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2020 TACOMA WONT SHIFT OUT OF 3RD

Discussion in '3rd Gen. Tacomas (2016+)' started by Bulletproofmafia, May 4, 2021.

  1. May 4, 2021 at 11:46 AM
    #1
    Bulletproofmafia

    Bulletproofmafia [OP] Well-Known Member

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    2020 Tacoma won't shift past third gear on highway, problem occurs on cruise control @ 80 mph, will not shift past 3rd and will hold 5300rpms for many miles, tsb update has been done to truck, speedometer has been recalibrated, shift adaptives have been reset, pedal commander has been tried, does it weather ect is on or off. truck is slightly lifted on 33's every modification was put on by dealer before i purchased truck brand new, truck has been back to dealer 13 times, truck is still currently at dealer, problems started at 2500 miles, truck currently has 7100 miles i will attach link to youtube video of the problem and ill attach picture of truck, thank you for your help.

    youtube video link here

    https://youtu.be/KAGDk3NuuYY

    tacoma 1.jpg
     
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  2. May 4, 2021 at 11:49 AM
    #2
    whatstcp

    whatstcp currently drunk so don't listen to me

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  3. May 4, 2021 at 11:53 AM
    #3
    Skydvrr

    Skydvrr IG: @kalopsianick

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    33's? Regear? Headwind? I'd say normal.
     
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  4. May 4, 2021 at 11:56 AM
    #4
    Bulletproofmafia

    Bulletproofmafia [OP] Well-Known Member

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    33's, stock gear, headwind or not does it every day. every time dealer messed with computer problem would be resolved for about 500 miles so that tells me its not a problem with tires lift or gear.
     
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  5. May 4, 2021 at 11:56 AM
    #5
    tonered

    tonered tacorider

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    Nothing on the far side of the torque curve and holding a steady speed should do that repeatably.
     
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  6. May 4, 2021 at 11:57 AM
    #6
    Bulletproofmafia

    Bulletproofmafia [OP] Well-Known Member

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  7. May 4, 2021 at 11:57 AM
    #7
    Natetroknot

    Natetroknot Experiencing TW at several WTFs per thread

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    As he said it’s dealer modified on 33s

    Definitely not normal

    What sort of info have you got after your first 13 visits?

    Not ok you’ve been strung along that many times.
     
  8. May 4, 2021 at 11:58 AM
    #8
    Skydvrr

    Skydvrr IG: @kalopsianick

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    Your spedo hasn't been corrected either right? So you're maybe doing 84 in that first video? I think it's normal.
     
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  9. May 4, 2021 at 12:01 PM
    #9
    whatstcp

    whatstcp currently drunk so don't listen to me

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    if you quickly skim through the first post you'll read that the dealership will often just hookup the techstream scanner and bless it off which isn't close to actually checking it. Ask them to actually get down and dirty and do a proper fluid check. At the very least, them actually checking the fluid level will knock if off the list of a possible culprit
     
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  10. May 4, 2021 at 12:01 PM
    #10
    tonered

    tonered tacorider

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    :D
     
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  11. May 4, 2021 at 12:02 PM
    #11
    Skydvrr

    Skydvrr IG: @kalopsianick

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    I really need to stfu. Working and being on here is not good lol. Apologies OP. I'll shut up.
     
  12. May 4, 2021 at 12:02 PM
    #12
    Bulletproofmafia

    Bulletproofmafia [OP] Well-Known Member

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    correct that video is old, and was 84 but has since been re callibrated and is still doing exact same thing in exact same conditions at true 80mph
     
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  13. May 4, 2021 at 12:04 PM
    #13
    tonered

    tonered tacorider

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    :rofl::rofl:

    I know the feeling. This morning, I posted about the Taco Lean in a thud thread.


    @Skydvrr

    You smelled that out though.
     
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  14. May 4, 2021 at 12:06 PM
    #14
    Natetroknot

    Natetroknot Experiencing TW at several WTFs per thread

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    By now they should’ve been knee deep in the valve body, but Toyota would probably rather swap in a new tranny to isolate the problem if normal troubleshooting hasn’t produced a culprit. They should at least know by now if it’s ECU related or an internal transmission issue.

    I sure hope the fluid level has been verified by now.

    Hope you get it solved OP, that’s a really nice looking truck.
     
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  15. May 4, 2021 at 12:09 PM
    #15
    Bulletproofmafia

    Bulletproofmafia [OP] Well-Known Member

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    thank you I appreciate it, I have gone as far as opening a TAS case with toyota corp, and they have yet to send a field rep out to look at truck, i have been getting major run around by dealer and toyota corp, I feel as if they dont want to touch the truck because of modifications, yet they were the ones who put everything on.
     
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  16. May 4, 2021 at 12:11 PM
    #16
    Natetroknot

    Natetroknot Experiencing TW at several WTFs per thread

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    Remember they don’t have that luxury. That’s the beauty of your position. You paid a LOT of extra money to have those products selected and installed by Toyota trained techs.
    You are more than justified in being a proverbial thorn in their side.

    EDIT: does this only occur while cruise is on? Does it downshift if you approach another vehicle from behind (when using the radar cruise, not the old fashioned one)
     
    Last edited: May 4, 2021
  17. May 4, 2021 at 12:15 PM
    #17
    Clearwater Bill

    Clearwater Bill Sometimes when I close my eyes, I can't see.

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    Does it act goofy at posted limits too?
     
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  18. May 4, 2021 at 12:24 PM
    #18
    Bulletproofmafia

    Bulletproofmafia [OP] Well-Known Member

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    it will do it with cruise off but not as bad, and yes it will down shift if radar picks up a car in front of me, ive had several people say well dont use cruise, I do a 60 mile commute everyday so i love cruise lol along with i didnt spend 50k to not be able to use my cruise control lol
     
  19. May 4, 2021 at 12:29 PM
    #19
    Natetroknot

    Natetroknot Experiencing TW at several WTFs per thread

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    Stay helpful Bill, Christ
     
  20. May 4, 2021 at 12:32 PM
    #20
    scotkw

    scotkw Well-Known Member

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    Video make me cringe.
     

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