I had an interesting set of warning lights come on today. I was on a dry road going about 10 mph and I floored it to hear the dual exhaust (truck was warmed up). I let off around 45mph and noticed that the VDC/SLIP/ABS lights were on. I pulled over to a parking lot, shut it down, started up again and the lights were still on. I couldn't find anything in the manual about that combination of light. I shut it off and started up again. After turning around in the parking lot, the lights turned off and never came back on again all day. Anyone else ever have this happen? Was this just a software glitch???