Navigation Quirks

[harwax]

Went on a 500 mile trip & found the navigation system doesn't seem to measure up to the rest of the car. Main quirks that hit me are:

1. If you are on a highway, it seems every 5 to 20 miles the the "voice" will tell you to "keep to the right" even though you will be on a straight road for at least 100 miles.

2. related to #1 above, it also can't tell you to stay straight for the next 100 miles but recalculates and only goes 5 to 20 miles before "next turn/ stay to the right" which is really still going straight on the highway.

3. If nav tells you there is "traffic ahead" I think it can give you alternative routes (I think I was able to do this once - but couldn't find it again). Can you request alternative routes without first having a "traffic ahead" warning?

BTW I averaged 29 MPG on the 2015 tech V6 using adaptive cruise contro about 65% of the time and in "regular" mode.

Thanks

 

[Seattle Genesis]

Maybe the nav system is telling you to stay to the right cause you are driving slower than everyone else. Sure wish they'd put that recording in everybody's car up here in Seattle. Hahaha

 

[Pahaska]

When you get the "keep to the right" or "keep straight", it is usually a function of the map database, rather than the car's navigation capability. There is often an option to exit at that point or a split in the road, but it is also very often a change in name of the route being followed or the addition/subtraction of another route. For instance, you may be on HWY 123, but at some point, the database has the road coded as "Hwy 123/Main Street" or "Hwy 123/Fm1833." When this occurs, you will get a voice message. I get the same thing on my Magellan portable in my truck. With the exception of places like west Texas, very few roads continue for a lot of miles without having some change in the map database.

On I-35 between Austin and San Antonio, I get a dozen voice messages as the interstate passes through towns. Even in west Texas, farm-to-market roads may join I-10 for a few miles and then branch off, resulting in two voice messages. This is a relic of when I-10 was US-290, years ago.

Rather than finding it irritating, I like the additional information.

 

[ksoze]

Rather than finding it irritating, I like the additional information.

and some drivers would rather not be woken up continually

 

[harwax]

I never meant to say nav says "keep straight". Nav only tells me to "keep to the right" when it is still a straight drive ahead & thanks for your help in my understanding of why a straight road might be broken up into many segments.

 

[Nikgen]

Went on a 500 mile trip & found the navigation system doesn't seem to measure up to the rest of the car. Main quirks that hit me are:

1. If you are on a highway, it seems every 5 to 20 miles the the "voice" will tell you to "keep to the right" even though you will be on a straight road for at least 100 miles.

2. related to #1 above, it also can't tell you to stay straight for the next 100 miles but recalculates and only goes 5 to 20 miles before "next turn/ stay to the right" which is really still going straight on the highway.

3. If nav tells you there is "traffic ahead" I think it can give you alternative routes (I think I was able to do this once - but couldn't find it again). Can you request alternative routes without first having a "traffic ahead" warning?

BTW I averaged 29 MPG on the 2015 tech V6 using adaptive cruise contro about 65% of the time and in "regular" mode.

Thanks

Which Nav? The Ultimate or the Tech/Sig package one, as they are different? On my Ultimate, you can set it up (a set up menu option) to give you route options upfront, but I'm not sure if you can do it ad hoc while already following a route without the traffic warning - I'll have to check...

 

[Ernie3647]

Went on a 500 mile trip & found the navigation system doesn't seem to measure up to the rest of the car. Main quirks that hit me are:

1. If you are on a highway, it seems every 5 to 20 miles the the "voice" will tell you to "keep to the right" even though you will be on a straight road for at least 100 miles.

2. related to #1 above, it also can't tell you to stay straight for the next 100 miles but recalculates and only goes 5 to 20 miles before "next turn/ stay to the right" which is really still going straight on the highway.

3. If nav tells you there is "traffic ahead" I think it can give you alternative routes (I think I was able to do this once - but couldn't find it again). Can you request alternative routes without first having a "traffic ahead" warning?

BTW I averaged 29 MPG on the 2015 tech V6 using adaptive cruise contro about 65% of the time and in "regular" mode.

Thanks

See if this helps.
Verbal command "Route Options" or "Find faster Time Route".

 

[harwax]

Sorry, didn't realize there was a difference in Nav systems. I have the tech package.

 

[GenesisCaptain]

1. If you are on a highway, it seems every 5 to 20 miles the the "voice" will tell you to "keep to the right" even though you will be on a straight road for at least 100 miles.

2. related to #1 above, it also can't tell you to stay straight for the next 100 miles but recalculates and only goes 5 to 20 miles before "next turn/ stay to the right" which is really still going straight on the highway.

This is 100% consistent with every other nav system I have used with the big three map data sources: Navteq, Google, and TeleAtlas. They are all a little different, but as Pahaska noted, it is more a function of the map data.

I am pretty sure that Hyundai uses Navteq data. Garmin does too, and my 2012 Hyundai gives the exact same "keep left" or "keep right" instructions as my Garmin when used side-by-side. Plus, my old BMW, which used both Navteq and TeleAtlas data (in different years of updates) gave the very same instructions in the same places.

Ditto Google Maps and Apple Maps. Google uses their own database and Apple uses TeleAtlas. Both do the same things in similar places.

 

[Seattle Genesis]

I noticed on the 2015 nav system it displays the road sign for speed limits and it amazingly changes on the display as you drive by the sign. Crazy. I wonder if the DOT tags those signs with GPS location when the stick them in the ground. That way the nav system has that location in its system and when you hit that certain location the speed limit sign changes. Pretty amazing stuff. Would have loved to be on that software project many years ago when nav systems were born.

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[Seattle Genesis]

I was on my first long trip yesterday and noticed that the nav system would not take me to the expressway to get home. I checked the settings and it had no options clicked so I'm wondering why it avoided the expressway. Need to try it out again today.

 

[ksoze]

I noticed on the 2015 nav system it displays the road sign for speed limits and it amazingly changes on the display as you drive by the sign. Crazy. I wonder if the DOT tags those signs with GPS location when the stick them in the ground. That way the nav system has that location in its system and when you hit that certain location the speed limit sign changes.

I would guess it is hardcoded in the nav maps database.

On some BMW's and in parts of Europe, the nav systems can read the speed limit signs from a camera on the rearview mirror, compare to the map data and current weather and then display them real time in the HUD (due to better standard sizing and placement of the signs in Europe).

 

[Pahaska]

I was on my first long trip yesterday and noticed that the nav system would not take me to the expressway to get home. I checked the settings and it had no options clicked so I'm wondering why it avoided the expressway. Need to try it out again today.

If it set to "shortest route", it will even take you off the freeway onto the frontage road where the freeway curves and the frontage road on the inside of the curve is a bit shorter and then back on the freeway at the next entry ramp. Most GPS do that unless "fastest route" is selected.

 

[Pahaska]

I found an odd quirk in the routing. If I say "Go home" in the next town, 13 miles from home, it will give me a very rational route, the way I would drive home without any guidance. If I drive three miles toward home on that same route and then say "Go home", it will route me through a subdivision on a route that is probably 100 yards shorter but has multiple stop signs and a 30-mile limit.

If I reverse the route, I get the same anomaly; the routing varies according to where the route is started. If I start the route at home, I get one route. If I simply exit the subdivision and then start the route, the routing changes even though I am on the original route

I find it very odd that the GPS chooses two different routes depending on where it is started.

 

[Seattle Genesis]

If it set to "shortest route", it will even take you off the freeway onto the frontage road where the freeway curves and the frontage road on the inside of the curve is a bit shorter and then back on the freeway at the next entry ramp. Most GPS do that unless "fastest route" is selected.

I guess I don't remember it happening that way on the 2012 nav system. It would always try and put me on the freeway unless I check the avoid freeway button. Nice change I suppose. I also noticed that zooming in and out are in opposite directions for the knob. LOL.

 

[italiabrain]

I found an odd quirk in the routing. If I say "Go home" in the next town, 13 miles from home, it will give me a very rational route, the way I would drive home without any guidance. If I drive three miles toward home on that same route and then say "Go home", it will route me through a subdivision on a route that is probably 100 yards shorter but has multiple stop signs and a 30-mile limit.

If I reverse the route, I get the same anomaly; the routing varies according to where the route is started. If I start the route at home, I get one route. If I simply exit the subdivision and then start the route, the routing changes even though I am on the original route

I find it very odd that the GPS chooses two different routes depending on where it is started.

If I had to guess the system is misidentifying where you currently are when this happens. I haven't had this experience with the Genesis Nav yet, but I've seen it on my phone's GPS. Sometimes, especially if there is a parallel road inside a neighborhood very nearby it will act as though you're on that road and give you directions from there.

 

[italiabrain]

Here's one. Has anyone else noticed that the Nav sometimes rounds off the address of a destination? Usually this is totally harmless and would take you to a place on the same block, but the rounding doesn't seem intelligent. When rounded to the nearest block numerically (not geographically) it once put me on the wrong fragment of the correctly named road. A dead end fragment in a not-so-great neighborhood. It was probably only 300yds off in reality, but the road route was nearly a mile.

 

[GenesisCaptain]

Has anyone else noticed that the Nav sometimes rounds off the address of a destination? Usually this is totally harmless and would take you to a place on the same block, but the rounding doesn't seem intelligent. When rounded to the nearest block numerically (not geographically) it once put me on the wrong fragment of the correctly named road. A dead end fragment in a not-so-great neighborhood. It was probably only 300yds off in reality, but the road route was nearly a mile.

That is probably a flaw in the map data. Mapquest also uses Navteq data. Enter the address in Mapquest, and see if it drops the pin in the same place as the car's nav. If so, post the error at Navteq. They are pretty responsive in fixing map data errors.

 

[italiabrain]

That is probably a flaw in the map data. Mapquest also uses Navteq data. Enter the address in Mapquest, and see if it drops the pin in the same place as the car's nav. If so, post the error at Navteq. They are pretty responsive in fixing map data errors.

While this may be true also it's not the effect I'm referring to. There are literally different address numbers between where it's entered and the destination display and the HUD.

 

[Pahaska]

Here's one. Has anyone else noticed that the Nav sometimes rounds off the address of a destination?

The databases do not contain continuous house numbers. That would require totally impractical amounts of storage. Instead, numbers are assigned at intersections or road ends and the GPS interpolates for numbers in between. That is why the destination will often be a house or more before or past the address entered. This results in little error within a city block, but can be far off in rural areas, especially with big lots or on roads that are not continuous..