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Acura NSX Map Update USB Not Detected by Garmin Express on a Mac

USB communication issues can prevent your USB drive from being detected by the Garmin Express™ application.

Visit https://acura.garmin.com/acura before starting the map update process for instructions on preparing your USB flash drive. 

Ensure the Mac Recognizes the USB Flash Drive

The USB drive will be displayed as a removable disk drive in Finder when properly connected to a Mac computer.

To Check Whether the Mac Recognizes the Connection:

1. Connect the USB flash drive to the computer

2. Click the Finder icon on the dock

red box around smiley face icon

3. Click Go in the menu bar at the top of the computer screen

MAC menu bar with Go selected

4. Click Computer

MAC Go menu with Computer selected

The USB drive will display as a disk drive icon. 

Mac Finder window with available disk drives displayed

USB Drive Does Not Display as a Drive in Finder

Ensure the USB Port is Working Properly:

  • Try a different USB port on your computer and/or test the USB port with a different USB device
  • Avoid connecting through a USB hub, USB extension cable, keyboard, or monitor
  • On a desktop computer, use the USB ports on the back of the computer

Restart the Computer and Try Again:

1. Click the Apple icon in the menu bar

2. Click Restart...

3. Click Restart to confirm 

USB Drive is Recognized by the Computer but not by Garmin Express

See Garmin Express Not Detecting Devices on Newer Mac OS if you are on Mac Catalina, Big Sur, or newer.

Ensure Garmin Express is Up to Date:

1. Open Garmin Express 

2. Click Garmin Express in the Apple menu bar 

Red box around Garmin Express

3. Click About Garmin Express 

Red box around About Garmin Express under Garmin Express

4. Click Check for Updates to Express 

Red box around Check for Updates to Express

5. Click Install Now if prompted

Red box around Install Now

The latest version of Garmin Express can also be downloaded and installed from the Garmin Express page. 

Garmin Express will be up to date once the installation completes. 

If Your Device has Already Been Added to Garmin Express, Try Removing the Device and Adding it Back Again:

To Remove the Device: 

1. Open Garmin Express

2. Hold Control (Ctrl) on your keyboard, and click the device when using a one-button mouse on a Mac

Remove from Express window on a MAC

3. Click Remove from Express

4. Click Remove

The device will now be removed from Garmin Express

To Re-Add the Device:

1. Open Garmin Express

2. Connect the USB flash drive to the computer

3. Click Add Device

Add device screen in Garmin Express

4. Click Add Device when the device is found

Device found screen in Garmin Express

5. Follow the on-screen prompts to add the device to Garmin Express

Uninstall and Reinstall Garmin Express:

See Full Uninstall of Garmin Express

The latest version can be re-downloaded by visiting https://www.garmin.com/express once Garmin Express has been uninstalled.

If These Steps Did Not Resolve the Issue

Visit Related Content at the bottom of this page or the Garmin Express section of Support Center and you will find the available Product Support contact options in the Contact Us for More Help section. 

Contact Us for More Help