
MsChelle7
- Flag inappropriate
- Show review history
Updating my rating because this app is becoming more & more unreliable! I shouldn't have to keep uninstalling & reinstalling the app for it to work. The issue is with the remote start option in the app. When using it lately it won't start my vehicle and I get the following message: Unable to reach Terrain. Use key to start manually and restore connection. This is a first & there's no rhyme or reason. I pay extra for the app but may as well cancel my subscription due to unreliability!
General Motors (GM)
31 October 2025
We realize how important it is that the Remote Start feature functions properly, and this isn't the experience we want for our members. Please send an email to us at socialmedia@gm.com with the subject line "ATTN: myGMC app/MsChelle7" so we can further help. ~Sara

Richard O'Hara
- Flag inappropriate
- Show review history
Buyer beware. When you first buy your vehicle the app is easily available. You give GM permission to do all sorts of things, and when your vehicle hits a certain mileage they start charging you. The permission you gave them is still there but they are not providing you any service. They can track your oil change intervals, speed, etc... not for you, but to deny warranty.
26 people found this review helpful
General Motors (GM)
4 September 2025
We appreciate you taking time to leave a review. We take your privacy very seriously. All OnStar services are opt-in. Members decide whether a connection to their vehicle is activated or not, and you can deactivate at any time. Email socialmedia@gm.com with "ATTN: myGMC App/Richard O'Hara" in the subject line if you need help with this. ~Kyja

Mike Oglesbee
- Flag inappropriate
- Show review history
Update: I didn't think it could get worse, but it has. The latest update caused the vehicle status to stop responding. The oil change, fuel level, etc. will not update anymore. I reinstalled the app, reconnected my phone to the vehicle, reaccomplished the trusted device steps, and even activated android auto. At least that got controls working again, but not anything else. To add insult to unhurt, if I close the app, it won't open back up unless I restart my phone. PITA
28 people found this review helpful
General Motors (GM)
18 August 2025
Seeing the status and diagnostics of your vehicle is a core feature of the app that we don't want you missing out on, Mike. Our team here would love to step in and see if we can be of assistance. To begin, please email us at socialmedia@gm.com with "Attn: myGMC App/Mike Oglesbee" in the subject line with more information. ~Jacob