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from what i have read, the high rev. hunting for the right gear at low speeds and hard down shifting has been the same in the 2009 and newer trucks. I still blame the down hill assist control.
I haven't heard any problems with the trucks that Don't have this option, but I could be wrong.? Keep us posted
I'm surprised that there isn't an acknowledgment of this TSB by Toyota when folks complain & are given the party line that this is 'normal'. My guess is there has to be something really wrong with the design. The transmissions aren't this way at delivery (at least mine wasn't) and seem to start developing after 300-400 miles in my case. I used to do some programming (not transmissions) and it wouldn't seem hard to do a software patch that endlessly passed the original factory parameters back to the ECU w/ every new start rather than the idiotic 'learning' profile. Must be some underlying firmware/hardware issue that would be horrendously expensive for them to address. Another possibility is all their emissions certifications were done w/ the current configuration and they can't/won't do all that over again.
I seriously doubt Toyota is ever going to address this issue & am planning on dumping my 2009 (now w/ 2,500 mi) as soon as I have a convenient opportunity to do so. I will never, never, never, never...(see a pattern here) buy another Toyota product. Not a smart way to keep moving forward.
I've now got approx. 900 miles on the vehicle, and it seems the problem is getting worse.
I was hoping that it was just something having to do with the fact it was new, and would get better. Not going to happen.
I'm really disappointed after reading that so many other people are having the same problem.
thanks
I was looking to trade this in if Toyota repair this.
Thank you, and I'll be sure to post my findings after they hopefully correct my truck.
Drive by wire was created for emission purposes, stops us from creating a sudden rich mixture situation that could pollute. My Tundra has it and it is definitely not smooth if you slow down without completely stopping and then accelerate again. It pauses for a millisecond then rockets you forward at a rate greater than intended. The implementation of drive by wire clearly varies by manufacturer as my 2006 Subaru Forester also has it, and while I don't like it compared to my previous Foresters with a real throttle wire, it is much more refined and smoother than my truck.
Toyota could learn a lot from Subaru on how to treat customers, and I have doubts on whether I would buy another Toyota, despite the fact that I really like my Tundra.
Good luck to all!
When I took my new truck (that I have only a month) back to the dealership with this problem, they told me it was "normal" and they have had other people call or come in about it and that some of the cars do it as well, and to help with the problem, I should just down shift out of Drive to 4th gear. I'm sorry, I thought I just traded in my standard transmission for an automatic transmission! If anyone has any information to help, it would be greatly appreciated!