Forum Widgets
Forum Posts
Onstar module back ordered
Hey guys, I bought a 23 gmc terrain on 1/20 and didn’t notice until days later that there was no light by the Onstar button, I took it to the dealership on 1/31 and was told that the module needs to be replaced, I have a loaner car which I’m grateful for but there looks as if there’s no time line on when this part will be shipped. I’ve been looking at other posts and noticing quite a few people went thru the same thing but a lot of posts are from a year ago, just frustrating that the back order issue still isn’t fixed. The dealership won’t give me back my car until the part comes in. The loaner car that they gave me is a 2022 gmc Arcadia Denali and the Onstar button on this one isn’t working either smh. I guess I’m just here to vent because I just don’t know what else to do at this point.No phones listed in the sharing phone data settings
On my 2026 Buick Envision infotainment system there is a setting that says: Allow the mybuick mobile app to access and use vehicle data on phones listed below.No phones are sharing data with the mybuick mobile app. My Samsung phone should be listed but it's not. Has anyone else noticed this screen in the Settings section?Mobile App
I have owned my 2500 HD for less than a month. The mobile app will work for a few days and suddenly stop updating. I have wasted hours on the phone, uninstalling and reinstalling the app numerous times. Manually entering my login information, can’t use autofill because the system doesn’t work with it. This issue has already been escalated to tech support, who fixed it temporarily. I am really disappointed in the overall owner experience at this point in time.OnStar Module
I bought a 2023 Suburban High Country for my wife on December 16, 2025 and was told that the OnStar worked fine. I have taken the 2 1/2 hour one way trip to get the OnStar fixed. Finally told that they would have to order the power module to fix it but it would take a while to get it in. I is now January 31, 2026 with no word of when the module will be in to fix my OnStar issue. This is totally unacceptable practice by GM. I feel as though many, including myself, have been misled and taken advantage of. Is there anyway to get help for this matter?? Thank you! JohnOnstar app and telematics module 2 vin #
Bought a new 2025 traverse in March 2025! Everything was good! In June my master brake cylinder went out! Was without it for an over a month! November noticed my onstar app buttons on my phone app were not working! Took it in to the dealership! Telematics module needed it to be replaced! Took over a month to get that! Got that out in! Went to use my onstar app and that won’t work! Somehow my app showed 2 2025 traverse vehicles! 1 that is the correct vehicle that shows not connected and the other one that is a z71 that shows connected but is not even my car! But yet it’s connected to my car! The vin number in the app to the vehicle that says connected is not correct vin number to my car but yet it still connects to my car! How the hell is that we don’t know. They have had me delete them reenroll the vehicle and still happens. Don’t know how many times I had to do this and it still connects the wrong vehicle with the wrong vin number but yet it connects to my actual car! Spent hours on the phone have had how many tickets out it and have them escalated up the change of commands! Trying to explain this to the onstar people over and over again is exhausting and they try to tell me it’s fixed but yet I can tell them that no as soon as I reenroll the vehicle it will show the wrong vehicle and vin but yet it will be hooked up to my car. Someone please explain to me how the heck this happens! I can’t deal with onstar people anymore bc it’s not getting fixed! My dealership is trying to help but they won’t talk to him bc he isn’t the owner of the account! At what point does gm take responsibility of all this issues???OnStar Module Disgrace
I’d like to add my name to the list of disappointed customers dealing with this godforsaken module. My Cadillac Optiq is less than a year old. The onboard 5G has never been stable; it always took time to connect when starting the car, which should have been a clue. Starting in December, the GPS began glitching, showing my location incorrectly. Eventually, it stopped working altogether. The OnStar button wouldn’t work, and the mobile app wouldn’t connect. I took the car to my dealership in Burlington, Ontario, where they diagnosed the issue as expected. They let me rent a car over the holidays (and indefinitely it would appear) through my warranty, but the only option available was a far inferior ICE vehicle with terrible fuel economy. I chose an EV for a reason. I drive up to 600 km a week and don’t want to spend that much money on gas. So I asked for my car back, since it still works mechanically. It has now been over a month and neither the dealership nor GM has provided an ETA or any meaningful answers. What’s really embarrassing is that I can’t even use something like Android Auto. My only GPS option is mounting my phone above the massive infotainment screen. It feels like driving a car from 2018. At this point, I can’t imagine buying another GM vehicle. I regret not choosing an Audi; at least they support Android Auto. Don’t get me wrong, the Cadillac Optiq is a fantastic car and I enjoy driving it, but I feel like GM and OnStar are treating their customers like marks. I deeply resent the lack of communication I’ve received.Guardian app not allowing logo
The Guardian app on my phone logged me out this evening and is not allowing me to log back in. It keeps prompting me to enter an invitation code when I have 2 active OnStar subscriptions. I confirmed the credentials are correct and I’ve conducted the below troubleshooting steps. Verified OnStar active subscriptions Restarted device Uninstalled / reinstalled app When I click I don’t have a code, it prompts me to call OnStar to get a subscription.Unable to reach Silverado EV
When I use the myChevrolet app to remotely start climate control on my 2026 Silverado EV, the command usually fails. Other remote actions are also extremely slow and frequently fail. The dealer has inspected the vehicle and replaced the OnStar Telematics Module responsible for communicating with OnStar, but the issue remains unresolved, and I was directed to contact OnStar for further support. The problem occurs regardless of whether the vehicle is connected to my home Wi-Fi or is away from it. This is particularly frustrating during winter months, as I am often unable to precondition or warm up an EV that explicitly reminds the owner to do so in cold conditions to ensure proper battery performance. I have opened multiple support tickets with no meaningful resolution, and I am concerned that my warranty may expire before this issue is addressed, leaving me without recourse for a feature that was advertised and sold as reliable. At this point, I feel that a system advertised as a core feature of the vehicle is not functioning as represented. If this issue cannot be resolved promptly, I may need to report the matter to the Better Business Bureau, as I purchased this vehicle with the reasonable expectation that these connected features would work reliably.
