What would be the cause of the ABS, Traction Control and Stabilitrack lights to all come on simultaneously on a 2012 Silverado? They are generally off when I start the truck but come on some time during the drive. The longer the truck has been off, the further into the drive I usually get before they come on. Also, if I happen to be braking when they come on, I get the ABS type vibration in the brake pedal. I am the 2nd owner of the truck and it belonged to my father before me, so I know it has not been abused. It currently has about 118k miles. Any info on a fix (especially if it is a DIY fix), would be greatly appreciated, however as my username implies, I am not experienced in any type of vehicle repair other than changing my oil and replacing brakes. Thank you all for the help!