Our turn-signal switch worked intermittently, so we couldnt wait to replace it with the new GM switch we got from Year One. Remove the screw that holds the turn-signal lever. Youll need to remove three more screws that secure the switch itself; two are visible now (arrows), and the third is accessible if you place the switch in either turn position. After removing the screws, unscrew the Hazard switch on the side of the column and lift the turn-signal switch up and out of the way. A neat trick for getting the switch harness out smoothly is taping the harness plug tightly to the wires.