We had to have a few key memory things reprogrammed--I think they didn't read the form right the first time. It takes about 10 minutes and requires the programming computer and someone who knows how to run it, but it isn't too difficult. I left my DRL's off--I still know when to turn on my lights, and the only studies that show DRL's help are from Northern Latitude countries--Canada & Sweden. IMHO,they are counterproductive and hokey looking, and may increase the visibility to a CHP if I'm having an extra good time on the road. Does anyone know how to "program" the Daytime Running lights ? The Video says to take it to your dealer but there must be another way?