My drivers side headlight won't switch from high beam to low beam.


Asked by Nov 17, 2014 at 11:03 PM about the 2008 Toyota Prius Touring

Question type: Maintenance & Repair

Its a 2008 HID.  The passenger side works fine.  If I get out of the car and knock on the headlight, it changes

2 Answers


Its either a bad bulb or a loose connection.


The high beam low beam thing is actually a mechanical (not electronic) shield that opens and closes like a little door...that's why it changes when you knock on it. Could be a stuck spring or jammed part. service center had no idea it worked this way. When they couldn't figure it out, I took the whole thing apart and was amazed to find a simple mechanical device on such a hi-tech car.

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