Garmin GPS updates are important to ensure that your GPS device is accurate and up-to-date with the latest information. These updates include new maps, software, and firmware that improve the device's performance and accuracy. Updating your Garmin GPS is a simple process that can be done using Garmin Express, a free software application available for Windows and Mac computers. Once you have downloaded and installed Garmin Express, connect your GPS device to your computer using a USB cable and follow the instructions in the app to check for and install available updates. It's recommended to update your Garmin GPS regularly to ensure that you have the latest maps and software and to maintain the device's performance over time.