Last post on Dec 06, 2013 at 7:35 PM
You are in the Toyota Highlander Hybrid
What is this discussion about?
Toyota Highlander Hybrid, Brakes, SUV
#130 of 139 Regen braking vs OAT.
Nov 21, 2010 (10:58 am)
On the hybrid Escape series Ford uses a regen braking control technique wherein the level of regen braking allowed before transitioning to combined regen and frictional is modified as a function of OAT. The colder it gets the less regen braking will be allowed before frictional braking is included.
Your HH might well have the same feature. And/Or more likely the "gain" used to detect impending lockup is increased as the OAT declines below, say, 35F.
#131 of 139 Upcoming Technology, Curve Control.
Nov 21, 2010 (11:02 am)
The new FWD or F/awd Ford Explorer has a new technology they refer to as Curve Control. It seems to operate by dethrottling the engine and the use of braking if the system decides that you're driving to fast for the road curvature.
It'l be interesting to know how well that works in real life conditions....
#132 of 139 Re: Hi Hy Brake issues [mimers]
Nov 21, 2010 (11:02 am)
Forgot to mention that I did post the incident on NHTSA months ago.
#134 of 139 Re: yotacro [yotacro]
May 17, 2011 (7:19 am)
I agree with you. I have called toyota who tell me to see a dealer. Why, so they can charge me $100 to tell me nothing is wrong with my vehicle. I can't tell you all how happy I am to have found this forum so I know I'm not crazy.
In my experience the slight shift of acceleration or lurching forward happens at less than 15mph and maybe at even less than 10mph. It is just very surprising and disturbing when you have to "all of a sudden" add extra braking power as you are coming to a stop.
#135 of 139 Hybrid slip regen
Sep 23, 2011 (6:53 pm)
Contacting Toyota or Gov has proved useless in spite of similar problems on other models of Toyota.
They will only pay attention to a class action suit unless there deaths (see acceleration problems).
Let's get together and sue them and maybe we'll get their attention!!
#136 of 139 Re: yotacro [utschy]
Sep 24, 2011 (8:37 am)
That "lurch forward" is the result of the coastdown full fuel cut technique being disabled due to the road speed now being too low to sustain the engine above stall.
During coastdown periods the engine is starved of fuel, FULLY starved, and the transaxle is sequentially downshifted in order to keep the engine turning over above the point of stalling. Once a "too" low speed is reached fuel flow is restored and the transaxle is upshifted. That last bit is why you feel a "lurch forward", due to the "relaxation" of engine compression braking.
#137 of 139 Do not buy it
Jan 26, 2013 (10:00 am)
I drove 2009 Highlander in Oct 18 2012 at 2:30 from the dealership,and at 12:00am Oct 19 2012,it was back in the dealership parking lot.I hit the side barrier and no air bag were enagged, as i side the side of the truck which kept on moving in spite pressing the brakes.
The truck slipped in black ice at 60 kmh, and failed to be controlled as the brakes did not even slow down it as there were dry patches too,but i did not have winter tires then.I got this truck repaired on Dec 18th 2012.
The highlander was in the dealership body shop for two months.
After driving for three weeks,Jan 22nd 2013, i had a second accident this at the speed of 25kmh at the play ground zone as the second car ahead stopped with no apparent reason,but my brakes failed again,this time had to apply the brakes hard as the low end delivery truck did and the highlander brakes failed even after pressing hard.
My first cost for the repairs were paid by my insurance and it was $15000
#138 of 139 2008 Highlander Hybrid Brake Problem
Dec 06, 2013 (7:26 pm)
My Highlander has 68,349 miles and I've owned it since it was brand new. This week my brakes have failed to work when shifting from park into gear while brake is fully engaged. Warning lights flash but don't stay on long enough to read. Brakes then worked within a couple seconds and the car operated normally until shifting gears. Problem is escalating however, because now the brakes stop working for a second or two, intermittently, when driving. My brake fluid is normal. I'm bringing it in to dealership tomorrow but ask that anyone experiencing brake issues report them immediately to the NHSC. They investigate after 100 filed complaints and although their are hundreds of blogs reporting this issue, as of 12-5-13 I saw only 12 complaints filed. Mine should be up in the next 72 hours.
#139 of 139 Re: 2008 Highlander Hybrid Brake Problem [lamovies]
Dec 06, 2013 (7:35 pm)
I meant to say that I recommend filing a complaint online with the National Highway and Transportation (NHTSA). Please excuse the error.