1. Attachments are working again! Check out this thread for more details and to report any other bugs.

Anybody done a Horn replacement on a 2018

Discussion in 'Gen 4 Prius Accessories and Modifications' started by cobraz, Oct 1, 2018.

  1. cobraz

    cobraz Prius Pirate

    Joined:
    May 7, 2008
    81
    26
    0
    Location:
    Florida
    Vehicle:
    2018 Prius
    Model:
    III
    I did this on my 2015 - but not sure how to take off the bumper on a 2018 - any videos on this - youtube came up empty.
     
  2. jdenenberg

    jdenenberg EE Professor

    Joined:
    Nov 21, 2005
    3,837
    1,828
    1
    Location:
    Trumbull, CT
    Vehicle:
    2020 Prius
    Model:
    LE AWD-e
    I did it to install my OE type fog light kit, Here is a link to instructions for removing the bumper cover on a 2016 which should be the same for a 2018. Lots of fasteners and screws, but I didn't have to totally remove the bumper to get at the fog light fasteners.



    JeffD
     
    JLX likes this.
  3. Harters

    Harters Active Member

    Joined:
    Dec 28, 2016
    335
    424
    0
    Location:
    UK
    Vehicle:
    2017 Prius
    Model:
    Excel
    I replaced the horns on 2016 without taking off the bumper cover. Just four pop clips and the black plastic panel at the front of the engine bay comes off and you can reach in and change them. This should be the case for the 2018 model too and is a very easy job with no changes to the wiring needed.

    Link below to my before and after

    Before

    After
     
  4. Starship16

    Starship16 Senior Member

    Joined:
    Jun 8, 2018
    1,348
    1,452
    0
    Location:
    Beach Christmas
    Vehicle:
    2016 Prius
    Model:
    ----USA----
    I did the same. No need to remove the bumper. Now my 2016 sounds like a Ford SUV! :LOL: But I did need to buy some new plastic clips when reinstalling that black plastic panel. I lost one, and the other 3 felt kinda loose.
     
    Harters and krmcg like this.
  5. cobraz

    cobraz Prius Pirate

    Joined:
    May 7, 2008
    81
    26
    0
    Location:
    Florida
    Vehicle:
    2018 Prius
    Model:
    III
    Just an update - this was a piece of cake.... as stated above - take off the plastic top panel in front of motor compartment.
    Unscrew one horn - remove connector tap into Positive wire (Black/Silver dash) Negative wire (Solid black). Installed two Fiamm Freeway Blasters 72112 Low and 72102 High. No more Beep Beep. Awesome. No relay or switches needed .. right to factory wires.
     
    User242, Starship16, Harters and 2 others like this.
  6. Harters

    Harters Active Member

    Joined:
    Dec 28, 2016
    335
    424
    0
    Location:
    UK
    Vehicle:
    2017 Prius
    Model:
    Excel
    Glad you are sorted, but I didn't have to tap into any wires. My Freeway Blasters (74100 El Grande) just plugged straight onto the existing plugs, so I wonder why yours were different?
     
    Starship16 likes this.
  7. cobraz

    cobraz Prius Pirate

    Joined:
    May 7, 2008
    81
    26
    0
    Location:
    Florida
    Vehicle:
    2018 Prius
    Model:
    III
    El Grande that's nice - these Fiamm - are tab connection horns.
     
  8. Starship16

    Starship16 Senior Member

    Joined:
    Jun 8, 2018
    1,348
    1,452
    0
    Location:
    Beach Christmas
    Vehicle:
    2016 Prius
    Model:
    ----USA----
    Mine sounds pretty much like this Ford. I installed the Flamm horns, as recommended by the Priuschat members. Just plugged right in. Glad I did. I hated that Roadrunner meep-meep sound. :ROFLMAO:



     
    User242 likes this.
  9. MarkTapley

    MarkTapley New Member

    Joined:
    Nov 17, 2018
    2
    1
    0
    Location:
    Illinois
    Vehicle:
    2018 Prius
    Model:
    Three
    Hi everyone,

    First post. Got a new Prius two weeks ago. Hate the “beep beep horn.”

    Followed posts here and purchased Fiamm 74100 El Grande horn kit from Amazon. Super easy to install, thanks to great instructions posted here. One wire to male blade on each horn.

    However, no sound! Only clicks. Put the OEM horns back in place.

    The instructions from Fiamm show a “Jumper Wire” installed between the unused blade on the horn and the 6 mm stud on top of the horn. These wires were not in the kit.

    Does the fact that the jumper wires were not installed mean the horns won’t operate?

    Thanks much for any help!
     
  10. MarkTapley

    MarkTapley New Member

    Joined:
    Nov 17, 2018
    2
    1
    0
    Location:
    Illinois
    Vehicle:
    2018 Prius
    Model:
    Three
    I contacted Fiamm and they sent me the jumper wires. I installed them and they work great.
     
    krmcg likes this.
  11. krmcg

    krmcg Lowered Blizzard Pearl Beauty

    Joined:
    May 15, 2008
    2,592
    2,388
    0
    Location:
    Whittier, CA
    Vehicle:
    2016 Prius
    Model:
    Four
    good job
     
  12. DMCiviello

    DMCiviello Junior Member

    Joined:
    Aug 24, 2017
    1
    1
    0
    Location:
    Gleneden Beach, Oregon
    Vehicle:
    2017 Prius
    Model:
    Four
    Yes I did. No need to touch the bumper. You may access the horns from under the hood. Simply remove the shield that surrounds the hood latch for access to both horns. It's on the tight side but my 68 yr. old hands managed. I used a high and low horn available from a local parts store chain. Simple.
     
    JLX likes this.