Originally Posted by bene

Just for an update. It's not DRLs causing the LEDs to flicker at least not on mine. Upon further observation, my DRL housing socket for the LED has given up the ghost. I have to buy a new one from Autozone to replace it as it doesn't firmly hold the LED 3157 light in it to get good contact on power.

FWIW, the LEDs were cool to touch even when it was on for minutes to an hour.