I hope someone can help. I have replaced my instrument cluster several times, and do not have the original. I need a part number for an instrument cluster for a Z71 with the computer that lets you choose driver 1 or 2, gives you the % life left on oil, MPG etc (all of the computer functions come from using the left side steering wheel control buttons. Need a for sure part number with these functions (which include, setting the puddle lights, how long the lights stay on after you exit the car, driver 1 or 2 selection, language, etc (can't remember all the functions, but being a Z71, should have all of them). Dealer is of no help, even with the VIN. All help is appreciated.