Garmin nüvi 2555LMT 5-Inch Portable GPS Navigator with Lifetime Maps and Traffic

Any ideas? If it helps, we have been traveling through mountains and across ferries. The only things I could think of would slow the average speed and not increase it. Could it be that we adjusted the clock back 3 hours?

A: There is a glitch in the program. I sometimes have the same problem. For some reason it records a much higher distance traveled than was actually traveled. Since the time is correct, it will give a higher average. I've had averages as high as 400

Garmin Gps Mount | Auto Navigation Systems & GPS

The Garmin gps mount will improve your traveling expertise by holding your gps unit in place. The Garmin gps mount is also quite secure because the unit posesses friction mount that keeps it in spot even when producing tough manuevers on busy city streets or on crowded highways. Garmin has produced a new should have unit for those of you who currently own a Garmin gps (international positioning program) product. The Garmin gps mount has fixed this problem for me and I am good that this unit will fix this concern for you. The design of the Garmin gps mount is thin and sleek therefore it doesnt take up significantly space on the dashboard. Your respective gps unit can be secured simply into the mount. The mount contains a ball attachment so you can easily adjust the mount to the finest angle for you. A lot of occasions when I am driving, my gps unit will slide all above the dashboard and often fall on the floor, specially when generating wide turns....

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