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Not down shifting appropriately to me

Discussion in '2.5 Gen Tundras (2014-2021)' started by Bmitchell2023, Jan 23, 2023.

  1. Jan 23, 2023 at 8:25 PM
    #1
    Bmitchell2023

    Bmitchell2023 [OP] New Member

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    Question about transmission. My 21 seems to not be down shifting appropriately to me. Especially if you doing 45-50 and slow down to make a turn and accelerate pack to 30 mph. Is this common?
     
  2. Jan 23, 2023 at 8:42 PM
    #2
    AZBoatHauler

    AZBoatHauler ASCM#3 Elitist Douchebag

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  3. Jan 23, 2023 at 8:45 PM
    #3
    MedCityMoto

    MedCityMoto SciTech Nerd

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    Can you describe it a little more for us? Mine tends to want to hold onto gears around that speed and takes more driving with the gas pedal to hold speed, rather than ride the brakes and coasting like my Highlander used to. I presume this is a brake-saving feature in particular in a hauling situation, rather like it myself.
     
  4. Jan 23, 2023 at 8:49 PM
    #4
    2mchfun

    2mchfun Lead foot, left lane, loud stereo

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    How long have you had the truck? How long have you had the problem? What are you used to driving?
     
  5. Jan 24, 2023 at 4:51 AM
    #5
    Jaypown

    Jaypown New Member

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    Seems very subjective. Is it just holding a gear? Has it always done this since you've owned it?
     
    2mchfun likes this.
  6. Jan 24, 2023 at 9:33 AM
    #6
    18DCTRD

    18DCTRD New Member

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    Mine seems to do this as well (down shift hard). It's strange, but I find it only happens when I ease back on the throttle to start accelerating back up to 50ish mph. When I'm slightly more aggressive the truck seems less confused and downshifts appropriately.
     
  7. Jan 24, 2023 at 10:24 AM
    #7
    Bmitchell2023

    Bmitchell2023 [OP] New Member

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    Bought the truck used with 20k miles. Sold a GM truck for this one. Only happens if I slow down quickly and then accelerate after a turn. Should be down shifting and it’s not. No load on bumper or bed. It now has 25k and has done it since I bought it.
     
    Last edited: Jan 24, 2023
  8. Jan 24, 2023 at 10:40 AM
    #8
    art64

    art64 New Member

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    There maybe an aftermarket tune installed on that truck. Have dealer check.
     
  9. Jan 24, 2023 at 4:27 PM
    #9
    WaterTrash

    WaterTrash New Member

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    Fluid level?
     
  10. Jan 31, 2023 at 4:04 PM
    #10
    Bassballs75

    Bassballs75 New Member

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    I know what you're talking about. It drives me crazy, my 08 and my 19 did something similar on the same turn on the same corner. I would slow down and make the turn the truck would down shift and I would accelerate easy on to the side road and it would almost sound like it was slipping and bang pretty hard back into third. So I started accelerating harder to see the difference in the shift and it was a much cleaner shift. But it's a quite street with kids around so now I put it into manual before the turn and shift it when I need.
     
    CMikeB likes this.
  11. Jan 31, 2023 at 4:08 PM
    #11
    Wallygator

    Wallygator Well Zippedy Da Do!

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  12. Jan 31, 2023 at 4:53 PM
    #12
    texasrho83

    texasrho83 Teacher in a Tundra

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    Tundras have really wacky shift points from the factory imo. When I got tuned, one of the first things I appreciated the minute I hit the gas was the much improved shifting.
     
  13. Feb 1, 2023 at 2:26 AM
    #13
    CMikeB

    CMikeB New Member

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    I've forgotten how long it's been since I drove my truck in "D." No "shifting issues" for at least 11 years!:D
     
    Wallygator likes this.

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