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Hybrid Vehicles Toyota Highlander Hybrid Toyota Highlander Hybrid
3943 messages, Last post on Nov 02, 2009 at 9:19 AM
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I want to know that how do the tire pressures display in Mult Information Display. What indicate which? I maen the top tire pressure in display represent Front Left Wheel or what? If somebody know, please share with me. Thanks. |
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| I believe there is no correlation. This must be because the data comes from a coded transmitter on the tire, which could be moved to another location. | |
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That mean the tire pressures display in the Multi Functional Display randomly and if there is some warning about tire pressure we may not know right away which tire is going bad. And it's hard to read spare tire pressure with tire pressure guage. Anyway , thanks for your reply Stanwagon. |
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Replying to: stevedebi (Mar 03, 2008 1:10 pm) 2. I can tell at times that the ICE is powering the front wheels while in reverse.
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Replying to: monte8 (Mar 12, 2008 11:31 am) |
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Replying to: monte8 (Mar 12, 2008 11:31 am) Just because the ICE is running does not mean it is providing power to the rear wheels. Take a look under the vehicle and see if there is a transfer case attached to the rear wheels, or if there are electric motors. I suspect you will find the latter. The HSD is a completely different system than the transmission / engine used in the conventional HH.
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Replying to: stevedebi (Mar 13, 2008 11:22 am) Of course the ICE does not drive the rear wheels, there is no transfer case or drive shaft to the rear. However, that does not mean that the ICE cannot power the front wheels in reverse. How would you drive this car if the traction battery pack failed (something I hope does not happen for 200K miles or so)? Do you think Toyota would produce a vehicle without the ability for the ICE to back the car? Or even more simply, if the traction battery is below the cutoff point for use (40% charge?), the ICE would power the front wheels. |
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Replying to: monte8 (Mar 14, 2008 8:28 am) If the traction battery is way low (two red bars on the energy flow display, 25%), the ICE will charge the battery and power the car simultaneously. In some situation, the ICE is so busy powering the car, it takes forever to recharge the battery. This has happened often to us on uphill climb either at low speed or high speed. Last night, we ran the charge down to two red bars and had to reverse uphill to drop off some gear. As I did the reverse, the ICE stayed on but the energy flow diagram stopped showing any trace of power flows. Identical to what it does when I shift into NEUTRAL. That means one of two things: (1) ICE is driving the front wheels in reverse. If so, why not just show it as it always does when the ICE drives the front wheels in forward motion and charging at the same time? (2) ICE is powering front wheels and battery pack is powering the rear wheels in reverse. Again, this is no different than when we are moving forward and climbing a steep grade at low speed. The ICE boosts the front, the battery pumps power to the rear. It has shown this countless times. (3) ICE is charging the battery like mad, the battery is powering ALL FOUR WHEELS like mad to go in reverse. There is no way to show this on the display without erroneously showing that the ICE is powering the front wheels. So the best approach is to show nothing. I am 90% sure that (3) is the case. Only the battery pack powers the four wheels (AWD version) in reverse. Not sure why this is such a critical topic though. I am not here to argue the point, just trying to provide observation. As long as the car will reverse nicely, I won't care if the ICE does it or the pack. Cheers!
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Replying to: cdptrap (Mar 14, 2008 8:54 am)
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Replying to: volkov (Mar 14, 2008 10:28 am) Coincidentally, that was precisely what we did last night. Had to back a 4+ x 12 flatbed trailer uphill to unload. We had to pull it up a steep switchback that gains about 500+ ft in 0.2 mile first, it ran on battery where it could and that depleted the battery to 25%. About 2000 lb gross for this load. We have gone as high as 2500 lb but that is max because our old trailer cannot handle more. The reverse uphill at the end was not too bad, it gains only about 3 ft for the length of the car and the trailer. I have never tried reversing it up anything steeper though because this old trailer is just long enough to make me uncomfortable. You can check the torque specification and see what it says. For a 4x8 trailer, I imagine the loaded gross will be around 1500 lb? if so, that is well within the car's spec. I will strongly suggest using good trailer tires if there are slick grass. We use GY Wrangler but whatever brands that provide toughness and strong traction will do. For the HH, AWD is absolutely essential in this case because I want powered traction on all wheels especially where we work. It is often loose gravel, dirt or tall slick grass. Good SUV or truck tires is a must. Van-type tires will just spin on tall grass and slide downhill. If your HH stock tires are van tires, best to replace them ASAP. We had to do that to ours. Hope this experience helps a bit. |
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