Hey AZ. So I purchased a 08 TL-S back in August 2012, Its been in the body shop getting repainted along with some work done (type s lip kit, CAI, Tiens suspension, camber kit etc). I purchased V-LEDS.com 9005 DRL Led since I notice one bulb was missing, so I plugged in the 9005 led turns on fine looks great, so I turned off the car & I noticed they were still on I walked away figure it would turn off, 2 mins later I remembered I had left somthing in the car as a approach the car I noticed the DRL were still on, I started playing with the parking/headlight switch to see if it can fix the problem so I stood around for a few mins & it was still on, so I just unplugged the bulbs so it wont drain my battery.

What can be the cause of this issue? Can I fix it myself?

Thanks for looking, hopefully someone has an answer.