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Headlight assembly differences

Discussion in 'Prius v Care, Maintenance and Troubleshooting' started by NotHyundaiOrHonda, May 26, 2023.

  1. NotHyundaiOrHonda

    NotHyundaiOrHonda New Member

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    Hi all,

    I purchased a replacement headlight assembly for my 2014 Prius v (wagon) after the top of my driver's side headlight cover broke. I finally got around to replacing it and it doesn't seem like the right fit. Looks like the adjuster is in a different configuration and there is one big lamp instead of 2 smaller ones:

    headlights1.jpeg headlights2.jpeg

    I naively trusted eBay's fit guarantee and now it's months past the return window. (Was this supposed to fit a Prius 5 or something?) Should I try to make it work somehow? I don't think the dealership would touch a non-OEM part. I'm unsure about messing around with this in an irreversible way by myself or at an autoshop. Any ideas?
     
  2. xliderider

    xliderider Senior Member

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    They're two different types of headlight assemblies, one is LED, and the one with the one big headlight (lowbeam) is a halogen headlight assembly.

    The big tip off would be the low price you probably paid for the halogen assembly. The LED assemblies are much more expensive.

    Posted via the PriusChat mobile app.
     
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  3. rjparker

    rjparker Tu Humilde Sirviente

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    2012-14 Prius v wagon trims 2 and 3 are halogen and have the big lens. Trim 5 is LED which probably is the two smaller lens version you have. My understanding is the led versions are more expensive because the leds are built in and not replaceable like the halogen bulbs.

    Here is my Prius v trim 3 halogen headlight
    IMG_2102.jpeg
     
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  4. Air_Boss

    Air_Boss Senior Member

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    The v Five projector LED low beam headlamps are fabulous, BTW, are self-leveling, and the high beam projector optics take and handle quality 9005/HB3 LED lamps with no opposing driver glare.
     
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  5. icyrius

    icyrius Active Member

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    I am in need of the ones that did not fit your vehicle. Feel free to send me a private message if you want to sell them and your price. Thanks.
     
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  6. NotHyundaiOrHonda

    NotHyundaiOrHonda New Member

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    Thanks so much for the information everyone.

    You are all correct. I should’ve checked better. The part number fit my VIN on the Toyota parts online store but turns out that was just for any 2014 Prius V wagon.

    I was also mislead by the bulbs: previous owner apparently put halogen bulbs in the LED assembly. So that made me wonder if the LED adjustment was working or not.

    I’ve just dropped the car off at the dealership for them to check the ECU on both headlight assemblies. If they are both broken, I may need to change both. I’m hoping someone was just trying to save money on bulbs…

    If both assemblies need changing, that’s going to be 1-1.5K just in parts. Dealership seems to think that since it came with LED assembly, it must stay that way. But putting in halogen assemblies on both sides would save around $800. Does anyone know if the assemblies can be switched to halogen? The wiring doesn’t seem all that different: halogen has one cable set that LED doesn’t. The connectors on the car are the same as far as I can tell.
     
  7. NotHyundaiOrHonda

    NotHyundaiOrHonda New Member

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    Sure thing, let me figure out if it is usable at all and I’ll get in touch afterwards.
     
  8. rjparker

    rjparker Tu Humilde Sirviente

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    First, I would consider buying a used Led assembly if money is tight rather than switching to full halogen. The light difference is significant. Plus the Low beam halogens burn out frequently. You may have a headlight leveling ecu and motor which is likely to throw codes if it was disabled.

    Changing the one damaged headlight assembly yourself or by an independent shop is fairly easy after partially removing some bumper cover clips.

    IMG_2125.jpeg

    While the housings are different between the "Led" and "Standard" versions, the High beams are halogen in both assemblies.

    The Low beams are different with Leds in the top trim and Halogen in the standard assembly.

    But the Led low beam uses an extra wire. See below which illustrates both wiring methods in one drawing.
    IMG_2123.jpeg
    Note the left (drivers) halogen circuit powers its light with a violet wire coming from the Integration Relay. Clearly the halogen low beam is switched by the Integration Relay. But its not clear that's the case on the Led version because it has an extra Black (or Blue) wire coming from the Body ECU. It is very likely a control.

    IMG_2124.jpeg

    So if you check the Low Beam Violet and find it switches power with the light operation, it could run the halogen. But if it is full time power especially in Ready mode, the software controlling the Low Beam power may be different. You would have to change connectors as well. I would stay with the existing low beam LEDs.
     
    #8 rjparker, Jun 1, 2023
    Last edited: Jun 1, 2023
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  9. NotHyundaiOrHonda

    NotHyundaiOrHonda New Member

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    That makes total sense. This was what I was starting to gather as well so I started reaching out to salvage yards and parts stores around. I was able to find an LED assembly from another 2014 Prius V wagon. It was too cheap to be working though, so I asked the dealership if my old assembly's ECU was working to transfer it. That's when they told me I needed the following:

    Timing gasket resealing: $3,580.52
    Rear shock absorbers replacement: $962.17
    Replace front sway bar links: $478.21

    This is only 5 weeks after I spent $1,860 to replace rear brake pads and rotors, flush brake fluid, get fuel injection and decarbonization done, have the lower ball joints replaced, and wheels aligned. I had gone for an oil change and tire pressure warning. With the regular oil changes and tire rotations, a new 12V battery, and spark plug replacement, I've already spent over $2,500 on maintenance in the 18 months of owning this car. I've driven it a whooping total of 3.4K miles. There is no gas economy in the world that could justify another $5K in repairs...

    All of this is to say, thanks so much for all your help everyone but looks like I won't have a Prius V for much longer. It was a nice car while it lasted.
     
  10. Air_Boss

    Air_Boss Senior Member

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    Sorry to say it, but you have been fleeced. Definitely need to find a new service establishment.
     
  11. NotHyundaiOrHonda

    NotHyundaiOrHonda New Member

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    When I bought the car, when I got the previous repair, or with the new repair quote? I have a feeling you’re going to say all of the above…

    Here is the said leak btw. I checked the oil level and it’s not visibly different from the last change 5 weeks ago. No oil puddle under the car. But the tech is talking about the water pump being leaky so we shall see. Definitely planning to get a second opinion before I give up on my 2014 v.
     

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  12. rjparker

    rjparker Tu Humilde Sirviente

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    One thing about dealers is service advisers and mechanics are on commission and most of those repairs are nice to have but not essential.

    Depending on where you are in Texas you could save most of the money at an independent shop. That is the key. None of those jobs have anything to do with hybrid technology. Or you could have a better than new rebuilt engine for less than the gasket job and engine related maintenance at the dealer. Dealers are not the place for non-warranty work except for a diagnosis if needed.

    I will assume your v has high miles being in Texas. If it burns oil or has ever severely rattled on cold start, getting rid of it may make sense, especially if you can afford to do so in today's hyper car market. Be aware any new or used car dealer will undervalue your car, maybe by $5k.

    If the car is otherwise solid and has lower miles (eg under 125k) I would not sell it to avoid doing a $400 headlight repair. I would buy used oem and make sure the used replacement was genuine and had a return guarantee. Any decent mechanic or many diy'ers could change it in an hour.

    IMG_2128.jpeg
     
    #12 rjparker, Jun 1, 2023
    Last edited: Jun 1, 2023
  13. NotHyundaiOrHonda

    NotHyundaiOrHonda New Member

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    I'm in the DFW area so let me know if you have any recommendations for independent shops.

    I haven't had the gasket and suspension job done yet, just got it diagnosed at the dealership today.

    That's the thing: I keep bringing the car in for electrical issues and they scare me into costly mechanical repairs. I know enough for routine maintenance and minor mechanical repairs but not enough to judge how bad a situation is when they throw it at me like this.

    I went to get my tire pressure warning light addressed last time; walked out with the brake pad and flush etc work done. This time I took it in for headlight replacement and they give me all this stuff. No change in my oil levels, no oil puddles, car is completely quiet and starts silently and immediately. I bought it 137.7K miles in December 2021, it's now at 141.1K. I've barely used it! I'm going to get the headlight changed so it's road-ready again and get the gasket looked at by another shop. Already found a potential headlamp assembly at a parts shop in Grand Prairie. If the mechanic would've just told me my ECU works instead of poking around my engine and suspension, I'd have changed it already.

    And you're right about the salespeople too: I asked them what the cash purchase value was; the salesman at the dealership had the audacity to say 3.5K. I laughed at him. He offered 9K (my loan amount left) if I traded it in. I wonder if the service and sales people are working together to trick people into giving up their cars. The secondhand car shortage seems bad: I've been getting at least one call a week from Toyota dealerships to trade in my v for a new car.