GM Service Manual Online
For 1990-2009 cars only

Problem

Action

A switch is loose due to mounting screws.

Tighten the mounting screws. Refer to Turn Signal and Multifunction Switch Assembly - Disassemble - Off Vehicle and Turn Signal and Multifunction Switch Assembly - Assemble - Off Vehicle .

Interference of the switch with the other components

Remove the interference.

Foreign material is disrupting the operation of the switch.

Remove the foreign material.

Faulty switch

Replace the switch. Refer to Turn Signal and Multifunction Switch Assembly - Disassemble - Off Vehicle and Turn Signal and Multifunction Switch Assembly - Assemble - Off Vehicle .