To service the turn signal switch, first disconnect and isolate the battery negative cable. If applicable, unscrew the lever from the tilt steering column adjuster mechanism located on the left side of the column just below the multi-function switch stalk by turning it counterclockwise. Remove both the upper and lower shrouds from the steering column, followed by the lower fixed column shroud. Move the upper fixed column shroud to access the back of the multi-function switch, then remove the tamper proof mounting screws using a Snap On tamper proof Torx bit TTXR2OB2 or equivalent. Gently pull the multi-function switch away from the steering column to access and remove the screw securing the instrument panel wire harness connector to the multi-function switch connector receptacle, then disconnect the instrument panel wire harness connector. Remove the multi-function switch from the steering column. For installation, position the multi-function switch onto the steering column and reconnect the instrument panel wire harness connector to the multi-function switch connector receptacle. Install and tighten the screw securing the instrument panel wire harness connector to the multi-function switch connector receptacle to 2 Nm (17 in. lbs.), then install and tighten the two screws securing the multi-function switch to the steering column to the same torque specification. Install the lower fixed column shroud, followed by both the upper and lower shrouds onto the steering column. If applicable, install the tilt steering column lever onto the left side of the steering column by screwing it into place, and finally reconnect the battery negative cable.