Had a kid stop by last night with an 05 lly, ABS light, brake light and service bake system on. brake lights won't always go out when he shuts it off. and here is what is odd you can turn the heater fan off and the lights will go out shortly after that sitting there idling, crank the fan back up and a few seconds the lights will come back on. Fan only works on 5 too. can make it do this everytime. so far all the grounds look good. probly not going to mess with it but just thought I would post and see if someone has seen this one.