When I went wheeling last week I put it into low like usual and the center lock came on and the abs came on and everything was fine. My lockers worked great, thank god cause I needed them and it all went well. But when I was on my way to leave I put it back into high and the ABS light wouldn't go away. All the other lights did though as usual. So the ABS light is still on. Is this something I should be worried about? Should I just dissconect the battery to make sure it isn't a glitch or what?