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Speedometer/Odometer/Cruise Calibration

Discussion in '2.5 Gen Tundras (2014-2021)' started by m4sh33n, Jan 23, 2020.

  1. Jan 23, 2020 at 6:35 AM
    #1
    m4sh33n

    m4sh33n [OP] New Member

    Joined:
    Jul 2, 2019
    Member:
    #32709
    Messages:
    22
    Gender:
    Male
    East Texas
    Vehicle:
    2019 Tundra TRD Sport
    BDS 7" Coilover Supsension Lift LEER 100XL Topper 20" Methods 37" Nitto Ridge Grapplers Amp Steps LED swapped every bulb in/on the truck
    I've got a bit of an annoying issue that's driving my ADD crazy. After going from stock to 37's the shop told me they recalibrated the speedometer. It's still about 2-3 MPH off. So at 70 MPH I'm really only going about 68. Ok, fine, I can live with that. The analog speedometer and the digital display match. However, when I set the cruise, the set speed shown on the digital display is 10 MPH off. So, driving at 70, really only going 67-68, set the cruise and it shows a set speed of 60. The faster I go, the more off it gets. I had the exact same truck with 35's, but an '18 whereas this one is a '19 and everything was spot on (analog speedo, digital speedo and cruise set speed) so I know it can be done. But, how do I fix this?
     
  2. Jan 23, 2020 at 8:07 AM
    #2
    Sas

    Sas Humor is everywhere

    Joined:
    Jul 16, 2018
    Member:
    #17087
    Messages:
    4,410
    Gender:
    Male
    First Name:
    Jason
    OKC, OK
    Vehicle:
    '17 SR5 CM TSS 4WD MGM 5.7 FF
    Lost track after #1.
    Just as an FYI, the speedo is off by about 1-2MPH from the factory as well. As far as the cruise being set, it sounds like the shop didn't fully update the ECU or whatever product they used doesn't account for that. I don't have that issue on mine after doing the calibration. Take it back to them and have them fix it.
     
    m4sh33n[OP] likes this.

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