Headlights feel dangerous

Discussion in 'Gen 5 Prius Main Forum' started by cool_prius, Mar 11, 2025.

  1. daisy555

    daisy555 Senior Member

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    Thank you for clarifying. I was convinced the L shape was causing the dark shadowed areas. I’ve never seen headlights that create shadows before.
     
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  2. Pdog808

    Pdog808 Active Member

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    Wow some articles say the new PHEV Corolla can get up to 1300 miles per tank. That's some serious MPG.
     
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  3. Gokhan

    Gokhan Senior Member

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    See the headlight map on the IIHS Prius page I linked above. It is required for all cars for the driver side to illuminate far shorter than the passenger side, as @Trollbait stated. So, Gen 5 Prius is no different in what you called a shadow. Nevertheless, as you see in the map, the headlight performance of Gen 5 is quite poor, as you also said.
     
  4. Gorgonzola

    Gorgonzola New Member

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    Hi MVA - might you be willing to post a link to the YouTube video you referenced?
     
  5. Winston Smith

    Winston Smith Active Member

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    On yours, you'll use a phillips head screwdriver. Just use a flashlight and look down all the holes under the hood at each corner. You;ll see white metal teeth that are turned with the screwdriver.
     
    #25 Winston Smith, Mar 16, 2025
    Last edited: Mar 16, 2025
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  6. Trollbait

    Trollbait It's a D&D thing

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  7. Paul Gregory

    Paul Gregory Senior Member

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    Excuse me for asking, but what has tank size to do with MPG?
     
  8. Templeton

    Templeton Member

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    I looked on YouTube for videos on gen5 headlight adjustment, but could not find any. Could you post a link to the one you used? Thanks.
     
  9. scotched

    scotched Junior Member

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    I share you complaints. I've retrofitted HID projectors in past cars and I've noticed some of the downsides of our LED projectors.

    1. The physical cutoffs (where the end of the light meets the road) aren't smooth or straight. I think it's due to the shape of the actual LED module/board? It casts a silhouette that looks like it's being shined through tree branches. Worse than "squirrel finders" on old halogens.

    2. The cutoff color right at the edge of the beam is not a pretty blue tone like HID Projectors. It's 3-day old bruised arm yellow. When you point it at the side of the car it distorts the color of whatever you're looking at. Try it and you will never unsee it.

    3. Some of us can detect the pulsing of LED and it bothers our eyes. You noticed it when you drive your car at night when it rains and you can see it strobe. The light quality along with the harshness of the color bothers me.
     
  10. CooCooCaChoo

    CooCooCaChoo Senior Member

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    I wish they had brought the G4 Prime's headlights over to the G5!
     
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  11. phase

    phase Member

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    they shouldve just done a hyundai like they did with the ioniq and had halogens for the LE prius that you can after market upgrade, or built in LEDs for the higher end models like the xle and limited
     
  12. Gokhan

    Gokhan Senior Member

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    My Gen 4 Prius Prime Limited not only has quad LED headlamps but also fog lights. ;)
     
  13. Gokhan

    Gokhan Senior Member

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    Here are the headlight maps for 5-lux minimum illuminance from IIHS. The short bars indicate the optimal distance for low (blue) and high (white) beams.

    Gen 4 Prius:

    [​IMG]

    Gen 4 Prius Prime:

    [​IMG]

    Gen 5 Prius:

    [​IMG]

    2025 Corolla:

    [​IMG]
     
  14. Pdog808

    Pdog808 Active Member

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    Should have been a bit more specific. The article states that the new PHEV Corolla (Prime?) can get 1300 miles on one tank plus a single charge. That number seems to be a significant increase over what a Prius Prime can get with one charge and a tank of gas (more like 600 miles or so in my personal experience.)

    So it would be logical to infer that the MPG on the Corolla (which has a 13.2 gallon tank vs.11.3 on my 2018 Prime) is significantly higher.
     
  15. Gokhan

    Gokhan Senior Member

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    As if the range in miles isn’t mpg times the fuel-tank capacity in gallons, right?
     
  16. Pdog808

    Pdog808 Active Member

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    Yeah it was more of an off the cuff statement as doing math near midnight isn't one of may favorite pastimes :)
     
  17. Gokhan

    Gokhan Senior Member

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    I wasn’t referring to you.
     
  18. daisy555

    daisy555 Senior Member

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    That’s a great description. I described it as shadows but it does look like light is being shined through tree branches. What the heck were they thinking. Don’t they test these features before releasing them? They’ll probably fix it in 2026.

    Here’s a poor quality pic. They are simply not that bright.
    IMG_5224.jpeg
     
  19. cool_prius

    cool_prius Junior Member

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    There's a whole business of people taking apart stock headlights and modding them. Usually to convert to projector lenses but also for style mods like painting the inside black. The Gen 5 headlights are very expensive right now but maybe in the future when used prices go down, someone might want to try to crack one open and improve the beam (and hopefully post to priuschat.com)
     
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  20. scotched

    scotched Junior Member

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    @daisy555

    Before the Gen 5 Prius I had a 2015 Lexus CT with halogen projectors. THOSE lights were terrible in comparison to these. My retrofitted HID's + projectors on my other car blows the Prius away, but they run hot.

    I think "Jewel Eye" design (eg. Gen 4 Prius Prime) solves one of the LED drawbacks. Instead of having a single LED, you have multiple.
     
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