The Nuvi 200W is part of Garmin's series of GPS navigation systems. The Nuvi 200W basemap gives you directions from one location to another. If the map isn't fully updated, you could be receiving inaccurate directions. Garmin has a simple process for updating the Nuvi 200W basemap.
Visit the "Web Updater" page on the Garmin website (see Resources).
Click "download" to obtain the latest version of the Garmin Web Updater if you don't already have it on your computer.
Use the mini-USB cable that came with your Garmin Nuvi 200W to connect the device with your computer after the Web Updater is finished installing.
Confirm that you want to update your Garmin Nuvi 200W. The Web Updater will automatically download updates and install them on your device.