Hey DP, I've been reading older posts about this topic and havent seen anyone with lights coming once im on the highway. It hasnt come with key on start up, only once im on the highway. I get both lights and DIC service brake system and the chime sound, i happened to turn the radio volume down and the chime went away. The DIC service brake message goes away once the chiming is done(about 15-20 seconds) ABS, brake light stay on until I shut it off and restart then its fine. Any idea's? I keep reading about the ground from the EBCM being corroded. I see the 2 black wire's that come out of the harness under the driver side. Anyone know which one it is? And is there a thread on cleaning procedure? Thanks for any help. The truck is the 2003 in my sig panel.
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No one huh......

I have this same problem with my 06. I have been tryin to figure it out but everyone else ploblem is right when u start it. it could take 30 seconds to up to 2 min before the light comes on. Also I have noticed that when I had superchips programmer the lights didn't come on. But when I went to ppe n now efi they come on. Hope someone can tell us something