Update for someone else finding this thread, dealer wanted $135 to diagnose and no telling what to install. Bought this part # 84924354. For 2021 Silverado 2500 HD and it worked perfect. All fixed easy install. Turn steering wheel up and down, remove 1 screw on left side of clam shell, pop top off, replace switch . Part was only $38
I have a 2021 Silverado 2500hd and the wipers won’t shut off. They do adhere to speed control but when I turn to off they keep going regular speed. Had to pull fuse to get them to stop. Any suggestions? It’s under the 36 months but 40k miles. Will dealer charge me tons or should I fix myself?