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Lexus RX 400h Navigation/Bluetooth Problems

56 messages,  Last post on Sep 23, 2009 at 3:33 AM

You are in the Lexus RX 400h Maintenance & Repair Forum. Your Host is pf_flyer

What is this discussion about? Lexus RX 400h, Lexus, Navigation System, Hybrid Cars, SUV


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#2 of 56
GPS FLAWS by fbrown
Jun 19, 2006 (6:25 pm)
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I have a problem getting to the correct address. When the information is entered the system will take me near the address but never completely there. I am always about 1 block away but the system says you have arrived long before I get there. When I press MAP the address given never matches the address I am in front of. The dealer repair service claims this is OK. I never had this problem with my Mercedes SUV. Anyone else with this problem?
#3 of 56
Re: Destination on GPS [nigh] by gagrice
Jun 19, 2006 (6:56 pm)
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Replying to: nigh (Jun 01, 2006 12:55 pm)

I think that is for a nine digit zip code. 92032-1001
#4 of 56
Navigation Woes by vdoc
Jul 23, 2006 (11:53 am)
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I didn't use my navigation system much during the first 6 months I had the car except maybe for looking up restaurants. After I started using it more regularly I had several instances when I entered the exact address and either the system guided me entirely in the wrong direction or could not locate the address at all. These addresses were not in newly developed areas. They were in well established neighborhoods (30-40 years.) Some addresses it couldn't find were actually stores in strip shopping centers.
Last week I needed to pick up someone at National Car Rental at Miami International Airport, about 10 miles from my home. I entered National Car Rental and it gave me locations in Miami Beach (15 miles) and Ft. Lauderdale (35 miles.) I then tried entering it as National Rentacar. Again it gave me the same two plus Melbourne, Orlando, etc. (100's of miles away. No MIA listed. I went over to the dealer and showed them the problem I was having as well as some of the other locations it couldn't find. They said that the system was really sensitive and if you don't enter the name or address exactly right, it will not find it. WE finally did find the National Rental Car in Miami. Here's how we did it: Category - Travel-Rental Cars - National. National Rental Car was listed in the system as National-Miami International (nothing about cars, rental, etc.) We also looked for a chain grocery across the street from the dealer. It couldn't find it but it found a dozen other of the company's stores within 25 miles. We then went back and put a hyphen in the name and it found it. Point is, if I am spelling the name wrong why did it find the other stores? It's all really absurd. All of these instances were in and around my home town. If I ever got into an area where I was really unfamiliar (that's when you need the system) I might really be in trouble. Has anyone else experienced this kind of behavior?
#5 of 56
Re: GPS FLAWS [fbrown] by dadcat
Jul 23, 2006 (5:47 pm)
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Replying to: fbrown (Jun 19, 2006 6:25 pm)

That is what I observe too, but it is normal for the Nav system to give you advance warning that you have arrived, so you don't go past. If you glance at the map when it says you have arrived, you should see that the target address has not been reached yet.
#6 of 56
Re: GPS FLAWS [fbrown] by chops57
Sep 04, 2006 (10:42 pm)
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Replying to: fbrown (Jun 19, 2006 6:25 pm)

My GPS also does this and I think it's the way it's supposed to be and this is fine for me. This way, you have time to move over right or left. If you look at the graphical display, it should still be accurate and show the target up a little bit farther.
#7 of 56
Navigation DVD Version by eabu
Oct 24, 2005 (7:47 am)
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What is the current navigation DVD version? I have version 4.2 and we bought our car in August 2005. We live in an area with new developments and the dvd info is almost useless here.
#8 of 56
Re: Navigation DVD Version [eabu] by navguy1
Nov 23, 2005 (3:42 pm)
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Replying to: eabu (Oct 24, 2005 7:47 am)

The new areas take up to a year to get added to the map database. Once the area has been added they usually test drive the roads to verify the geometry, turn restrictions, etc. Getting turn-by-turn and voice directions is no easy task, and requires lots of resources to create a system that is safe to use.
#9 of 56
using the navigation by bobgail1
Dec 20, 2005 (6:18 am)
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When I give it a vocal command, "home", the navigation responds that it cannot do it and I should delete the "poi's"
I never entered any poi. What am I supposed to do to get it to navigate to my home? (Home is programmed)
#10 of 56
Re: using the navigation [bobgail1] by katzjamr
Dec 20, 2005 (2:53 pm)
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Replying to: bobgail1 (Dec 20, 2005 6:18 am)

if your home is programmed then in the lower left hand corner of the screen will be a small icon like a flag symbol, if you push that it will program a way to home.
#11 of 56
Re: using the navigation [bobgail1] by dadcat
Dec 23, 2005 (5:36 pm)
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Replying to: bobgail1 (Dec 20, 2005 6:18 am)

Of the many times I have tried to say "Home" to the RX400h Nav, it has only worked perhaps 1 out of 10 times. I have also tried varying the pronuciation of home to Homeee and Homma with some limited success. What has worked is to program in a Quick Access point for the home address and say to the Nav "Quick Access 1" instead of "Home" The quick access points seem to be understood by the Nav in better than 9 out of 10 tries.

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