Garmin Drive Smart is one of the most preferred GPS devices by vehicle owners. You can get the Drive Smart Garmin updates from the official Garmin support website. You can use either use your Mac or Windows computer to update the Garmin Drive Smart 55 GPS. Make sure not to fall trapped in any unauthorized third-party map updater services and get it always from the Garmin support website. To begin with, you will need to install the Garmin Express software on your computer, register your Garmin Drive Smart 55 GPS and then update the maps and software. Once done you will be notified via a message saying “Your Garmin GPS is updated successfully”. Click Ok over it and start using your Drive Smart Garmin GPS.