GM Service Manual Online
For 1990-2009 cars only

Turn Signal Switch Does Not Stay in Turn Position for GMC Truck GMC P42 Commercial Chassis 1999

Cause

Action

Foreign material or loose parts are impeding the movement of the yoke.

Remove the obstruction.

The detent or the cancelling springs are broken or missing.

Replace the spring.

All other causes, excluding the above.

Replace the switch.