Nuvi routing

It's been said there has been some instances of wonky routing by the units, and may well be related to the firmware and maps. Too bad you didn't update before the trip!

Did you have any avoidances set?

that are related. Namely, being instructed to take the off ramp and then get back on again, even though there is no reported traffic on the highway (not that it would make sense anyway)

Juggernaut, only traffic but there never was any concerns or slow downs ahead?!?

To Cagpsfan, I guess crazy things happen. I've had my unit 2 years, have done a lot of traveling but have never had this happen before.

In place of replying to each person like you did above..... do a quote..and then add your comment. you will get the hang of the board.. and btw Welcome to the site, glad you jumped in and started asking questions, thats the only way to learn.

I have had a routing problem that I sent to Garmin with no response that had me getting off and on every ramp for the expressway through Chicago. Obviously sometimes you just have to insert your commonsense and ignore the route. And I wish the GPS would learn my route which is quicker rather than keep complaining about "recalculating." Obviously the easy way is to just turn the route off.

I have been on roads that are the only roads going my way, and had my GPS tell me "There is a better way" to go and when I hit OK it gives me the same road I am on.

With the option set for fastest, I find the Nuvi routed down US 395 from Reno exiting the freeway a few exits before it ends. It seems to like to go down S Virginia well before the freeway merges with that street.

Then again, the latest map update is quite a bit behind the freeway bypass progress in Carson City, too.

I ended up using Google Maps to make the route to keep the Garmin going where I wanted it to, except where it didn't know the road went and Google did.

It interests me that a TomTom has better NFS and BLM roads than the Garmin does, too.

My 855 did that in Kentucky. Took me off the Blue Grass Parkway way. Ended at a closed road. Took out the paper map. Check the 855 later and found out I had it in shortest route. Changed to fastest route and everything was alright went back to the Blue Grass Parkway.

I've encountered this with my 660, and every time I've found it had something to do with my selection of routing.... Set for shortest route, or, set to avoid toll roads and I'm in a location where they are un-avoidable....

Just another reason to keep a paper map in the glove box. You should always review a long trip with a paper map before leaving. If your GPSr is working well the last thing to do is upgrade firmware before you leave as suggested in a reply above, because of the unknown quirks of that upgrade.

Don't be a follower,if something doesn't seem right, chances are it's not, open the map and take a look.

I found that my Nuvi took me 1 mile west, 1 mile south and then 1 mile east before taking me south to where I was headed. I felt like I was going in circles even though I got to my final destination.

I have also found the distance off. I have been in front of my destination and Nuvi will say 200 ft. this has also happend at stop lights where I am waiting to turn and it says 200 ft to turn left.
Are there any fixes for these problems.

We went to pick up my Daughter at YOW last night and our GPS had us going all around the perimeter of the airport but not to it, and when we doubled back and got on the right road, that was very clearly marked, the GPS told us we were *off road*...

Before we even got there it had us take a weird turn on a side street and then tell us to make a right hand turn where one was not permitted.

My Daughter told us that her friend thinks it has something to do with interference from solar flares.

It's not like we are off the beaten path, we were at an international airport that we have been to many times and never had this problem. so something has changed.

I have a Nuvi 1490t and a 855t and the only way they route me off highways on back again if I tell them to avoid traffic.
I was driving from Chicago to Orlando and in Atlanta the Nuvi took me on a 15 mile detour to avoid traffic on I75 south...guess what it was correct with the traffic situation.

I think the 2012 (12/21/2012) phenomenon has started; Strange weather, earthquakes in DeKalb County, IL, Haiti and California (even though that's not uncommon).

I have had some of the same strange GPS occurrences. It was taking me over two lane roads with 55MPH speed limits in place of 4 laners with 65-mph limit. My employer provides me with an auto with an in dash navigation system. I started at a customer’s location and programmed both the Garmin & the In Dash to the same destination. The Garmin took me over hill & dale on local roads. The in dash took me directly to the Interstate. My voices also seem strange. Instead of on the left or on the right. Jack sounded like he was speaking French; on waa. So I did a hard reset (didn’t lose the favorites) and set it outside for a while. Tomorrow I try it again and see if it’s cured.

I agree. Same logic applies to the routes given by MapQuest, AAA and Google.

We expect too much of technology - just think how short a time ago it was when consumer GPS units first came out.

My unit only started this sort of routing AFTER I updated the map to 2010.40. It even re-routes if I happen to stop ON THE ROUTE. It's been VERY stupid since the map update and I don't think I'll buy another Garmin unit. I spoke to Garmin about this and was basically told that I'M the problem... not the unit.

Check the thread I started for more information. It's the one about stupid routing.

As I read through some of the problems being reported I'm wondering if the problem isn't related to the type of routing reported by Eco-Route users. While my units don't have Eco-Route, past history has shown it prefers roads with lower speed limits over higher speed Interstate type routes. It sounds - and this is pure conjecture - as if the map data in the 2010.4 release is keyed to Eco-Route preferences. It would explain a lot of the strange routes being reported,

I've had that problem also

I have had this happen to me several times. I don't have an explanation for it though.

This happened to me also while my wife and I were in Canada. Told us to exit the expressway and then to get back on. Don't know why but my Nuvi 750 still got us to our location.

I sent a report into Garmin well over a year ago about an exit by the airport in Miami. Near the airport, SR 112 West has 3 exits close to each other. One exit for US 27, one for NW 36 St, and a direct lane into the terminal. I always get off at US 27 exit, but the Nuvi constantly wants to route me to the 36th St. exit, down to Lejune Rd, then right on LeJune to SE 8 St to make a left and go down a few blocks to get on US 27.

The funny thing is, if you do this route on Mapsource, using the same version of maps, it routes it correctly at the exit for US 27.

I assumed it would be corrected in an update not too far off, but there have been over 4 updates released since then, and still not fixed. Not sure if Navteq is dropping the ball, or if it's Garmin.

That is unless it STAYS enabled even if you haven't selected it.