Have an 02 escalade. Yesterday the ABS light came on and a motor behind the left rear tire ran continuously, even with the ignition off. I disconnected the battery to see if a reboot would work it did not. The parking brake is not working either. Another thing I noticed is that while the traction control is normally off unless you engage the button, it is now on and you have to engage the button to turn it off. Seems to handle fine and I did some hard braking which also seemed fine.