4 Yellow Warning Lights (ABS, Brake, Tire, 4x4)

[stonecutter908]

I have been getting a series of 4 yellow warning lights (ABS, Brake, Tire pressure monitor, and 4x4 with triangle and !) on the cluster of my 2004 X3 3.0i 6sp. All four lights are popping up together. After I stop and start the SAV, they reset and then pop up again sometime during my next drive. No set pattern as to when they are occurring but they always come on together. The X3 is driving like normal without any noticeable changes. I am thinking it is a bad sensor since the four lights are coming on together. I am going into the dealer this week to have it looked at and hoping it will throw a code when it is in to help diagnose.

Has anyone ever encountered this before? I have seached this forum and the others and not found any similiar posts which leads me to believe this isn't a known or common problem. The warning lights are significant enough to put fear in me that something is mechanically wrong, bigger than a simple bad sensor.

Thanks.