How to Use GMC Remote Start 

Use GMC Remote Start with an RKE Transmitter:

If you're using your RKE transmitter, here's how you turn on your GMC Acadia, Canyon, Savana, Sierra, Terrain, or Yukon with factory remote start:

1. Point the RKE transmitter in the direction of your vehicle.  

2. Press and release the button that looks like a padlock.

3. Directly after pressing the padlock, press and hold the circular arrow button until the turn signals on your GMC vehicle begin to flash. If you are not in view of your auto, press and hold the circular arrow button for two to four seconds.

4. Your GMC vehicle has now been successfully started remotely.

Used GMC Remote Start with an App

On some newer GMC models, you can remote start the vehicle with either the OnStar app or myGMC mobile app. To remotely start your properly equipped GMC model with the myGMC mobile app, you have to have an active Remote Access Plan or Unlimited Access Plan subscription. Once you're in the myGMC app, press on the "Remote Commands/ Key Fob" button. This will bring up the options to remotely turn on your GMC vehicle – as well as lock or unlock it or flash its lights if you can't remember where you parked.

Change Remote Start Settings

To change the remote start settings, you have to be inside your GMC. On the console, go to Settings > Vehicle > Remote Lock, Unlock, Start.