Garmin Express Not Detecting Devices on Newer Mac OS

Mac Catalina 10.15, Big Sur 11.0, Monterey and newer require permission to allow devices to connect with Garmin Express. You may see a message that Garmin Express would like to access files on a removable volume.

Selecting OK will allow Garmin Express to recognize the device.

Selecting Don't Allow prevents Garmin Express from recognizing the device. This can be adjusted in the Security and Privacy settings on the computer if Don't Allow was accidentally selected.

NOTE: Some newer Mac computers may only have USB-C or Thunderbolt ports, which would require an adapter. Apple has a helpful support article that explains different USB types, how to identify them, and what adapters can be used: Identify the ports on your Mac.
If the Security and Privacy settings are set to allow Garmin Express to access files on a removable volume and the device is still not being recognized, refer to the following articles for additional troubleshooting suggestions:

• Automotive Device Compatibility with Garmin Mac Applications on macOS

• Automotive Device Not Detected by Garmin Express on a Mac

• Honda Map Update USB Not Detected by Garmin Express on a Mac

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• Outdoor or Marine Handheld Not Recognized by Computer or Garmin Applications

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Adjusting the Security and Privacy Settings

1. Select the Apple Icon.

2. Select System Preferences.

3. Select Security & Privacy.

4. Select the Privacy tab.

5. Select Files and Folders.

6. Select the box next to Removable Volumes for Garmin Express to add a checkmark.

• • If Garmin Express is not listed in the privacy tab under Files and Folders, try creating a new Admin user on the Mac or try using another computer.

  • If this option does not appear after creating the new Admin user, the Mac may need to be serviced.

7. Select Quit Now. This message will only appear if Garmin Express is open or running in the background.

NOTE: The computer may need to be restarted after completing these steps for Garmin Express to detect the device. 

Adjusting the Security Setting on a macOS Ventura

The Ventura OS includes a new security feature that by default only provides the accessory security pop-up on new devices. If necessary, this setting can be adjusted.

1. Select the Apple icon in the top-left corner of the desktop.

2. Select System Settings.

3. Select Privacy & Security.

4. Scroll down to the Security section.

5. Select the pop-up menu next to Allow accessories to connect and select an option:

   • Ask for New Accessories

   • Ask Every Time

   • Automatically When Unlocked

   • Always

6. Close out of System Settings and restart the computer.

Refer to Apple Support for more details.