Check for Available Updates

• First, make sure your vehicle is parked in a safe and open area with a strong Wi-Fi signal available.
• Start your vehicle and allow the infotainment system to fully boot up.
• Navigate to the infotainment system's main menu.
• Select the "Settings" option from the main menu.
• Scroll down and select "Software Information" or a similar option to check the current software version.
• Look for an option labeled "Update" or "System Update" and select it.

Connect to Wi-Fi

• If prompted, connect the infotainment system to a Wi-Fi network. Go to the "Wi-Fi" settings in the infotainment menu.
• Select the preferred Wi-Fi network from the list of available networks.
• Enter the password for the Wi-Fi network if required and ensure that the connection is established.

Download and Install the Update

• Once connected to Wi-Fi, follow the prompts to download the software update. The infotainment system will search for available updates.
• If an update is available, the system will begin downloading it. This process may take several minutes depending on the size of the update and the speed of your internet connection.
• After the download is complete, you may be prompted to install the update. Confirm the installation.
• During the installation, the infotainment system may reboot several times. Do not turn off the vehicle or the infotainment system during this process.

Verify the Update

• Once the installation is complete, the system should boot up into the updated software version. Navigate back to the "Software Information" section in the settings to verify that the software version has been updated.
• Ensure all functions of the infotainment system are working correctly after the update.

Contact Dealership if Necessary

• If you encounter any issues during the update process or if the system fails to update correctly, it is recommended to contact your local GMC dealership for assistance.
• The dealership may be able to perform the update using specialized tools and equipment.

Following these steps should help you update the GMC Infotainment System on your 2019 GMC Sierra 1500. Always refer to the vehicle's owner manual for specific instructions related to your model.