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ECU Re-Flash ?

Discussion in 'Towing & Hauling' started by DieselDoc 10, Sep 7, 2016.

  1. Sep 7, 2016 at 10:35 AM
    DieselDoc 10

    DieselDoc 10 [OP] New Member

    Aug 18, 2016
    First Name:
    2015 Tundra SR5 Off Road
    Air bags, 45 gallon Fuel tank, Brake controller (P3)
    Hello . I have a 2015 Tundra CrewMax 5.7 auto trans. I installed an after market trailer brake controller ( Tekonsha P3 ) and read in a leading publication that if it was not factory installed that the ECU should be re-flashed by Toyota to benefit from all the systems features Like Sway (Yaw) control and other things. Apparently the ECU flash is different on the factory ECU starting in 2016. Just want to clear this up before I tow too much more. Thanks for any help.

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