I have a 2003 Silverado 2500HD with the 6.0, and an aftermarket remote start system (Dealer installed). On occasion, my ABS light comes on when I use the remote start. The dealer has tried replacing the remote start unit several times, even using different vendors for the remote start, and replacing the ignition harness, but the problem persists. Also, it seems to happen in colder weather. We know for sure that the remote start is causing the ABS light to come on, because we have removed the remote start for two weeks and the truck ran fine during that time. Has anyone heard of this type of problem? I have had 4 different remote starts put in the truck and I have had the same issue with the truck, so it is not a bad remote start unit. The remote start seems to be a trigger for a preexisting issue with the truck. The computer has also been reprogrammed several times. Any info or ideas would be useful.