update has now set a Limit Temp for charging, I can no longer get a full charge at home. I have been charging the car with no problem over the last year. Now when the handle reaches ...Navigation My navigation has no sound. Can I adjust the volume and how to do it Thank you Ruth
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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...
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