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OFFICIAL: MY22+ Toyota Tundra - Throttle Lag/Hesitation From Stop Issue(s) - T-SB-0111-22

Discussion in '3rd Gen Tundras (2022+)' started by southdunes, Apr 18, 2022.

  1. Feb 27, 2023 at 11:17 AM
    #271
    bOURNE275

    bOURNE275 New Member

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    I've been experiencing the lag issue. I had it addressed on Saturday and this is what they said (also attached picture):


    "C/S: CUSTOMER STATES THERE IS A LAG BEFORE ACCELERATION, CUST STATES HE ALMOST GOT HIT FROM BEHIND BECAUSE THE TRUCK
    STATES HE DOES NOT MOVE WHEN PRESSING GAS PEDAL. FEELS LIKE IT SUCKS IN AIR AND DOESNT MOVE, ADVISE

    PERFORMED HEALTHCHECK AND NO CODES PRESENT. FOUND TSB
    0011-22 FOR GUESTS CONCERN ON COLD CONDITION AS GUEST
    DESCRIBED HAPPENS MAINLY WHEN COLD.

    PERFORMED INSPECTIONREFLASHED TCM"


    This happened to me when i was pulling out of a parking lot. I almost got T-Boned with my wife and kids in the truck.

    IMG_5806.jpg
     
    southdunes[OP] and ryanwgregg like this.
  2. Feb 27, 2023 at 11:36 AM
    #272
    Adam B

    Adam B New Member

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    So the question is...did this fix your issue? This TSB completely changed the way my truck drives...shifts from P to D, no more throttle surging, no more clunk on start THAT WAS completely random not just cold, down shift way more frequently(improved MPG).

    Anyhow hope it was the answer to your surging.

    Cheers
     
  3. Feb 27, 2023 at 11:59 AM
    #273
    bOURNE275

    bOURNE275 New Member

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    It did not fix the issue. It happened again after I drove home.
    This is going to get someone killed.
     
    southdunes[OP] likes this.
  4. Feb 27, 2023 at 1:13 PM
    #274
    Kap1

    Kap1 New Member

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    I never had throttle delay that long on my truck, it's about 0.5-1 second max.

    TSB seemed to fix it 99% of the time but I do believe that the throttle lag starting to slowly comeback after driving for maybe 500 miles or so.
     
  5. Feb 28, 2023 at 3:38 PM
    #275
    gamecockgrad1215

    gamecockgrad1215 New Member

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    How do I know if I have this? I experience a hesitation where the battery takes over for a split second and the engine kicks in. I didn't know if this was supposed to happen with hybrids or not? Any hesitation is completely gone in sport mode..
     
  6. Feb 28, 2023 at 3:41 PM
    #276
    Adam B

    Adam B New Member

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    The TSB in discussion in not for hybrid. Yours sounds right :p
     
  7. Feb 28, 2023 at 5:52 PM
    #277
    ghunter321

    ghunter321 Trail Hunter

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    Can tuning the truck fix this potentially?
     
  8. Feb 28, 2023 at 8:20 PM
    #278
    Fxclm5

    Fxclm5 New Member

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    this sounds like exactly what I dealt with my laramie ecoD, especially noticeable at 2 on/off ramps where its sharp turns

    turned out fca had a transmission tune that limited throttle application dependent on how many degrees the steering wheel was turned

    after figuring that out, i hunted and got a tranny tune that eliminated the steering wheel angle throttle limitation, never saw those weird hesitations in middle of turns ever again - nor smoking the tires when your like 1/2 way through the turn (cuz the steering wheel started to go straight again with less rotation degrees)

    curious if toyota has some kinda tune like this, anybody go out and spin donuts yet?
     
    Black widow TRD likes this.
  9. Feb 28, 2023 at 10:13 PM
    #279
    Donas

    Donas New Member

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    Yes, at least twice my truck has started to move and then lost all acceleration for a couple seconds, both times were when turning across traffic. I surprised more accidents aren't occurring due to this.
     
  10. Feb 28, 2023 at 10:54 PM
    #280
    Black widow TRD

    Black widow TRD New Member

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    Has anyone that has this issues turned off the traction control? Just a thought perhaps it may work….
     
  11. Mar 1, 2023 at 3:53 AM
    #281
    raylo

    raylo not so new member

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    My truck is supposedly post TSB and I have had this a few times. But it doesn't seem as bad as most reports here. More like a just a fraction of a second slow responding to the throttle after some stops or rolling stops. But it is not consistent enough for me to waste time taking it to the dealer for them to "fail to reproduce" the behavior. So far, and unless it gets worse, I am treating it as just a minor quirk that I need to adapt to and be aware of.
     
  12. Mar 2, 2023 at 4:13 AM
    #282
    pyrotechnic

    pyrotechnic New Member

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    I had the TSB done and it seemed to have solved the issue. I'm now 500 miles post TSB and the truck is hesitating from rolling stops again. I haven't had any extreme issues like some others above, but just a general sluggish response and then it tries to burn your tires to the ground if you give it more throttle. It really sucks the joy out of driving it.
     
    southdunes[OP] and Donas like this.
  13. Mar 2, 2023 at 9:20 AM
    #283
    southdunes

    southdunes [OP] New Member

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    Unfortunately, this post feels like a good summation of the post-TSB experience. I'm farther along after the update and back to square one. On a bad day, my poor daughter gets motion sick in the backseat.
     
  14. Mar 2, 2023 at 12:38 PM
    #284
    trazerr

    trazerr New Member

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    This is sounding exactly like what the 3rd gen tacoma went through. Took a few years to get rid of this issue. My 2018 Tacoma has never done it thankfully. Maybe the 2024 Tundras and on will not do it as well.
     
    Eric_1980 likes this.
  15. Mar 3, 2023 at 6:19 PM
    #285
    mlive

    mlive New Member

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    Tried to have this done today as I have had the same issues as everyone else on all the threads...they hooked it up and said that my software was "up to date" so they couldn't do anything more at this time. "We will have to keep and eye on that" I was told
     
  16. Mar 5, 2023 at 5:16 PM
    #286
    matth66

    matth66 New Member

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    Has anyone tried turning the auto start/stop feature off to see if the lag goes away?
     
  17. Mar 8, 2023 at 7:06 AM
    #287
    southdunes

    southdunes [OP] New Member

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    Yep, there have been discussions about deactivating stop/start and skid control. Unfortunately, neither appear related to the issue and it persists.
     
  18. Mar 8, 2023 at 8:04 AM
    #288
    nodak67

    nodak67 New Member

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    i know in normal mode if i ease into the throttle, i really dont notice the lag but then again i havent done mash to floor take off yet.

    maybe after i break 1k miles and oil change i might.
     
  19. Mar 8, 2023 at 8:21 AM
    #289
    FLKX

    FLKX New Member

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    I don't notice any idfference in lag/surge after doing the TSB
     
  20. Mar 8, 2023 at 9:32 AM
    #290
    LS1Steve

    LS1Steve New Member

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    I've got a Banks Pedal Monster ordered and hopefully this will help on throttle response. Pretty sad stomping on the pedal now and it takes a second for anything to happen lol
     
  21. Apr 6, 2023 at 5:47 PM
    #291
    DarthFisher

    DarthFisher New Member

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    Wondering if those with this issue are light throttle or eco mode users or if that matters. I am having the issue, it's pretty mild. I used echo mode a lot and really tried getting the best fuel economy possible and it started at about 1500 miles. I was just thinking if it possibly AI learned. Would a different driving approach help so wondered how others with the issue were driving before it started.
     
  22. Apr 7, 2023 at 5:54 AM
    #292
    rlc177

    rlc177 Data Logger

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    I still haven't gotten around to logging anything, but I'm wondering if it has to do with having parking support break system disabled (auto breaking when you get close to something). Anytime I'm having the lag its when its at parking speeds. Next time I'm going to try with the system enabled again to see if there is a difference. The interesting thing is to ignore the urge to press the pedal further and the truck actually starts going normally after a few seconds.

    I was thinking of logging the speed, gear, commanded throttle and actual throttle to see if there is a variance or delay there.
     
    FI460 and pwpblue like this.
  23. Apr 24, 2023 at 5:24 AM
    #293
    rlc177

    rlc177 Data Logger

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    No updates right now, I did some data logging commanded throttle vs actual and there is always some delay between the pedal and the actual throttle, its most notable in reverse. Having Parking support break system enabled I don't think is a factor, but more its I've gotten used to manipulating the throttle and resisting the urge to push harder if it doesn't respond immediately which is resulting in smoother starts.
     
    Kap1 likes this.
  24. Apr 24, 2023 at 8:57 AM
    #294
    Kap1

    Kap1 New Member

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    Idk if it's me, or my truck throttle finally smoothed out at 4k miles, but I don't really have any complaints about throttle delay anymore. When it does delay, it's very short half second delay, I'm either used to it or it's very rare, not bothering me anymore
     
    22whatwedo likes this.
  25. Apr 24, 2023 at 9:16 AM
    #295
    FI460

    FI460 New Member

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    I'm not sure if it's bothering me more now, or if it's occurring more frequently. I had the TSB done and it helped for about a week, then it was right back to the original lag.

    I've just started launching it from nearly every stop. I was curious about the same thing as @DarthFisher. I'm generally a very conservative driver. Maybe we're babying the throttle too much. Though my 2 weeks of sending it from every stop hasn't improved the problem.
     
    mlive likes this.
  26. Apr 24, 2023 at 9:30 AM
    #296
    xc_tc

    xc_tc New Member

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    When you say throttle delay between the pedal and the throttle, do you mean there is a difference between value for the pedal angle vs. the throttle angle? With throttle by wire, many vehicles have some calibration for the relationship between the pedal angle and the throttle angle. I wouldn’t necessarily call that delay. It’s basically what a pedal commander does.
     
  27. Apr 24, 2023 at 5:10 PM
    #297
    rlc177

    rlc177 Data Logger

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    There is a pid for commanded throttle and a pid for actual throttle . When I step on the gas the commanded throttle rate goes up instantly and the actual throttle takes a half second to go to the same value. When I get a dead pedal feel I can see that the actual throttle takes a long time to go to the same value as commanded. My bootleg tis seems to crash if I leave it logging too long.
     
  28. Apr 24, 2023 at 5:21 PM
    #298
    rlc177

    rlc177 Data Logger

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    I wonder the same thing, I barely have 550 miles on and I haven't been safely been able to do anything throughout the full throttle range. The ECU hasn't learned what all the throttle ranges are, I need some time on a open highway as to be able to have enough room to get up though the whole rev range.
     
    Kap1[QUOTED] likes this.
  29. Apr 24, 2023 at 5:36 PM
    #299
    Hella Krusty

    Hella Krusty New Member

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    Me either .....kinda scared it will break LOL
     
  30. Apr 24, 2023 at 7:27 PM
    #300
    pyrotechnic

    pyrotechnic New Member

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    This tracks with how my truck responds on those rolling or very short stops. You give it some throttle and there is a delay in response, engine doesn't rev or do anything for a second or so. My driving has adjusted that I just sit there with my foot on the throttle until something happens. If you keep pressing the accelerator further when nothing happens you'll spin your tires when the truck finally decides that it's going to do something with the imput you gave it.
     
    FI460 likes this.

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