Technology that gives you control at your fingertips

Stay connected and in control, wherever you are

Technology that gives you control at your fingertips

Stay connected and in control, wherever you are

See FAQs for availability.
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man with his phone in the hand

Tap. Set. Go

Your journey starts long before the engine does.

With the myChevrolet®, myGMC®, and myCadillac® apps, your vehicle is always within reach.

Start the day feeling prepared, stay connected on every drive, and enjoy knowing the essentials are taken care of before you even step inside.

Push Your Vehicle’s Capabilities

Transform every drive into a smart drive with the Vehicle Mobile App* - Start your vehicle, monitor health, check tire pressure, and enjoy the convenience of remote start. 

Explore what’s possible

Discover six ways the vehicle mobile app brings added convenience
Remote-Assets

Start your drive your way

Get your vehicle ready before you even reach it. Start, lock, or unlock your vehicle remotely — all from your phone, all on your time.
Set-the-mood

Your comfort, your call

Make every start feel smoother. Cool the cabin on hot days or get online via built-in Wi-Fi® — all before you step inside.
Never-forget-your-spot

Find your way back, effortlessly

Your location, your route, your time — see exactly where your vehicle is, get walking directions, explore nearby spots, and send routes straight to your built-in navigation.
Vehicle-Status

Check. Monitor. Relax.

Stay updated with real-time readings on tyre pressure, fuel levels, oil life, and more. Advanced diagnostics monitor key systems — giving you a clearer, calmer picture of your vehicle’s health.
Request-Help

Help that finds you

Flat tyre? Out of fuel? Roadside Assistance* brings help straight to you — offering support in the moments that matter most.
Know-Your-Vehicle

Answers. Anytime. Anywhere.

From dashboard symbols to how-tos, your digitized Owner’s Manual lives inside the app — giving you simple, instant answers whenever you need them.

Download your vehicle mobile app from the App Store® or Google Play*

App Store
Google Play

Know How to Use the App

Get the app today.

Your Vehicle Mobile App* brings your car even closer — giving you simple, helpful ways to stay connected, in control, and ready for every drive.


Select your brand to get started:
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Chevy Apple App Store Chevy Google Play Store 
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GMC Apple App Store GMC Google Play Store
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Cadillac Apple App Store Cadillac Google Play Store

Frequently Asked Questions

How do I set up my Vehicle Mobile App?

Follow these important steps to properly activate your vehicle mobile app. iPhone requires iOS 13.0 or later. Android smartphones require OS 4.0.3 or later.
  1. Make sure your vehicle and mobile device are compatible with the app.
  2. Download the app from the App Store® or Google Play®. Have your username and password handy.
  3. Launch the app and enter your Owner Center username and password. Sign up here.
  4. Agree to the OnStar Terms and Conditions to continue into your vehicle’s app. You’ll only need to do this on your initial login.
  5. Keep your OnStar PIN handy. You’ll need it to access features within your app. Forgot your PIN? Manage your PIN in the Owner Center or push your blue OnStar button to speak to an Advisor.

Which vehicles can I use my Vehicle Mobile App with?

Your vehicle mobile app is compatible with Cadillac, Chevrolet and GMC vehicles from MY21 onwards*. At this time, there are no plans to extend the app to additional 2010 or earlier model year vehicles. 

Do I need a subscription to access these features?

Some services require a paid service plan. For more information about what services are included in which plan, please check the Pricing page.

Can I access my account from the app?

Yes, you can view your account information, check your plan details, and speak with an Advisor directly from the app.

How does Remote Start work?

From a Key Fob*, Remote Start communicates directly with the vehicle through a short-wave radio signal. Remote starting your vehicle from the Mobile App initiates a connection to our OnStar servers, which then communicate to your vehicle through the cellular net to remotely start it. 
See All FAQs

Try our most popular features on us

Enjoy the most popular features OnStar has to offer like In-Vehicle Wi-Fi® Hotspot*, remote commands*, and safety services* on us* in an eligible Chevrolet, GMC or Cadillac vehicle.

Get OnStar
App-Image