Goofy Garmin? Routes like a drunk.

Former Member
Former Member
We gave our Garmin verbal instructions to go to a nearby restaurant as a test.
We knew the easiest, fastest most direct route - but the Garmin took us off the main thoroughfare through a bunch of side streets to get there.
Another test with Basecamp is just as scary.
We know that there is a very direct route from Phoenix to Puerto Penasco, Mexico.
So, as a test, I programed the start and end points and got a route that takes us hundreds of miles off course.
Attached is a screen shot of the goofy Garmin route and a dashed line illustrating the correct route.
What is wrong?
Should I return this new 2699LMT to Costco for a refund?
Or is there a fix for this nonsense?
  • Former Member
    0 Former Member over 10 years ago
    AAAARRRRRGH! I just removed 2014.4 from my system two weeks ago...hadn't needed it for six months....:mad:

    But then, I NEVER trust ANY Garmin map to autoroute correctly anymore and always add vias, so I will probably not see this anomaly.
  • Former Member
    0 Former Member over 10 years ago
    Garmin should have bought Streets & Trips and used it as a base from which to develop Basecamp.
    They would far ahead.
  • Former Member
    0 Former Member over 10 years ago
    We gave our Garmin verbal instructions to go to a nearby restaurant as a test.
    We knew the easiest, fastest most direct route - but the Garmin took us off the main thoroughfare through a bunch of side streets to get there.
    Another test with Basecamp is just as scary.
    We know that there is a very direct route from Phoenix to Puerto Penasco, Mexico.
    So, as a test, I programed the start and end points and got a route that takes us hundreds of miles off course.
    Attached is a screen shot of the goofy Garmin route and a dashed line illustrating the correct route.
    What is wrong?
    Should I return this new 2699LMT to Costco for a refund?
    Or is there a fix for this nonsense?

    The preferred Phoenix to Puerto Penasco route fails on my copy of BaseCamp due to a break (discontinuity) in the 2015 map road vectors at the US/Mexico border crossing.

    Note: New user here. Just signed up to make this post.
  • How can you tell about this break (discontinuity)?
  • Former Member
    0 Former Member over 10 years ago
    How can you tell about this break (discontinuity)?

    Well, in this particular instance there is a visible 263 foot offset along the border between the southernmost end point of the US_Arizona State Route 85 vector and the northernmost start point of the Mexican MX road vector in both the Garmin CNNA NT 2014.4 and 2015.2 maps, so I jumped to a new user conclusion.

    However, C14_Rider, in following up on other posts, and yours in particular, in this thread it appears that there are other "crooked road" routing issues requiring added waypoints as well. So now I need to find where I put the seldom used Nuvi 56 to see how it behaves across Yosemite's California SR120 with the same maps. It does not seem that Garmin has closed SR120 merely for winter snow, but at first glance in January it might seem so.
  • I was also tempted to think there was a break in the 2015.x versions. But the route down highway 85 works fine in Mapsource using the same maps. And selecting the Trucking profile in Basecamp also works.

    ...ken...
  • Well, in this particular instance there is a visible 263 foot offset along the border between the southernmost end point of the US_Arizona State Route 85 vector and the northernmost start point of the Mexican MX road vector in both the Garmin CNNA NT 2014.4 and 2015.2 maps, so I jumped to a new user conclusion.


    Is this with City Navigator North America NT or with City Navigator North America NT Lower 49 States?
  • Is this with City Navigator North America NT or with City Navigator North America NT Lower 49 States?

    I'm using the full North America version that includes Canada, Mexico, Alaska, etc.

    ...ken...
  • Well, in this particular instance there is a visible 263 foot offset along the border between the southernmost end point of the US_Arizona State Route 85 vector and the northernmost start point of the Mexican MX road vector in both the Garmin CNNA NT 2014.4 and 2015.2 maps...

    39_steps -- I'm not trying to be difficult, I'm just trying to understand... On my display of either of those maps, the connection between Rt 85 and the Mexican connecting road which is Benemerito de las Americas, which goes on to connect with the MEX road system, appears exactly continuous even at the 80 ft zoom level, and with the shaping point mentioned previously, the route happily makes that transition across the border seamlessly. So how do you see this 263 ft offset?
  • Former Member
    0 Former Member over 10 years ago
    39_steps -- I'm not trying to be difficult, I'm just trying to understand... On my display of either of those maps, the connection between Rt 85 and the Mexican connecting road which is Benemerito de las Americas, which goes on to connect with the MEX road system, appears exactly continuous even at the 80 ft zoom level, and with the shaping point mentioned previously, the route happily makes that transition across the border seamlessly. So how do you see this 263 ft offset?

    Upon further review, the detailed 2014.4 and 2015.2 maps for BaseCamp, which include Canada, still show the large disconnect at the Mexico MX8/AZ SR85 border crossing.

    However, the Global Map does seem connected, if not road-routable, on either side of the border. So far I have not been able to generate a BC Global Map route that follows the roads. Direct routing only. It is possible that the map which I was permitted to download due to a purchase of a Nuvi 56 in 2014 is different from maps supplied to support other device models. I am not yet checked out on Trip Planning on the (Win7) computer with BaseCamp, as the Nuvi 56 device trip planner was much simpler to learn and met my expectations.

    I