Garmin device will not mount in finder anymore

The GPS shows up in the Bus report but not in Finder:

USB 3.1 Bus:

  Host Controller Driver: AppleT6000USBXHCI

Garmin DriveSmart 66:

Product ID: 0x4ee9

Vendor ID: 0x091e  (Garmin International)

 Version: 0.09

 Serial Number: 0000ce0755f5

Speed: Up to 480 Mb/s

  Manufacturer: Garmin

  Location ID: 0x01100000 / 1

  Current Available (mA): 500

  Current Required (mA): 500

  Extra Operating Current (mA): 0