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Toyota Highlander Maintenance and Repair

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#2045 of 4696 Hesitation is a Safety Hazard by scoti1 Nov 29, 2004 (5:25 am)
Just because you aren't having a problem that others are having, please don't try to minimize the experience. Pilot130, I find it appalling that you mention resale values in one of your replies, implying that this would be a concern to some if people who have this problem report it (#2036 where you say "I also don't think it's likely resale values will be affected one way or the other"). Read back through several pages of reports here and it is OBVIOUSLY a safety issue to those who experienced it and to other drivers who find themselves in the postion of trying to avoid crashing into a hesitating SUV. These reports are not about people irresposibly passing other cars as you accuse, but is about people making turns and hesitating in the middle of turn. If you don't complete a turn, you could be stranded in the middle of an intersection facing oncoming traffic. There are a myriad of other situtations where a safe driver could be placed in a hazardous situtation due to hesitation as described in reports here.   Regardless, there is nothing lost if those who experience the hesitation report their problems to appropriate safety agencies. These agencies can then determine for themselves how much of a hazard this presents.
#2046 of 4696 Re: 05 AWD V6 [beemerman2k] by scoti1 Nov 29, 2004 (7:36 am)
Replying to: beemerman2k (Nov 24, 2004 9:01 pm) Apology to Pilot130 for attributing the resale value statement to you. It appears that beemerman2k is who mentioned it as an issue (and your statement was in response to this). I agree that it needs to get resolved quickly to avoid potential injury or harm, but resale values should not even be a consideration when safety is at stake.   I have been reading up on this problem here and would suggest that the naysayers search this forum using the word "hesitation" to read some of the history on this. It has been an issue when merging into high speed traffic (such as merging onto an interstate), when pulling into a passing lane to pass a slow moving vehicle, when making turns, and so on. It seems like it is mostly reported when traveling at a slow speed then needing to accelerate. There are also some suggestions as to cause, one being that it occurs in those vehicles with "fly” or “fly wire” acceleration.
#2047 of 4696 Hesitation a Safety Hazard? by pilot130 Nov 29, 2004 (8:27 am)
No disrespect intended Scoti, but it could be said you're conjuring up scenarios which are unrealistic. I don't believe that rear end scenario you suggest is much of a likelihood under any circumstances. Furthermore, I don't intend to get into any argument over what's a big or little issue here, all I've done is state my opinion that this hestitation thing is unusual and rare, plus doesn't represent any safety concerns for those few who might experience it. So I'll just leave it at that. If you feel the need to editorialize the issue, go ahead.
#2048 of 4696 Margin of safety..... by wwest Nov 29, 2004 (8:32 am)
I was trying to point out exactly that!   If 99.99% of the time the hesitation doesn't occur then you adjust your driving style accordingly, always "judging" a good margin of safety before pulling out in front of a line of on-rushing traffic.   Then suddenly that remaining .01% reaches out and bites you in the behind.   Since I couldn't reliably predict when my rear wheels might slip on my 92 LS400 the simple thing to do was disable it each and every time I started the car.   Lexus Nav....   The Lexus service manager proved that the problems I have experienced have to do withe the base Nav routing computation, not the map data or lack thereof. Exists on everything up to and including 04 model.
#2049 of 4696 Lexus Nav Problems--Wwest by pilot130 Nov 29, 2004 (8:44 am)
It may be that the system you have isn't computing correctly,and I hope it's nothing more than that. I can tell you from my aviation experience (I have 3 on board GPS receivers)that if databases aren't updated regularly to adjust for constant changes in magnetic North, errors will be there, and get worse over time. Two of my units are current, one isn't(an older unit I keep as a spare), and I can get differences of up to 15 miles in a 200 mile trip.
#2050 of 4696 Pilot130.... by wwest Nov 29, 2004 (11:39 am)
During my flying time, ~1957 to 1995, I think I relied mostly (solely??)on VOR, variable Omni-range, and/or TACAN. I don't remember EVER trusting the magnetic compass except for secondary reference.   What airplane do/did you fly, or how do you fly it such that you have need to rely on magnetic directional information?   I suppose VFR on top....??
#2051 of 4696 Nav system by spencer327 Nov 29, 2004 (2:06 pm)
I am interested in this, discussion about Nav system. 04 HL LTD with Nav. I am questioning the input about magnetic field errors. I was under the assumption that position data came from the radio sgnal from the GPS satellites.This triangulates your position. The DVD compares the position location and places you on its internal maps, all references from the system are based on these two sources of info.Why does magnetic field enter ito this? BTW, love the NAV, perfect?NO Darn good?YES
#2052 of 4696 Wwest by pilot130 Nov 29, 2004 (2:12 pm)
I own a Cessna P210. Great airplane--fast, carrys a good load, and a great IFR platform. I have 2 VORs as well as a Loran and the GPS units I spoke of, one VOR which includes localizer and glideslope for ILS approaches (it's actually an HSI). Both are coupled to an autopilot. VOR's have very little to do with magnetic compasses. All they are is fixed ground based navaid transmitters which provide directional bearings and DME info (distance measuring equipment--my DME unit is a King KN64). Tacan is the military version of a VOR. GPS is a satellite based navaid, and GPS receiver databases are preprogrammed based on maps and charts at a given time. As you no doubt know from your ground school curriculum, VFR charts are only valid for a three month period, and IFR charts for a 28 day period. the biggest reason for this is magnetic deviation--magnetic North is not stationary. I still use VORs, but GPS units approved for IFR are much quicker and easier-- they do all the calculating and triangulation for you. GPS units have only become approved for IFR use in the past few years. And yes, a GPS satellite will give you your position relative to the ground, but if the reference points pre programmed in your GPS receiver have moved (magnetic deviation), your position will be off with respect to the pre programmed map or chart your GPS receiver contains. Replies to this message: spencer327 (Nov 29, 2004 3:49 pm) spencer327 (Nov 29, 2004 4:06 pm) spencer327 (Nov 29, 2004 6:01 pm)
#2053 of 4696 Re: Wwest [pilot130] by spencer327 Nov 29, 2004 (3:49 pm)
Replying to: pilot130 (Nov 29, 2004 2:12 pm) are you saying the dvd map coordinates are fixed in time when it was manufactured, where the GPS signals are constantly updated for magnetic deviation,hence the deviation discrepancy with older DVDs. I am going to check and see how much the position would be off at my lat/long from the DVD date interesting !
#2054 of 4696 Spencer327 by pilot130 Nov 29, 2004 (3:58 pm)
Bingo!! Not quite that simple, but close enough for government work!!

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