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    Quick Links: Newbie Just figured to let you know I have had and loved toyota cars and truckss since 1980 Mudflaps New Member from Florida New here. looking for input on wheels,tires,lifts and or levels... New Tundra owner Tundra 2019

Trailer brake lights not working.

Discussion in 'New Member Introductions' started by probin, Jul 26, 2025.

  1. Jul 26, 2025 at 9:11 AM
    #1
    probin

    #1
    probin [OP] New Member

    Joined:
    Jul 26, 2025
    Member:
    #138422
    Messages:
    0
    Gender:
    Male
    First Name:
    Phil
    Vehicle:
    2021 Tundra SR5
    I’m driving a 2021 Tundra SR5. I’m having issues with the trailer brake lights and turn signals not working when hooked up to several trailers (car hauler and a camper) I’ve checked all my fuses including placement and all looks good. I thought maybe it was the R1 tow relay but that wasn’t the problem either. I even replaced the 7pt trailer port and still same problem. Anyone have any suggestions? Extremely frustrated with this one as I keep coming up empty handed with a solution. Thanks! Can’t wait to see what the answers are.
     
    probin, Jul 26, 2025
    #1
    2mchfun likes this.
  2. Jul 26, 2025 at 7:08 PM
    #2
    Jim LE 1301

    #2
    Jim LE 1301 Camaro Lover, SSEM # 11,TTC#179

    Joined:
    Apr 29, 2018
    Member:
    #14884
    Messages:
    29,987
    Gender:
    Male
    First Name:
    Jim
    Hudson Valley, New York
    Vehicle:
    2018 MGM Tundra TRD Sport Double Cab
    Jim LE 1301, Jul 26, 2025
    #2
    Retired...finally and 2mchfun like this.
  3. Jul 26, 2025 at 8:29 PM
    #3
    Bakershack

    #3
    Bakershack Critical of Noncritical Thinkers

    Joined:
    May 20, 2020
    Member:
    #46846
    Messages:
    6,012
    Gender:
    Male
    First Name:
    Kelly
    Spanish Fort, AL
    Vehicle:
    2020 SSM 1794 4x4
    Welcome from LA (Lower Alabama)!
     
    Bakershack, Jul 26, 2025
    #3
    2mchfun likes this.
  4. Jul 26, 2025 at 8:41 PM
    #4
    2mchfun

    #4
    2mchfun Cool story, but did your new TTV6 tow a shuttle?

    Joined:
    Dec 31, 2020
    Member:
    #56879
    Messages:
    6,993
    Gender:
    Male
    First Name:
    Dan
    Vehicle:
    2021 White 4x4 CM Trail Ed. 2018 White 4x4 4Runner SR5 Premium
    Seat covers, dash mat, ext. Trans. Cooler, sumo springs, oem pwr fld tow mirrors
    Welcome from OKC! Assuming you know about the small fuse box above the parking brake, correct?
     
    2mchfun, Jul 26, 2025
    #4
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