It could be ANYTHING! I once had a Seville that I had ABS and something else light up on the dash. So I finally go to the Dealer with it and while in a long line waiting to check into the service department I was taking the change out of my ash tray. I looked and saw something wierd in the lighter socket....a penny!! as soon as I took the penny out ALL the dash lights re set. I simply cut out of the service line and went home..
So anything can cause goofy glitches like that. Funny thing the penny never draind the battery or caused the lighter fuse to blow, just the dash lights went wonky.