OnStar Guardian App
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Vehicle Mobile App
Find FAQ and support for the myChevrolet, myBuick, myGMC and myCadillac mobile appsMobile App Support Topics from OnStar Subscribers
My Buick App Location Not Working
My Buick app is not working for location services. I’ve followed all the directions, including ensuring that the locations in the car and phone are turned on. I’ve also removed the app, reinstalled it, deleted the locations, and then added them back. I’m at a loss and need help. I’ve also tried reaching out to the company via private emails, but I haven’t received any useful information.Incorrect picture of vehicle on my dash
Case number 80545225 This issue has been going on since Aug 2025 when I first contacted OnStar. My app showed the wrong picture of my truck and also on the dash. When you send my monthly updates to my email the picture is correct! I was instructed on Sept 3 to send pictures of the vin of my truck, also photo of my dash and photo of app and photo of my monthly updates. I sent all this info to you and received a phone call from some lady stating that you know there is an issue and still working on it. When I fist took delivery of my truck the picture on the dash and app were correct. About a month later it changed to the incorrect pictures. Why is this taking so long to correct? Are you just blowing me off? All the other info vin, oil life etc. seam to be correct, but how do I know for sure? If I need assistance such as an accident or such are you looking at my truck! I'm getting ready to turn this matter over to consumer affairs and National Highway Traffic Safety Administration. PLEASE FIX THIS PROBLEM!I am unable to link my OnStar account to MyChevy account.
We got a 26 Trailblazer yesterday and activated our OnStar account. We have 8 years free of the MyChevy app features (remote start, location, mileage, etc) and a 2 month trial of OnStar. When I open MyChevy app, it is still prompting me to push the OnStar button to activate. It shows in the vehicle status that there is no OnStar account linked. When I go to link my existing account to MyChevy, the page is blank. I've tried through the app, mobile browser, and home computer and have the same issue. I called OnStar and they couldn't help. She said she escalated it, but provided no time frame on when I'd hear back. Despite all this the wifi works, but we have no access to the features of the MyChevy app. Hoping for some guidance since phone representatives have not provided any resolution.Chevy traverse 2025 no longer connecting to app even after modular replacement
I'm not sure if anyone else is having this problem, but I just recently changed the module for my OnStar in the vehicle and brought it home and it will not even update the map or connect to perform unlock or remote start.Cadillac XT4 2019 Radio Issues
Hello, Has anyone else encountered the following issues with 2019 XT4 (Premium Luxury)?: -In-Vehicle Music app stops working when setting favorites through MyCadillac App (iOS). App will not open causing the radio to crash. -CUE system resets when temps are below 50*F or above 95*F; causes radio, Bluetooth, and streaming inputs to all play at once. Shuts down HUD and A/C controls. -Apps constantly displaying error "No Network" when subscribed to App Access and In-Vehicle App Access Plans? I've had this vehicle for 2 years now and have had 4 radio/CUE system replacements and still encountering these. Cameras are working fine after last radio/CUE replacements. Constructive feedback is appreciated; thank you, JippyJayMyChevrolet App shows Generic Image of Vehicle
Hello, I have a 2024 Chevy Colorado. For awhile the MyChevrolet app showed the image of how my Truck looked. However, now it just shows a generic image. I know it's picky, it's just odd, the OnStar diagnostic emails show the proper image. Other GM websites/apps show the correct CGI image, just not the MyChevrolet app For clarity the image it shows currently doesn't have all the factory options. However it used to show my specific trim, wheels, fender flares, etc. All would have been because of certain option codes associated with the vehicle. I have already updated the app, tried clearing the cache, tried uninstalling and reinstalling the app, logging out and back in. I even tried using the MyGMC and MyCadillac apps, both showed the same issue. Nothing seems to bring back the correct vehicle image Just curious if there is a fix or if something needs to be refreshed in the backend systems.Connection Issues
I purchased my 2025 Equinox October 2024. I had no issues until about two months ago. Every command would fail. My Chevy app would not work to turn on the vehicle, lock/unlock the doors, and would not link with the milage/fuel in the car. Spoke to OnStar they could not connect to my vehicle and said I had to take my vehicle in to get looked at. Took it in to the dealership, they had to replace the module. Everything was working great until a few days ago. The app shows it’s connected to my vehicle but commands started to fail again. I spoke to OnStar again they said they could not connect to my vehicle and would need to go back to the dealership.Climate Control Feature - 2025 GMC Sierra 1500
Hey everyone, Looking to see if anyone else is running into this. I have a 2025 GMC Sierra, and for the past few months my myGMC app no longer shows the climate control option. I used to be able to pre-heat/cool the truck remotely with no issues, and then the feature just disappeared one day. It hasn’t come back since. I contacted OnStar online support, but they weren’t any help—they just gave generic troubleshooting steps that didn’t fix anything. Has anyone else had this happen? Did you find a workaround or get it restored somehow? Appreciate any insight.
