PPENDIX Updating the c330 Software and Map Data Garmin periodically updates its software and map data. If you register your unit, you will receive notification of software and map updates. Check the Garmin Web site at map software is available. Also check Updates link to see if an update to the c330’s internal software is available.
Garmin Streetpilot C330 Manual
Just a heads up to anyone who recently purchased a C330. According to Garmin's tech support, the map udate 2008 is not free to those of us that recently purchased a C330. Only to those who purchased a C340 and up. Their excuse is that it is a 'low end' unit, and also that the memory cannot hold the full US maps on the DVD. Gee, I can purchase the update for $69.99 and load a subset of the maps if I want, according to the person in tech support, but I cannot receive it as a free update. So, apparently buyer beware if you purchase Garmin's 'low end' units. You will apparently not be able to receive a free update of maps, even if the unit you buy is already out of date. Looks like I need to return the unit and buy a TomTom.