GM Service Manual Online
For 1990-2009 cars only

Problem

Action

The cancel cam is broken.

Replace the cancel cam. Refer to Turn Signal Cancel Cam and Bearing Thrust Washer - Disassemble - Off Vehicle or Turn Signal Cancel Cam and Bearing Thrust Washer - Assemble - Off Vehicle .

The switch or the anchor bosses are broken.

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