Quote, originally posted by dianebrat »Except in the case of the Vibe's they're using the headlights for DRL...I know folks say you're supposedly only getting 1/2 wave ground to them in daytime mode, but I've had them in a parking garage, and there was no difference in the intensity between them being on by themselves, and then me flipping the switch. (and yes, I know the difference between the two modes

)Diane I have a 2003, and when I start it up, and release the parking brake, the headlights come on in DRL mode. The dimmer switch has no effect, and the green indicator in the cluster is not lit up. Then if it is dark enough, about 15 seconds later, the headlights come on fully, evidenced by the dimmer switch being effective and the green indicator lighting. I can testify that the intial DRL brightness is lower than the full DRL brightness, I have a garage, and if I leave the door down when I start the car and release the brake, the lights shine on the white door, it is very apparent that when the full headlight mode kicks in, the lights get brighter. I can't say the DRLs are "half" bright, but noticeably less. Someday I will find the wire and put a multimeter on it, actually measure the difference in voltage to the headlights in DRL and full modes. I have a 2003, you have a 2006. I know they changed the DRL module in 2005, that's why you get the dome light fade, mine just switches off hard. It may be possible that with your newer DRL module, the DRLs are the same brightness as the full headlights, but I doubt it.Can you do a test on yours, maybe the next time you are in the parking garage and compare DRLs to full headlights and let us know if your 06 DRLs really are the same as the full headlights? Just make sure you're comparing DRLs (dimmer ineffective, no green indicator in the cluster) to full headlights. Full headlights will be the same whether you manually turn them on or the car decides to turn them on, but if that green indicator in the dash is lit, then it's full headlights.