Garmin Express is the software from where you can update your Garmin GPS for latest features and maps. Boost the performance of your Garmin GPS device with the latest software updates. Garmin GPS allows you to access the advanced tools for your Garmin Express software. Below are some steps to update your Garmin GPS device. 1. Attach the Garmin GPS device to your computer to perform the update. 2.Download Garmin Express with the help of www.garmin.com/express website. 3.Click the install button and follow the instructions to install Garmin Express in your computer. 4.Click available updates to install the Garmin GPS updates for your device. 5.Disconnect the Garmin GPS and Reboot it to get the recent updates.