Guardian App Support
Get your Guardian questions answered and help fellow Guardian users
Vehicle Mobile App Support
Find FAQ's and support for MyBrand app
Mobile App Support Topics from OnStar Subscribers
Unable to update
On the app for my corvette it says “unable to update. Refresh or try again later”. I have tried to refresher, sign in and out, and still not working. What route should I go now?
Mobile App
The mobile App no longer works to start my car. I've made sure all the doors, hood, and tailgate are closed. I deleted and reinstalled the app. I restarted my phone. No check engine lights and the app version that I am working off of is 7.3.0 build 3...
Server connect issues
My 2024 Chevy trax will not connect to on star, the on star lights are not on in the vehicle and when u push them nothing happens. The mileage and tire pressure show from 2 weeks ago. My account is active and I have uninstalled the app and reinstalle...
2025 Silverado app not updating status
Have had a 2025 Silverado TB sense Christmas and my Vehicle status has not update in two weeks have tried reinstalling app, signing out and back in. Power cycling the truck and nothing
App not updating
2017 traverse. App has not updated stats in 15,000 miles. I can start my car from my app but nothing else will update even tho it says it was connected 3 minutes ago. I’ve logged out, logged back in. Uninstalled, reinstalled. App and phone are up to ...
Looking in to getting a plan
I was getting the one with Alexa but, now I am seeing in the comments that it’s not even available. So why is the app still trying to sell me that feature???
“GBI” Radio/Infotainment system can’t let you edit radio presets or personalize climate settings?!
Just took delivery of our new 2025 GMC Sierra 1500 Denali two weeks ago and have been disappointed on several issues that don’t seem to work:I received an e-mail from OnStar that mentioned I could personalize radio presets ad climate preferences via ...
2019 equinox won't connect to onstar and won't appear on my chevrolet app
My car won't show on my chevrolet app after calling them for a plan, they told me it would take 24 hours but nothing has worked, how can i get this resolved?
Remote start
Can I use the guardian app to start my vehicle?
Access to the app for 2 individuals who both use the car
My wife and I both drive our 2023 Cherolet Blazer. The app is registered under my email. Everytime I use it to start the car she gets logged out and an email gets sent to my email for verification. This is has been a real pain. Why can't the app take...
MyChevrolet app stopped working after WiFi signal reset.
A week ago OnStar technical support reset my WiFi signal because my WiFi had not worked since I purchased the car on 10/31/24. The WiFi now works but vehicle status does not update on my 2025 Trax. Have called numerous times to onstar support and the...
