Technical and Service Support
Ask questions and get support for your OnStar services
Public Safety & Crisis Preparedness
Find information and tips to prepare for the unexpected and get updates during a disaster or crisis.
Super Cruise
Ask questions and find answers about Super Cruise
OnStar Support Topics from OnStar Subscribers
Change dealership for warranty service
Hello, I am having my car serviced by another dealership in lieu of the one I originally purchased the vehicle at. The old dealership keeps on calling me and will keep on calling me until I change the dealer on On Star. Can someone please show me whe...
OnStar Crisis Assistance | Hurricane Milton
Listen to local evacuation orders regarding #HurricaneMilton. OnStar Advisors are available to help with finding safer routes, locating shelter and connecting to loved ones. These services are complimentary to Chevrolet, Buick, GMC and Cadillac owner...
myCadillac on Lyriq will not open
Since day one when I purchased my 2024 Lyriq the myCadillac app in on the vehicle will not open. It goes to open then crashes. I can't uninstall or reinstall it? Likewise, on my phone the myCadillac app will randomly connect and update the stats from...
No internet on my truck for the past 3 year ever after reset after reset.
After paying for ATT cellular in my truck for 3 years it really never works. I get wifi but not connection out. I invested money (paying for service). Lots of time contacting onstar for resets and ……. Still no internet no solution. I call the reset t...
Truck not connecting to Internet
My 2022 GMC Sierra had to have a computer reset as it was not connecting to the internet. It has now been returned from the dealership and the computer says i have to shop and buy a plan. I already have a plan that I pay $39.99 a month for so why won...
Monthly report no longer reports energy efficiency stats.
The format of the monthly diagnostic report for my two Chevrolet Bolts changed this month and no longer include statistics on energy efficiency (MPGe, kWh/100 miles, miles driven, etc.). I use this information for a variety of purposes and collecting...
WarnerMedia App - 2024 Chevrolet Colorado Bison
I have apps available and I am paying for premium Onstar, I have looked for warnermedia app and can not find it in the infotainment or under Apps in settings. My vehicle is equipped and should be able to get it, am I missing something?
Internet
WiFi working and everything is connected as it should be but, still no internet connection. Only had car for a month, 2024 Equinox Ev. Not going to continue paying for a service that isn’t working the way it should. I’ve looked at other post and am s...
WiFi on but no internet connection anybody got an answer?
Brand new 2024 Yukon with unlimited data plan. -data plan has been purchased and works fine in another car-hotspot in enabled via the GMC app-hotspot sharing is “on” inside the vehicle-left dealership originally with new car thinking it was working. ...
My Chevrolet App
The my chevrolet app will work on my wife's IPhone but will not work with my Android. I went through everything I was told to do, still won't work ! Everything worked fine until the 'my chevrolet app' was updated ! Seems to me it's no longer compatib...
Plan Needed ??
Have preferred plan. Have had to do a complete reset to factory resets for issues with connectivity and use of hands free phone calls.Now, my speed limit sign does not show. When I try to turn it on again, it says "Plan Needed" on the dashboard setti...
After Market Remote Start
I had an after market remote start (Viper) installed on my 2020 Colorado, now On Star cannot run diagnostics. I can run the diagnostics from my phone app. But the monthly On Star diagnostics says an after market device is installed. Do I need to have...
myBuick app/MS Edge
Hi,Recently purchased an Envista. The app worked perfectly few weeks but then stopped working. I tried everything but nothing seemed to fix the issue.I'm able to login to the app. It does email me the login PIN. I type in the PIN, click OK, and the a...
Unable to add family members to Guardian
"We are experiencing technical difficulties completing your request, please try again (500)"This is what I receive when I try to add my family members
