Last post on Jan 18, 2013 at 11:23 AM
You are in the Toyota Sequoia
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Toyota Sequoia, Navigation System, SUV
#19 of 27 Calibrate ???
Jan 07, 2010 (11:25 am)
GPS systems do not have to be 'calibrated' and they do not get 'lost' unless the antenna is blocked. They navigate by satellites overhead, and it is very seldom you have to do anything. If you are following a planned route and the GPS misses a turn or directs you down a non-existent road, the unit is not 'lost', it just doesnt have the road on its map base, or the map is out dated. However the GPS knows where it is located - it doesnt know where the road is, thats all. This happens because there is a 2-3 year lag on map updates.
Also, GPS units do not get any info from the vehicle speed sensors etc. - they calculate speed and distance by measuring movement against the satellites.
#20 of 27 Re: Calibrate ??? [UncleJay]
Jan 07, 2010 (4:00 pm)
UncleJay, Our Toyota GPS system gets lost in relation to the map display. While GPS will continue to track us, it will not be correct in relation of where it shows us to be on the map.
Totaly worthless. Our kids Cell phones GPS will track their position and keep them oriented correctly on the map at all times and never gets lost.
Our Toyota GPS gets disorinted to the map almost every time we go anywhere and is totally useless.
Pretty disappointing for $5,000 option VS a cheap cell phone using a free app.
Jan 08, 2010 (8:12 am)
Sorry to hear that rtribble. it looks like the nav system is mounted in a standard double DIN sized opening, so actually you could replace it - with a Pioneer unit for example (Did that in my Altima very happy). That would cost about $ 1400 with installation.
You say that the GPS does not match your position on the map, I wonder if reloading the map DVD might help (it can be ejected using the INFO function and dropping the face plate it is below the CD slot).
You might also check if the correct lat-long is being located, which unfortuantely will require either a second GPS or a topo chart to verify.
#22 of 27 Re: rtribble [UncleJay]
Jan 08, 2010 (8:49 am)
UncleJay thanks for the input and I would advise any potential buyer to consider an aftermarket GPS as you suggest.
I have the Platinum model and everything is tied through that GPS system that controls a lot of other functions outside the GPS so I wouldn't want to loose those other functions by removing it.
A cheap little Garman stand alone hand GPS will do the job but not as convenient as in dash.
I can and do re-calibrate my Toyota GPS by starting from a precise known position, but of course if I always knew precisely where I was I wouldn't need the GPS to start with.
Our kids go with us a lot and if we need to know where we are they just turn on their I Phone and it locates us instantly and has never gotten our position disoriented to the map.
#23 of 27 setting up 2010 Sequoia Nav System
Jul 16, 2010 (4:21 pm)
I just purchased a 2010 Sequoia from an auction. Only 8K miles. In the photos of the vehicle, the head unit was active and at the home page.
When the vehicle was delivered the head unit was on but the screen was black and it said NO DVD, INSERT MAP DVD. The MAP DVD for the 2010 Sequoia came today. However, when loaded into the lower slot, the head unit did not activate and I could not set up the Nav. Additionally, no other functions work either, such as back up cam, FM, XM, AM, or regular CD as the MAP DVD must be installed for everything to work.
Am I just missing something in the set up. Any function key that needs to be set or certain code or button order that needs to be pushed.
Also, you can email your responses to mjbarkcomcast.net AND to gtrlitaol.com
#24 of 27 Re: setting up 2010 Sequoia Nav System [mjbark]
Jul 16, 2010 (7:45 pm)
Please don't include email addresses in postings to the Forums. Thanks!
SUVs and Smart Shopper
#25 of 27 Navigation system Generation
Feb 12, 2011 (6:53 am)
Does anyone know how to determine what generation your navigation system is? I own a 2008 Sequoia Platinum.
#27 of 27 GPS Issue, Speed Sensor Wire
Jan 18, 2013 (11:23 am)
My 2012 Toyota Sequoia came with the standard head unit. So I bought an OEM Nav unit. I was able to get everything plugged in and working except the voice guidance gps. It just says drive to the highlighted area to start voice guidance.
I was told I need the speed sensor wire plugged into the unit but I have no idea where it is or where it goes.