4.6
81K reviews
1M+
Downloads
Content rating
Everyone
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image

About this app

Control your vehicle from the palm of your hand with the myGMC app, connected by OnStar. Start your vehicle, set your ideal cabin temperature and more right from your phone. You can also easily find your vehicle and get walking directions to its location. Plus, keep track of your fuel level, tire pressure, oil life and odometer. You can even schedule service and request Roadside Assistance with the tap of a button. Get the app that makes ownership better at every turn.

Download now.

Disclosures:
Mobile app functionality is available on select devices and requires data connection. Services availability, features and functionality vary by vehicle, device and the plan you are enrolled in. Roadside service availability and providers vary by country. Map coverage, features and functionality varies by country. See onstar.com for details and limitations.
Updated on
Oct 16, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
Photos and videos, App activity, and App info and performance
This app may collect these data types
Personal info
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

4.6
79.3K reviews
MsChelle7
October 31, 2025
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!
Did you find this helpful?
General Motors (GM)
October 31, 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
September 4, 2025
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
Did you find this helpful?
General Motors (GM)
September 4, 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
August 18, 2025
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
Did you find this helpful?
General Motors (GM)
August 18, 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

What’s new

"See our commitment to enhancing your ownership experience through updates and software refinements below because Better Never Stops.

- Get more control with a new Apple Watch screen, unlocking even more vehicle features
- Minor fixes and improvements"