Own Route

Just go I278. It will eventually catch up.

Right, that's to simple, if I knew how to get to i278,

I see. Can your unit even do routing? What does the owner's manual say? The only way I could do something like you want on my Nüvi is to find an intermedate waypoint on the 2D map and insert it as a "via". Or, you could save multiple favorites and jump from one to the next to get to the highway.

Or, why not use the 2D overhead map as a "paper map", find an on ramp to the highway and insert that as your intermediate waypoint. Surely, you can zoom out and scroll around to at least find the highway...

Can you insert a waypoint in the middle of the route? My nuvi lets me do that and so i can force it to go to a mid point where hopefully it picks up the remaining of the route that I wanted to take initially.

That is the easiest and best way for me. If I know that I want to go a particular route, I take it and the GPSr will catch up and reroute appropreiately.

By doing that you will get the "A Better Route is Available" or "Recalculating"

Do You have Mapsource installed and unlocked on your pc if so then Yes here is what you do

you make waypoints from point a to point b then follow instructions to recalculate route then save it and then go to tool bar and click on send to device there ya have here is example of the way points first way point where you live second one is on the road then the hwy etc till you get to where you want to go

the route will be calculated via way point to waypoint

Have you tried changing the route options? Shortest route, quickest route, avoid something?

Yes, I did and most of the times the unit will give me the shortes distance, but sometimes instead of inerstate A I want to go via interstate B