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

How to make the S Z tail lights light up when braking

Discussion in 'Gen 4 Prius Accessories and Modifications' started by kitkit201, Mar 12, 2016.

  1. kitkit201

    kitkit201 Member

    Joined:
    Mar 20, 2014
    136
    88
    0
    Location:
    Bay Area, CA
    Vehicle:
    2016 Prius
    Model:
    Four
    So the tail lights in the back with the S Z styling only light up passively when the parking lights are on or headlights.

    In the day time, the brakes are not bright enough imo. Is there a way to make the S Z lights come on with the brake lights ?
     
    #1 kitkit201, Mar 12, 2016
  2. xliderider

    xliderider Senior Member

    Joined:
    Apr 19, 2012
    7,919
    3,142
    0
    Location:
    Honolulu, HI
    Vehicle:
    2011 Prius
    Model:
    Three
    It could be done, but you would need to locate the proper wires in the wiring harness to the brake assembly and do some rewiring.

    Another thing to consider is sometimes Toyota switches lights on the positive wire, and sometimes the switch is on the negative wire (floating ground, which I believe the front parking lights are on the gen 3), so you would need to determine whether the Z lights are floating ground before rewiring them into the brake circuit.
     
    #2 xliderider, Mar 12, 2016
  3. Coast Cruiser

    Coast Cruiser Senior Member

    Joined:
    Mar 12, 2016
    2,267
    2,571
    0
    Location:
    Pacific Coast Highway
    Vehicle:
    2016 Prius
    Model:
    Three
    I gotta check that out. I thought the Z-Bolts came on with the brakes? That's the only reason I bought the car!
     
    #3 Coast Cruiser, Mar 16, 2016
    krmcg likes this.
  4. Jorin

    Jorin Member

    Joined:
    Mar 16, 2016
    67
    91
    22
    Location:
    Moon
    Vehicle:
    2016 Prius
    Model:
    N/A
    They don't. There is a small area besides them for the breaking light, right under the back light. Sorry. :(
     
    #4 Jorin, Mar 24, 2016
  5. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    110,129
    50,045
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    bummer. i would want those beauties on 24/7!
     
    #5 bisco, Mar 24, 2016
  6. benlovesgoddess

    benlovesgoddess Active Member

    Joined:
    Mar 29, 2016
    135
    158
    0
    Location:
    Yorkshire
    Vehicle:
    2016 Prius
    Model:
    Four
    Yeah, they look great - when I first saw a pic of them on here, I thought they were some jazzy add on, not stock! I guess they are on if sidelights are on? There's only a few weeks in summer over here when it's inappropriate to have sidelights on...! Tried the auto main beam - interesting to watch them work, but I think they dipped a little on the late side to be as courteous to other road users as I'd like.
     
    #6 benlovesgoddess, Apr 11, 2016
    bisco likes this.
(You must log in or sign up to post here.)