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Headlight not staying on

Discussion in 'Gen 2 Prius Main Forum' started by sthomasaz, Jul 12, 2016.

  1. sthomasaz

    sthomasaz Junior Member

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    Jun 27, 2016
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    Scottsdale Az
    Vehicle:
    2005 Prius
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    N/A
    My passenger side headlight always seemed dimmer than the other one. It started to stop lighting up. I replaced the bulb this morning and now it will only stay on for a few minutes before turning off. The drivers side stays lit.

    I will be replacing the 12 volt battery tonight because it needs to be replaced. Would that cause this to happen?
     
  2. Patrick Wong

    Patrick Wong DIY Enthusiast

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    2015 Prius
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    Two
    No. Look for a problem with the light socket or wiring harness, for example the connection to body ground.
     
  3. Augustus88

    Augustus88 Junior Member

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    Three Touring
    Assuming you have regular bulbs and not HIDs?

    If so, check the plug for the bulb. It may be melted slightly. Regardless, take the pins on the bulb and bend them inward very slightly, this will cause a stronger connection to form between the plug and the bulb pins.

    Also check for dirty or loose grounds (Places where wires simply bolt directly to the engine block or chassis)