Wrong information i have the c330 and am not happy with it . it has had me turn down a highway the wrong way on 2 different times it had me go down one way streets the wrong way .it also just stops working .the screen freezes and you pass your destination

You can tell the unit if you would rather go Shorter Distance or Faster Time. You can also tell the unit you would like to avoid highways. But you cannot tell the unit you would like to avoid CERTAIN highways, nor can you delete individual roads from the unit. If you do not like the route the unit selects, you can press the Detour button at the bottom of the screen (once the route has been selected). If you know a better way to begin your journey, simply go that way and the unit will recalculate your route.

please do a firmware update sir

Try removing the memory card and the battery
Then power on the camera w/o the memory card
Then if the same problem persist try formatting the internal memory

If Problem Still persist you could call 1 800 235 6325 op 12 then op 2 your camera might be needing repair

they set the timing WRONG and that is an interference motor so the valves hit the pistons

try this just worked for mine


1.Under the face plate by the Garmin Logo.Use your thumbnail to remove the plate.
2.Press the reset button.
Information located on page 28 of the owners manual if you need a diagram.

if you scroll through the menu to setting you will find when you set it up it was set to take the highways you can change this so it takes the shortest ot fastest routes .

iy wont evev dhut dowb

When Mine did that I bought an external antennea and now it works great

did you check the avoidance settings.....possibly you checked highways and the GPS is avoiding them

Are both units set to the same level of detail in the map options?

It is possible to choose the level of detail displayed on the maps. Look at your map settings in the setup menu to increase the map detail.

The level of detail may also be different if both models are not set to the same map scale. The more you zoom in, the more detail you see.