Replaced OEM tail lights with LEDs

[CharlieMike06]

I have a 2018 3500. I replaced the OEM tail lights with aftermarket full LEDs. The new LED turn signals function correctly (blinking at the right speed), but the indicator on the dash flashes way too fast now, as it would if there was a light burnt out. Is there a way to correct this?

Also, there are 2 small LED "side markers" on the side of each tail light that will not go off, even after the truck has been off for hours! Any ideas why?

 

[diymirage]

sounds cool got a pic of em?

no idea why those sidemarkers stay on, to the best of my knowledge, there shouldnt be any power to them after the ignition is off, i would unplug them and test out the harnass, see what is hot, and then try to figure out why

 

[CharlieMike06]

The close-up is the side markers that will not go off.

 

[DripJust]

Can anyone tell me if I need someking of wiring adapter to Install 4th gen Tail light led into a 2010 laramie with the two connector brake/signal and back up halogen lights ?