Why is P (parking brake button) not illuminated at night?

Discussion in 'Gen 4 Prius Main Forum' started by alexprius22, Apr 18, 2022.

  1. alexprius22

    alexprius22 New Member

    Joined:
    Apr 17, 2022
    4
    0
    0
    Location:
    englewood florida
    Vehicle:
    2022 Prius
    Model:
    XLE
    P (parking brake button) not illuminated at night?

    It is during the day when I don't need the illumination as much.
     
  2. BiomedO1

    BiomedO1 Active Member

    Joined:
    Mar 27, 2021
    515
    285
    0
    Location:
    SacTown, Ca
    Vehicle:
    2021 Prius Prime
    Model:
    LE
    Your dash illumination must be at least two bars - one bar or less all buttons will go dark.

    If your other buttons are illuminated, you may have an issue the that button only - burn out bulb.
     
    alanclarkeau likes this.
  3. Mendel Leisk

    Mendel Leisk Underfoot

    Joined:
    Oct 17, 2010
    49,171
    35,069
    80
    Location:
    Greater Vancouver, British Columbia, Canada
    Vehicle:
    2010 Prius
    Model:
    Touring
    Just editorial: do you mean this button:

    upload_2022-4-18_13-48-55.png

    That's for shifting the transaxle to "P" gear (likely short for "Park"), but not related to "Parking Brake".
     
    Doug McC and fuzzy1 like this.
  4. alanclarkeau

    alanclarkeau Senior Member

    Joined:
    Feb 24, 2016
    7,041
    7,567
    0
    Location:
    near Brisbane, Australia
    Vehicle:
    2016 Prius
    Model:
    N/A
    The Parking Brake is on the floor - and yes, it's fairly dark down there - but I don't know a car with an illuminated Foot Park Brake Pedal.
     
  5. alexprius22

    alexprius22 New Member

    Joined:
    Apr 17, 2022
    4
    0
    0
    Location:
    englewood florida
    Vehicle:
    2022 Prius
    Model:
    XLE
    Thanks but as I said it is illuminated in daytime and brightness control is maxed out.

    For comment about parking brake being dark we are discussing the parking brake button! Not the pedal.
     
  6. BiomedO1

    BiomedO1 Active Member

    Joined:
    Mar 27, 2021
    515
    285
    0
    Location:
    SacTown, Ca
    Vehicle:
    2021 Prius Prime
    Model:
    LE
    I'd go back to the dealer in the dark and show them - that's some strange behavior. It may have gotten cross wired somehow.

    Try turning-on the headlights during the daytime, when it's illuminated - see if it goes out... It should actually work opposite, out during the daytime, on with the headlamps.

    Good Luck...
     
    Doug McC likes this.
  7. Doug McC

    Doug McC Member

    Joined:
    Feb 15, 2022
    375
    137
    0
    Location:
    Northwest Illinois
    Vehicle:
    2022 Prius
    Model:
    XLE
    Let’s start over: Are you referring to the button on the center console that says “P”?
     
    fuzzy1 and Mendel Leisk like this.
  8. fuzzy1

    fuzzy1 Senior Member

    Joined:
    Feb 26, 2009
    16,139
    9,324
    90
    Location:
    Western Washington
    Vehicle:
    2012 Prius
    Model:
    Three
    What those above have said ... there is no "parking brake button".

    There is a parking brake pedal:
    upload_2022-4-19_10-32-10.png

    and a separate 'transmission' Park button:

    upload_2022-4-19_10-33-34.png

    So, for clarification, which one of these two separate items are you referring to?
     
    alanclarkeau likes this.
  9. Doug McC

    Doug McC Member

    Joined:
    Feb 15, 2022
    375
    137
    0
    Location:
    Northwest Illinois
    Vehicle:
    2022 Prius
    Model:
    XLE
    alexprius22 did say that the button he was referring to WAS lit during the day, but not at night. That means something doesn’t seem right. Right now it seems we are all making assumptions as to what he is referring to. I, for one, would like to have clarification from him.
     
  10. TucsonPrius

    TucsonPrius Member

    Joined:
    Mar 9, 2004
    162
    13
    0
    Location:
    Tucson, AZ
    Vehicle:
    2020 Prius
    Model:
    LE
    Rather than nitpick about a simple English mistake, I'll provide my observations for a 2020 Prius LE model.

    On my car I believe I saw that the green LED in the middle of the button is lit when the car is in park. This is true day or night and only when the car is in park. The button is illuminated in blue when the headlamps are on regardless of whether the car is in park or not.

    Hope this is a helpful reply.
     
    Salamander_King likes this.
  11. dacoobob

    dacoobob Junior Member

    Joined:
    Dec 29, 2021
    81
    43
    0
    Location:
    Kansas City, MO
    Vehicle:
    2016 Prius
    Model:
    Four Touring
    Thanks for cutting through the bullshit. This forum can be downright pedantic at times.

    To add another datapoint, my 2016 Prius Five Touring has the same behavior: the green indicator light is on when the car is in "Park", off when it's not; the white "P-in-a-box" button label lights up in blue when the vehicle headlights are turned on, and is unilluminated when the headlights are off. If the headlights are set to "Auto" mode, the blue illumination matches the actual status of the headlights-- off when they're off, on when they come on.
     
    Salamander_King likes this.
  12. Salamander_King

    Salamander_King Senior Member

    Joined:
    Nov 8, 2015
    10,434
    8,337
    0
    Location:
    New England
    Vehicle:
    Other Hybrid
    Model:
    N/A
    Not a regular Prius but my 2021 PP behaves the same way as @TucsonPrius described. Here is a pictorial version of his description.

    upload_2022-4-19_15-51-10.png

    upload_2022-4-19_15-52-53.png

    upload_2022-4-19_15-56-14.png

    upload_2022-4-19_15-58-11.png
     
    PaulDM and alanclarkeau like this.
  13. Doug McC

    Doug McC Member

    Joined:
    Feb 15, 2022
    375
    137
    0
    Location:
    Northwest Illinois
    Vehicle:
    2022 Prius
    Model:
    XLE
    So those are all GREAT answers IF that is what his question is referring to. However, there is another switch with a P on it, and another possibility beyond a switch with a P on it that both are possibilities in a 2022 XLE.
    I have learned a few lessons in my life and one of them is “if you are not absolutely sure what the question is, ask for clarification”.
     
  14. Salamander_King

    Salamander_King Senior Member

    Joined:
    Nov 8, 2015
    10,434
    8,337
    0
    Location:
    New England
    Vehicle:
    Other Hybrid
    Model:
    N/A
    What is the other switch with a P on it? I looked for it in my PP, but I could not find it... Is it in a regular Prius but not in Prius Prime?
     
  15. Doug McC

    Doug McC Member

    Joined:
    Feb 15, 2022
    375
    137
    0
    Location:
    Northwest Illinois
    Vehicle:
    2022 Prius
    Model:
    XLE
    I don’t know, what I do know is that it is there in the 2022 PRIUS XLE. I try not to answer questions about other models unless I am fairly certain that I know the answer to the question.
     
    Salamander_King likes this.
  16. Salamander_King

    Salamander_King Senior Member

    Joined:
    Nov 8, 2015
    10,434
    8,337
    0
    Location:
    New England
    Vehicle:
    Other Hybrid
    Model:
    N/A
    I thought you have a 2022 Prius XLE? That's what is on your profile. I am not asking about my PP. I can't find another button with "P" on my PP. That's why I asked what the other "P" button is on the 2022 Prius XLE.
     
  17. PaulDM

    PaulDM Active Member

    Joined:
    Sep 24, 2016
    551
    268
    2
    Location:
    UK
    Vehicle:
    2022 Prius
    Model:
    Excel
    Salamander_King likes this.
  18. Doug McC

    Doug McC Member

    Joined:
    Feb 15, 2022
    375
    137
    0
    Location:
    Northwest Illinois
    Vehicle:
    2022 Prius
    Model:
    XLE
    It’s there, you just have to open your mind to it, and perhaps look outside the box your thinking in at the moment ;)
     
  19. dacoobob

    dacoobob Junior Member

    Joined:
    Dec 29, 2021
    81
    43
    0
    Location:
    Kansas City, MO
    Vehicle:
    2016 Prius
    Model:
    Four Touring
    :rolleyes::rolleyes::rolleyes:
     
  20. Doug McC

    Doug McC Member

    Joined:
    Feb 15, 2022
    375
    137
    0
    Location:
    Northwest Illinois
    Vehicle:
    2022 Prius
    Model:
    XLE
    At the risk of making the forum “be downright pedantic at times”, what’s your point?
    From your (not so polite) response, it’s apparent you couldn’t find it.
    I don’t know much (in reality, very little) about the Prius 4 Touring, but from the few pictures I was able to find, you probably wouldn’t be able to find it, since the system I am referring to may not be included on that model. But then it would be beyond this discussion then, wouldn’t it?
     
    #20 Doug McC, Apr 20, 2022
    Last edited: Apr 20, 2022
Loading...