92.7K reviews
Content rating
Everyone
1M+
Downloads
Content rating
Everyone
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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.
Vehicle ownership simplified. Get the myGMC® app today.
Updated on
Sep 15, 2026
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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

90.8K reviews
Nicolas Jimenez
September 14, 2026
Truck had an update and now Onstar doesnt work and half the time android auto doesnt connect. Cant start, lock, unlock or anything with the app. just tells me 'Failed to send signal, use key to start' called Onstar and they tried sending a signal which failed. I went to a dealership and their advice was "disconnect the battery for 20 minutes and see if that helps. if not make an appointment and come back.
4 people found this review helpful
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S Hockaday
June 1, 2026
Update 5/31/26 - it's working again as it should. But when happens, it could be at a moment you need it most. Well, they bricked the app again. Its been working well for the past 4 years and now, nothing. I've uninstalled and reinstalled it at least a dozen times. I've cleared the cache and other files each time. I'm about done with GMC and Onstar.
21 people found this review helpful
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General Motors (GM)
June 1, 2026
We appreciate your feedback and have documented your sentiments for further review. If you have any additional questions or concerns, please visit: https://s.gmc.com/support-request and fill out the support request form with all pertinent details. We’re always happy to help. ~Christian
John P
June 9, 2026
App is too slow. New button style sucks. Bring back the old one. Speed up app. Car takes too long to respond to commands. Remote features are cool. Only worth it if they are running a sale on the service fees! Should add a in car temperature reading. Wish it would run the car more than 10 min. Wish it could restart more than two times after the 10 min timer is up.
13 people found this review helpful
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General Motors (GM)
June 9, 2026
We appreciate your feedback and have documented your comments and sentiment for further review. If you have any additional questions or concerns we may help with, please visit:  https://s.gmc.com/support-request and fill out the support request form with all pertinent details. We’re always happy to help. ~Brendan