Hummer EV is broken, no one can figure out why
To sum up the post, if you are used to accessing your vehicle controls from your phone and sending remote commands - do NOT buy a Hummer EV. If you like watching shows on your car infotainment screen while charging - do NOT buy a Hummer EV. if you like checking the app to see how much charge you have on your parked EV - do NOT buy a Hummer EV. Hummer EV is broken. On Star doesn’t know why, Dealer doesn’t know why, GM doesn’t know why. Is it Onstar? Is it the Cars software? Is it the Hardware? No one has an answer, and no one cares. call onstar and they lack the technological know-how to trouble shoot anything that isn’t a “reset”, the dealer doesn’t have the tools to check if the hardware is working and will just tell you to call GM or update the software. GM, well Goodluck getting a hold of them. the sad part is my prior EVs from 2012 and 2018 from Tesla and Rivian had very reliable app connectivity to issue commands. My other car, a Lucid, even lets you schedule your service from it. Never an issue with speaking to your vehicle. So why can’t a legacy car maker like GM figure this out in 2025? On a $100k EV. Hulu app? Doesn’t work, just keep hitting retry. Wi-Fi hotspot? Doesn’t give you the option to turn on data. How much charge does my Hummer have? app says It’s been at 72% since I picked it up from the dealer. Lock/unlock your car or any other remote command? Negative. do yourself a favor, if you want the tech to work, buy the car from a startup, not the guys that retired the H1 Alpha or produced the gaudy H2.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.MyGMC app won't send remote commands
My app is working except it will not send remote commands. When I select lock, unlock or remote start it just says sending for a while and then I get an error message telling me "Unable to reach Sierra 2500HS. Use key to start manually and restore connection." I have reached out to Onstar and GM support multiple times with no resolution. Onstar is supposedly linked to my GM account and all looks fine but OnStar cannnot reach my vehicle. My Onstar button will let me call Onstar just find. HELP!!Climate control from app
I have a 2025 GMC 1500 Sierra Denial Ultimate and I not sure why I can not control climate controls from my app, I have installed the app updated the app signed back in and still no climate controls on the phone , I have read on here that it was taking off when Google was put in the software but I also read on here that GM fixed that and now it works but I cannot see it on my app so not sure what Im not doing right or what's happening and suggestions? Thanks JeffFYI...Trailer Light Testing Is Back
To all community members, if you missed it, I have some good news. Back in March, OnStar removed the Trailer Light Testing feature from the mobile apps, which was a major headache for many of us. The Update: As of the last couple of weeks, the feature has officially returned! You can find it again under the Control Tab in both the myGMC and myChevrolet apps. What’s Next? I’m really hoping this means Climate Controls are next on the list to be restored. They were removed around the same time earlier this year, and with winter hitting hard, having that functionality back would be a lifesaver. Keep an eye on your apps and make sure you're running the latest update!My GMC app.
Has anybody actually had their OnStar app work right after they’ve contacted OnStar about the issues with the app. I’ve owned a truck for over a year and it hasn’t worked right since day one. I’ve contacted OnStar no less than six times and every time they run a diagnostic, it’ll work for two days or less and then you just get tired of it,as of right now my app has been down for 25 days again and I’m just kind of giving up on it. It is a good app when it works. It just doesn’t never work.
