GM Service Manual Online
For 1990-2009 cars only

Cause

Action

The multifunction turn signal/hazard switch is broken.

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

The lane change pressure pad or the spring hanger is broken.

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

The base wires are jammed.

Reposition the wire harness. Refer to Multifunction, Turn Signal, and Hazard Switch Replacement - On Vehicle .