GM Service Manual Online
For 1990-2009 cars only

Cause

Action

The turn signal switch is broken.

Replace the turn signal switch. Refer to Multifunction, Turn Signal, and Hazard Switch Replacement - On Vehicle .

The turn signal switch is mounted loosely.

Reinstall the turn signal switch. Refer to Multifunction, Turn Signal, and Hazard Switch Replacement - On Vehicle .

Foreign material is present.

Remove the foreign material.