Figure 90: Setting Vehicle Type

Some roads and highways have vehicle type restriction, such as forbidding large trucks or commercial traffic. The nuvi 660 allows you to specify what type of vehicle you're driving, and have it route you appropriately.

Although I don't use this feature, if you're a commercial driver, the ability to set this option can be a life saver.

Figure 91: Setting Alerts

The Alerts feature allows you to set custom proximity alerts. When you specify alerts, the nuvi can notify you if you're within a defined range of the POI you specified.

Figure 92: Setting Alert Types

For example, if you save any custom POIs, you can have the nuvi 660 automatically alert you if you're close to one of them.

Figure 93: Configuring the Attention Tone

If you want to have the nuvi beep before each maneuver to notify you that a turn is approaching, you can do so by turning on Attention Tone. The default setting is Off, and I found the attention tone unnecessary.

28. Custom POIs

You can use Garmin's free POI Loader (http://www.garmin.com/products/poiloader/) to load custom POI databases, such as safety camera locations, Dunkin Donuts stores, etc.

The nuvi can also alert you when you are approaching a safety camera and warn you if you're exceeding the speed limit. This feature is probably popular in Europe, where speed cameras are common. Here in North America, speed cameras aren't all that common. Garmin has a subscription service that allows you to download updated speed camera information weekly at http://my.garmin.com.

Once a custom POI database has been loaded, you can also navigate to a custom POI by tapping on Where To -> Extras -> Custom POI.