LED map lights stay dimly lit after car is off? - Cobalt SS Network



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Old 12-15-2010, 12:50 AM   #1
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LED map lights stay dimly lit after car is off?

Anyone know why? This is really weird, they are on when the car is just sitting...
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Old 12-15-2010, 12:53 AM   #2
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it has to do with the led and how its made. it will never do anything thou, not to the life of the led or the batt of your car, it prob has to do with the resistor size on the back on the led board
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Old 12-15-2010, 12:56 AM   #3
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Anyone know why? This is really weird, they are on when the car is just sitting...
did u get them from BUYHID?
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Old 12-15-2010, 01:14 AM   #4
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Mine have done it, dont worry about it. Wont harm the led's and wont drain the battery
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Old 12-15-2010, 01:24 AM   #5
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how do you get into the map lights on this car?
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Old 12-15-2010, 01:30 AM   #6
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did u get them from BUYHID?
It doesn't matter where you get them, they all do it. The map lights always have a small amount of constant power to them, but the normal halogen lights need so much power to light up that you don't see it. With the LEDs, they need so little power to light up that they are always dimly lit.
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how do you get into the map lights on this car?
Pull the little plastic covers off under the light. Theres little slots where you can use a screw driver to pry the lens off. The bulbs are a major pain to get out if you don't have the right tool.
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Old 12-15-2010, 01:42 AM   #7
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It doesn't matter where you get them, they all do it. The map lights always have a small amount of constant power to them, but the normal halogen lights need so much power to light up that you don't see it. With the LEDs, they need so little power to light up that they are always dimly lit.


Pull the little plastic covers off under the light. Theres little slots where you can use a screw driver to pry the lens off. The bulbs are a major pain to get out if you don't have the right tool.

And what is the right tool?
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Old 12-15-2010, 01:44 AM   #8
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Uhhh.. Let me see if I can find a picture. It was like a pair of thin curved needle nose pliers that I slid behind the bulb and pried out the base.


Last edited by TommyP; 12-15-2010 at 01:45 AM. Reason: Automerged Doublepost
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Old 12-15-2010, 01:45 AM   #9
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And what is the right tool?
a flat head screw driver for repairing eye glasses, and pop the lense's out
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Old 12-15-2010, 01:46 AM   #10
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a flat head screw driver for repairing eye glasses, and pop the lense's out
he meant for pulling the bulb out, cuz you certainly can't do it with your hands. Nowhere near enough room.

Last edited by TommyP; 12-15-2010 at 01:51 AM.
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Old 12-15-2010, 01:48 AM   #11
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tweezers
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Old 12-15-2010, 02:11 AM   #12
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Originally Posted by TommypSS/TC View Post
It doesn't matter where you get them, they all do it. The map lights always have a small amount of constant power to them, but the normal halogen lights need so much power to light up that you don't see it. With the LEDs, they need so little power to light up that they are always dimly lit.


Pull the little plastic covers off under the light. Theres little slots where you can use a screw driver to pry the lens off. The bulbs are a major pain to get out if you don't have the right tool.
mine dont do it but might be due the the size/amount of leds in the ones i ordered








....this one is in my trunk Muahahahaaa!!! that light actually is useful now



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Old 12-15-2010, 02:43 AM   #13
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I havent even looked, but how about for us guys with a sunroof who dont have the big map lights, we have the small ones under the mirror. Does that just pop out too?
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Old 12-15-2010, 02:51 AM   #14
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I havent even looked, but how about for us guys with a sunroof who dont have the big map lights, we have the small ones under the mirror. Does that just pop out too?
check the post above yours and thats what they were talking about was the mirror lights, not the dome light
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Old 12-15-2010, 03:09 AM   #15
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Thanks, im at work, and the interwebs blocks out most pics...sucks.
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Old 12-15-2010, 03:59 AM   #16
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It is due to how the body controller for the lighting works and the transistorized relays used to control the factory bulbs. There is a very small amount of leakage current that wouldn't be enough to light a regular bulb but due to how little current is required to light a light emitting diode (LED) they will glow somewhat even when off. It's pretty common on a lot of cars that uses a computerized power module to control body lighting functions (which is done to provide the theater diming, battery rundown protection, etc.).

If it bothers you then you should be able to stop it by wiring in a small resistor in series with the LED. This will put enough load on the circuit to dissipate the leakage current when off so that the LED won't light up when off.
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Old 12-15-2010, 05:35 AM   #17
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Mine do it to.no biggie. my battery is good
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Old 12-15-2010, 10:31 PM   #18
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tweezers
That's what I used
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Old 12-22-2010, 05:03 PM   #19
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we have leds in pot lights and random light fixtures in the house to replace the hot halogens...even those are always dimly lit..with switches off...kinda weird lol
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Old 12-27-2010, 05:13 PM   #20
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i have an '08 sport and Im debating wether or not to get the LEDs for my Map Lights. How Much brighter are they than the 194s. i know they are a diff color, but did the interior get brighter. Also which version did you get? thanks in advance.
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Old 12-27-2010, 05:15 PM   #21
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i have an '08 sport and Im debating wether or not to get the LEDs for my Map Lights. How Much brighter are they than the 194s. i know they are a diff color, but did the interior get brighter. Also which version did you get? thanks in advance.
The stock bulbs are MUCH brighter than the LED's. The color looks color with the LED's, but they are no where near as bright and serve almost no purpose for reading something in the dark.
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Old 12-27-2010, 05:25 PM   #22
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Originally Posted by TommypSS/TC View Post
It doesn't matter where you get them, they all do it. The map lights always have a small amount of constant power to them, but the normal halogen lights need so much power to light up that you don't see it. With the LEDs, they need so little power to light up that they are always dimly lit.
If they were resistored correctly, they would function exactly as the filament bulbs do. They are probably over powered.
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Old 12-27-2010, 11:52 PM   #23
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The stock bulbs are MUCH brighter than the LED's. The color looks color with the LED's, but they are no where near as bright and serve almost no purpose for reading something in the dark.
Not mine, my leds are a LOT brighter than the stock halogens...I had no other reason to replace them other than brightness

heres a comparison pic


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