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HID Headlights Randomly Turning Off

Discussion in 'Model S' started by Bridor, Aug 22, 2017.

  1. Bridor

    Bridor Member

    Joined:
    Mar 20, 2016
    Messages:
    98
    Location:
    Maricopa, Arizona
    I have an early 2014 Tesla Model S 85 with the Tech package (110,000 miles). Lately, I have noticed that my headlights are turning off late at night. Sometimes it is the right one, sometimes it is the left one and a couple of times, both headlights went out. All I have to do is bring up the controls, turn the headlights off and then click the Auto option again and the headlights work ok again.

    Has anyone else experienced this issue? Tesla reviewed my logs and found nothing and want to charge me $120 for a diagnosis.

    What is cool is that it actually shows me in the middle of the left side LED panel that the light(s) are off. I can live with it, but if I can solve the issue, that would be wonderful.

    Brent
     
  2. Bridor

    Bridor Member

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    Mar 20, 2016
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    98
    Location:
    Maricopa, Arizona
    I am the only person in the world that has this problem? I feel totally unique right now... Anyone have any insight as to what might be happening?
     
  3. BoldSharpe

    BoldSharpe Member

    Joined:
    Jan 3, 2015
    Messages:
    129
    Location:
    Wisconsin
    I have not had this issue on my Tesla but I had the exact problem on my old Lexus with HID headlamps. Sometimes one would go out, sometimes both, I could typically toggle the lights off and on again and they'd be fine for a while. I couldn't reproduce the issue on command when I brought it in for service so that didn't help matters. After doing some research, I determined the bulbs needed to be replaced. I found some replacement bulbs on amazon for about $25 a piece and that solved the problem.

    I'd imagine with 100K+ on the clock, you're probably due. Best of luck and let us know if you find a solution.
     
  4. Bridor

    Bridor Member

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    Location:
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    Thanks for the information - I will try it out and will post the results.

    Brent
     
  5. jjh1234

    jjh1234 Member

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    Jul 8, 2017
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    272
    Location:
    Pittsburgh, PA
    HID bulbs only have so many hours of useful life (about 3,000 hours, or 90,000 miles depending on driving habits). Then they start to get flakey. It's my understanding they can actually explode if used past their useful life. The color of light produced also changes as they age. I had a similar problem with the lights on my Porsche Cayenne. The light would flick on and off and the car would throw a "dipped beam" error. I bought replacement bulbs from one of the more reputable eBay sellers and it fixed the problem. If you don't want a color difference, replace both bulbs at the same time.
     
  6. cgiGuy

    cgiGuy Active Member

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    Sacramento, CA
    Thought I remember seeing a dash cam video someone posted of this happening in an X on the highway, but I can't find it.
     
  7. brandonmbeard

    brandonmbeard Member

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    Aug 27, 2013
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    Location:
    West Chester, Ohio, United States
    Welcome to the club. I've had 4 Model S do this to me. All about 90K to 110K miles. It requires an entirely new headlamp assembly at $1200 per side!
     
  8. Bridor

    Bridor Member

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    Location:
    Maricopa, Arizona
    I was just told this by the Buena Park Service Center - this is outrageous. Surely there must be a way to just replace the bulbs. On eBay, there are sellers saying that they sell the bulbs and that they are compatible with the Tesla Model S with Tech Package - anyone else had any luck replacing just the bulbs?
     
  9. mrElbe

    mrElbe Active Member

    Joined:
    Aug 17, 2014
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    1,238
    Location:
    Stouffville, ON Canada
    1. The DS3 HID bulb units are replaceable.
    2. I had the passenger headlight go out intermittently and then permanently. Nothing wrong with the light, it was a broken ground stud on the frame. See here: Ground Stud
     
  10. David99

    David99 Active Member

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    Location:
    Brea, Orange County
    I had my head lights tun off randomly as well. First only the right side, then both. I was always able to get them back on by switching them off and on again. But this would only help for a few minutes, then they turn off again.

    I finally got two new HID bulbs, replaced them, and now the light works fine again. I think new light bulbs after 125,000 miles and 3.5 years is reasonable.
    BTW do not buy them from AutoZone or Reilly Auto parts. They will charge you $140 or more for each! Get some from Amazon where they are $35 a pair!
    Swapping them out is a pain. You have to take off the front wheel and some of the plastic and felt cover in the wheel well. Took me about 1.5 hours to do both.
     

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