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Angel And The Wolf 02-07-2018 08:39 AM

2011 Prius Light Bulbs Burning Out
 
I like to run my tires at 42 lbs for more mpg, but it seems my headlight bulbs can't handle the harsher ride. I replace 2 or 3 bulbs per year. I've lost low beam, high beam, and fog light bulbs.

I've had Toyota dealership check the electrical system. Nothing found. I bought new tires a few months ago, and I left the pressure where Toyota set them, no bulb problems. Guess I could raise the pressures to 42, and see if I lose bulbs.
2011 prius

LeanBurn 02-07-2018 10:58 AM

What bulbs are you using?

gone-ot 02-07-2018 12:57 PM

Do the lights sometimes "flicker" while driving on rough roads?

Angel And The Wolf 02-07-2018 01:35 PM

Quote:

Originally Posted by LeanBurn (Post 560794)
What bulbs are you using?

OEM and then what Toyota replaces them with.

Angel And The Wolf 02-07-2018 01:36 PM

Quote:

Originally Posted by Old Tele man (Post 560819)
Do the lights sometimes "flicker" while driving on rough roads?

No, but there have been times when a good swift slap on the fender brought one back.

gone-ot 02-07-2018 01:59 PM

Quote:

Originally Posted by Angel And The Wolf (Post 560825)
No, but there have been times when a good swift slap on the fender brought one back.

Typical causes for lamp failure are (in order):
1) Mechanical failure, ie: filament breakage.
2) Thermal failure, ie: over-heating due to too high voltage.
3) Intermittent -- ie: sudden ON/OFF -- current surges.

Sounds like there's an "intermittent" (loose connection(s)) somewhere.

Angel And The Wolf 02-07-2018 02:07 PM

Quote:

Originally Posted by Old Tele man (Post 560829)
Typical causes for lamp failure are (in order):
1) Mechanical failure, ie: filament breakage.
2) Thermal failure, ie: over-heating due to too high voltage.
3) Intermittent -- ie: sudden ON/OFF -- current surges.

When a bulb goes out, and I can't slap it back on,Toyota finds filament breakage. I asked them what could be done to stop this from happening, and they suggested a different type of headlight that costs a couple of hundred for each side. Is there a plug inreplacement bulb that is less prone to breakage, and doesn't cost hundreds of dollars?

redpoint5 02-07-2018 02:11 PM

Quote:

Originally Posted by Angel And The Wolf (Post 560830)
Is there a plug inreplacement bulb that is less prone to breakage, and doesn't cost hundreds of dollars?

HID. I wouldn't recommend it though unless you have a projector style headlight. Reflector style don't have a sharp cutoff point, so you end up blinding oncoming traffic.

Angel And The Wolf 02-07-2018 02:42 PM

Sounds like I'm stuck with periodic $42 bulb replacements.

redpoint5 02-07-2018 04:08 PM

Quote:

Originally Posted by Angel And The Wolf (Post 560836)
Sounds like I'm stuck with periodic $42 bulb replacements.

Who is charging $42 for a bulb? They should be like $10.

There are high durability bulbs, but they simply output less light. If you're ok with that, they will last a lot longer.

You could convert your lights to LED or HID, but to do that properly is a bit more expensive.


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