LED "bulb" reverse lights? - Kia Forum

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post #1 of 10 (permalink) Old 04-09-2019, 11:23 PM Thread Starter
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LED "bulb" reverse lights?

The thread about replacing the reverse light assembly got me thinking...

Has anyone changed the white reverse lights to LED "bulbs" that are brighter than OEM?

From what I am reading, there is sometimes a problem with some bulbs low resistance in the circuit causing fast flash turn signals. Not all of them do this though.

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post #2 of 10 (permalink) Old 04-10-2019, 09:39 PM Thread Starter
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I'm looking at these. The load resistor seems to only be a problem in the turn signal position.

Yorkim 7440 Led Bulb, 7443 Led Bulbs, 7440 LED for Reverse Light, Back Up Light, Brake Light, T20 W21W Ultra Bright 5730 33SMD - Pack of 2, White https://www.amazon.com/dp/B07JLSRFWQ..._JGQRCbJZ2CNV4
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post #3 of 10 (permalink) Old 04-11-2019, 12:55 AM
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a fast flash condition in a turn signal is common if placed in a vehicle with out load resistors as the can bus system has issues with these type of bulbs.

The only issue I can immediately think of for reverse lights would be a error possibly getting tripped as a burned out bulb on reverse lights but that would depend on KIA as to there use of the monitoring side of that circuit, I would try bulbs rated as having can-bus error free in the description.
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post #4 of 10 (permalink) Old 04-11-2019, 04:54 AM
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Originally Posted by polizi212 View Post
a fast flash condition in a turn signal is common if placed in a vehicle with out load resistors as the can bus system has issues with these type of bulbs.
The CAN bus has nothing to do with the fast flash problem. The bus simply sends ones and zeroes from one processor to another. Since LEDs draw significantly less current than conventional bulbs, the turn signal flasher interprets this as an open circuit or blown bulb. Federal specifications on vehicle lighting require a change in the flashing rate to warn the driver to replace the defective bulb. This is not a new requirement; it goes back decades.

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post #5 of 10 (permalink) Old 04-11-2019, 05:41 AM
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A side note to this issue, is the manual states that only the dealer should changed the reverse light bulbs. I have replaced almost all of my halogens to LED, but have not tried the reverse or rear indicators as yet. Has anyone accessed these themselves, or should I get the dealer to do it at an inflated cost?
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post #6 of 10 (permalink) Old 04-11-2019, 07:10 AM
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Originally Posted by karlh View Post
The CAN bus has nothing to do with the fast flash problem. The bus simply sends ones and zeroes from one processor to another. Since LEDs draw significantly less current than conventional bulbs, the turn signal flasher interprets this as an open circuit or blown bulb. Federal specifications on vehicle lighting require a change in the flashing rate to warn the driver to replace the defective bulb. This is not a new requirement; it goes back decades.
Yes you are correct that was my error for not reading my post twice as I was multi taking and didn't get that right.
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post #7 of 10 (permalink) Old 04-11-2019, 09:35 AM
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Quote:
Originally Posted by TexanEagleScout View Post
The thread about replacing the reverse light assembly got me thinking...

Has anyone changed the white reverse lights to LED "bulbs" that are brighter than OEM?

From what I am reading, there is sometimes a problem with some bulbs low resistance in the circuit causing fast flash turn signals. Not all of them do this though.
I didn't use LED's but put in these 50 watt Halogen's:
Search my thread SX Back-up Bulb Upgrade 4/9/2017

" Cool SX Back-up Bulb Upgrade #795 12v
I wanted more light when backing up. The stock bulb in my 2017 SX was 21 watt.

I found a 12v 50w Halogen bulb on Amazon (from CEC Industries), cost was $15.90 for a two-pack with shipping. I put them in this morning.
They are more than two times brighter. "

Love my Honda ST1300 motorcycle
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post #8 of 10 (permalink) Old 04-11-2019, 11:05 AM
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I found a 12v 50w Halogen bulb on Amazon (from CEC Industries), cost was $15.90 for a two-pack with shipping. I put them in this morning.
They are more than two times brighter. "
And probably two times hotter.
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post #9 of 10 (permalink) Old 04-11-2019, 06:04 PM
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On many cars, the reverse lights are harder to access, because it's not mandated to have them to drive, so no need to replace them on the road.


Also, word of caution about using LED on brake lights - when I tried that on my Kia Soul 2011, the Electronic Stability Control (ESC) light came on and system was de-activated. Apparently the ESC system uses the current flow trough the bulb's filaments to detect the braking... so lower powered bulbs meant de-activating ESC.

So it goes...
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post #10 of 10 (permalink) Old 04-12-2019, 09:34 PM
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Quote:
Originally Posted by karlh View Post
And probably two times hotter.
I agree, you are right they are hotter, but my back up lights are only on a short time during back up.

Ha but they are a lot brighter

Love my Honda ST1300 motorcycle
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