While you’re on the go, you’re in tune with your vehicle. The myCadillac app lets you send remote commands (if your vehicle is properly equipped), manage your vehicle’s maintenance and gives you an elevated ownership experience with tips to help improve your driving, easy access to available Roadside Assistance and a way to earn rewards while on the go. Download the myCadillac app* today. Start by logging in with your Cadillac Owner Center or OnStar username and password. See for details and limitations.

Remote Key Fob**
Take control. With your key fob on your smartphone, you’re always in command. Remotely start, stop, lock and unlock your vehicle. Or even activate the horn and lights to help you spot it.

Vehicle Status*** / Schedule Service
Check in. Check the status of certain vehicle systems and schedule service with your participating dealer without leaving the app. Monitor Fuel level, oil life and tire pressure. Schedule service and check the status of your appointment.

Roadside Assistance
Get help. Have a flat? Need fuel? Request Roadside Assistance in the app or call an OnStar Advisor. Help is on the way.

myCadillac Rewards****
Earn rewards. Watch your points rack up and redeem well-earned rewards. Learn about/enroll in the program, see your active point balance, and conveniently access your account.

How Things Work
Tutorials and more. From available 4G LTE Wi-Fi Hotspot to parking assist, learn more about your vehicle.

Shop and save. Satisfy cravings for less with discounts along your route for restaurants, gas stations, retailers, hotels, and more.

*Service availability, features and functionality vary by vehicle, device and the plan you are enrolled in. Terms apply. Device data connection required. Roadside services provided by Allstate.
**Requires subscription to Remote Access Plan, which does not include emergency or security services. Unlock feature requires automatic locks. Remote start requires GM factory-installed and enabled remote start system.
***Not all issues will deliver alerts. Does not monitor spare tire. Vehicle Status features require a paid plan.
****Please view full program Terms & Conditions at
*****Valid offers can vary. For latest offers, check Marketplace through your vehicle’s infotainment system (if available) or through the vehicle mobile app.

What’s New

Version 3.31.0

We update our app regularly to add new features and improve performance. We’ve added the following features in this release:

Bug fixes and minor enhancements.

Ratings and Reviews

4.9 out of 5
58.6K Ratings

58.6K Ratings

bz257g ,

Finally fixed the Watch app and it now works like it used to!

The Apple Watch app hadn’t worked for me the last several versions. I thought it was maybe just my watch since the iPhone app works fine. Just updated my phone to IOS 13 and also got a new watch but the Watch app still didn’t work! When I press the remote start or lock/unlock buttons it acted like it was going to work but then nothing.
I then did a little research and found that others had the same problem and the solution was to leave the iPhone app running in the background but that only worked sometimes.
I am now happy to report that they have fixed the Watch app and it works great again. I would highly recommend this app to anyone with a Cadillac OnStar vehicle. I use it almost daily and have it as a quick access button on my watch face. Now if they could just fix how long it takes to unlock!

Developer Response ,

We are glad to hear that your concerns have been concerned. In regards to your mobile app concerns, we recommend uninstalling/reinstalling your app. If you continue to have trouble, please email with "ATTN: myCadillac/bz257g" in the subject line so we can assist. ~Jessica

Nettie D ,

Very UNHAPPY GM customer

I’ve had a Cadillac for the last 20 years and I’ve never been so disappointed until NOW! I also used to get free updates and reports about car diving history and unused to be able to remotely unlock my car using the ONSTAR app. Just come to find out, onstar has discontinued their app and now rerouted to Cadillac app for all these features to be paid for monthly or a yearly basis!! This is ludicrous considering how expensive our premiums are already! I’m very disappointed and this is probably why GM stock continues to decline and not offer the best customer experience! Our other vehicle is a Tesla and their is currently nothing that matches their utmost excellence in customer service and FREE features available to the customer! That is why Tesla is now currently the number one auto manufacturer in the world with stocks grazing above $500 a share! ought to get your act together and revert to offer your customers the best client experience if you want to continue to succeed in the auto industry or face the ramifications of prior auto manufacturers who are declining rapidly! This will be a main reason for our family NOT to continue purchasing another GM vehicle when this last lease is up! Very sad !

Developer Response ,

Thank you for sharing your candid feedback, Nettie. We have documented your comments within our systems for the review of our internal teams. If you have any further question or concerns about our app that you'd like to express, you're welcome to reach us at ~Jen

BHebel ,

Cadilac app/Onstar app

Never get locked out lost or forget where I left my car easier than a phone call when you get old and forgetful stuff that help you remember being able to send directions to my car before I’m even in the car took navigation to the next level. Saved me more time than I can count and one of the few things in life that should be free and ones that aren’t would be worth every penny being its free makes you think of all the garbage you have to pay for this is a everyday multi use app for a guy who stil wishes it was 1980 and had a beeper things like this make life a little easier better than a self driving car app.


General Motors
325.6 MB

Requires iOS 11.3 and watchOS 3.0 or later. Compatible with iPhone, iPad, and iPod touch.


English, Arabic, Bulgarian, Croatian, Czech, Danish, Dutch, Estonian, Finnish, French, German, Greek, Hungarian, Italian, Korean, Latvian, Lithuanian, Norwegian Bokmål, Polish, Portuguese, Romanian, Slovak, Slovenian, Spanish, Swedish

Age Rating
Unrestricted Web Access


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

More By This Developer

You May Also Like