Last post on Dec 05, 2013 at 9:37 PM
You are in the Toyota Highlander
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Toyota Highlander, Transmission, SUV
#46 of 315 2005 Highlander Hesitation
Jul 17, 2006 (3:47 pm)
Hesitation began to show up immediately after purchase on 4/06. Dealer said at first nothing could be done. Later after several meetings the dealer found the computer flash fix. This did not solve the shifting or transmission hunting at Interstate speeds and hunting with speed control on. We went to arbitration with Toyota and dealer, all to no avail. Their rep said he had the same problem with his new 2005 Avalon and another Toyota factory rep had the same problem with her 2005 Highlander. According to the rep, Toyota is not addressing this problem 1) Because this Highlander model will be changed soon,2)Lack of complaints, 3)these vehicles are made to run this way and 4)the computer controls have to learn the driver's driving habits. What nonsense from a major manufacturer. This problem began with the 2002 Toyota (5-speed models-Camery, Highlander,Sequoia, etc.) and still persists. Needless to say I will never purchase another Toyota and am informing others of this poor design and response from the Toyota Corporation. Good luck with getting anything positive from Toyota on this problem. Oh,What A Feeling Toyota. Oh,How They Hesitate and Deny-Toyota.
#47 of 315 2003 Highlander trans fluid change
Jul 17, 2006 (4:48 pm)
I have a 2003 HL with 35,000 on it, my first Toyota vehicle I've owned. I want to change out the transmission fluid as good preventative maintenance but the manual does not recommend it until 60,000 miles. Does this sound like an extended period of time to anyone else? I've always changed the fluid and filter for all my past automatic transmission vehicles. The owners manual states to inspect the fluid at 30,000 but not to change it until 60K. Has anyone changed out the trans fluid already and does it have the filter inside the trans? One last question, does it have the type of gasket that can be used again?
#48 of 315 Re: 2005 Highlander Hesitation [airmaxx]
Jul 20, 2006 (8:03 am)
I believe Toyota's new slogan is:
#49 of 315 Re: highlander transmission problems [izzo233]
Jul 24, 2006 (4:43 pm)
I have a 2 month old Highlander and have the same problems that you have mentioned. I have not contacted the dealer yet, could you please let me know how you made out at the dealership regarding your problems, what did they do for you are your problems resolved?
#50 of 315 Re: highlander transmission problems [djj7]
Jul 24, 2006 (6:29 pm)
I began dealing with this problem several months ago. The dealership couldn't solve the problem. They put me in contact with a Toyota Tech Specialist. Nothing has been of any help. Both were more interested in proving that the car was "normal", which is the flipside to proving I'm a nut who's imagining things. My alternative at this point is to either go through arbitration or live with the problem. And it is a real and serious problem.
#51 of 315 Wondering aloud...
Jul 25, 2006 (6:50 am)
Let's assume that the engine/transaxle really is "learning", somehow trying to predict what the driver's next "move" will be and acting accordingly.
Back long ago, say in the fifties when Ford starting building more cars with automatic transmissions, many of us learned that if we wanted the transmission to upshift more quickly than otherwise, normal, we could just momentarily lift the accelerator pedal slightly.
There are now lots of indications that this delay/hesitation "symptom" has something to do with the way we "treat" the accelerator pedal.
Suppose, as the driver, I'm looking ahead and see a stop sign coming up, as a rule I would lift the accelerator pedal completely. That should be a "message" to the engine/transaxle ECU that I DO NOT wish to enter cruise mode, rather that I either wish to coastdown to a lower speed or come to a full stop.
But now lets suppose that just by happenstance I keep just the slightest level of pressure on the accelerator pedal during the time I'm coasting down to stop at the upcoming intersection.
Might the ECU just "sit" there in a "what do I do now" stage or would it look to my past driving history for a clue? My guess is that it would "upshift", thinking that my real intent was to enter "cruise mode".
Quite a number of posters have indicated that foot placement seems to help to alleviate this symptom. The higher you place your foot on the accelerator pedal the more foot pressure it will take for a given position of the throttle. Obviously that would make it more difficult to "feather" the throttle, hold the accelerator in a slightly throttle open position.
High foot placement would therefore likely result in less "confusion" on the part of the engine/transaxle ECU.
So, for those of you with these experiences, try this.
When, or while, you are certain you wish to come to a full stop, remove your foot fully from the accelerator pedal. Do the same when you have the need to slow, say in the merging situation, lift the throttle completely until or unless you reach the point wherein you make the decision that actual acceleration is needed.
And let us know....
#52 of 315 Re: Wondering aloud... [wwest]
Jul 25, 2006 (5:45 pm)
First, we need to realize the major difference between this transmission and others, especially past: When an automatic transmission moves from one gear to the next, the gear that it's leaving doesn't "let go" until the gear it's entering has control. Not true with the Highlander trans: Between gears, the trans goes into neutral. If all is working well, the driver isn't aware of the fleeting moment that the car is out of gear. Not the case with the problem I - and others - are experiencing: There is a long and very noticeable delay between gears. And worse: the delay isn't consistent. It is especially erratic in city driving conditions, and would have to be considered unsafe under certain conditions, when you are trying to accelerate, and all you get is engine rev. Sure wish your idea was relevant to my problem. But it isn't.
#53 of 315 Re: highlander transmission problems [frogg]
Jul 25, 2006 (6:17 pm)
frogg-I posted awhile ago that I made the "hesitation" complaint back in mid-May with the local dealer from whom I get service. They found the TSB, spent a little over an hour with it and "tech re-programed ECM per TSB" (language from the repair order). It has worked PERFECTLY since. Unfortunately maybe you and others need to find a dealer who "cares" and knows what to do. Wish ya luck!
#54 of 315 Re: highlander transmission problems [webgood]
Jul 26, 2006 (5:11 am)
I appreciate your help, but I've been through the re-flash twice. It helped, but only for a very short time. Seems it helps in some cases, but not others.
#55 of 315 Re: highlander transmission problems [frogg]
Jul 26, 2006 (1:37 pm)
After my ECM was reflashed, I thought I was seeing a further problem. Then circumstances forced me to accelerate at maximum power from zero to 100kmh (62mph) rapidly in succession.
Transmission behavious changed rapidly. Might be worth trying this and shifing to a premium fuel from a reputable supplier (Shell etc.)