Garmin 330 GPS using abroad

In order to use the C330 in foreign countries, you need to purchase the maps for those countries and insert the SD card into your unit. You will then have to select the proper maps to use on the unit. These maps are available for purchase at www.garmin.com.

As far as getting around closed roads, your unit will automatically recalculate your route if you are unable to take the suggested route. You can purchase updated maps, but I do not believe this will help you will roads closed for repair.