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Home » Public Forums » GMCnet » New LED front turn lights not working right... (park lights during day ok, no turn at night...ugh)
Re: New LED front turn lights not working right... [message #369357 is a reply to message #355942] Sat, 02 April 2022 12:06 Go to previous messageGo to previous message
EricWaS is currently offline  EricWaS   United States
Messages: 7
Registered: August 2020
Location: Spokane, WA
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Junior Member
When installing LED bulbs for the turn/brake light signal system, you must use electronic flashers, and the front side marker lights need to be "non-polarity" sensitive. The front parking light switches the ground on the side marker light during the flashing process, so if it is polarity sensitive, it will not work. If you look at specs of the bulbs they will generally specify this, but if they don't, assume that they are polarity sensitive. I never would have guessed these bulbs even existed, knowing LEDs are typically polarity sensitive! Mine all work correctly now after learning and doing this.
 
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