GM Service Manual Online
For 1990-2009 cars only

Condition

Causes

The turn signal will not stay in the turn position.

    â€¢ Foreign material is impeding movement of the yoke.
    â€¢ Loose parts are impeding movement of the yoke.
    â€¢ A detent is broken.
    â€¢ A detent is missing.
    â€¢ A canceling spring is broken.
    â€¢ A canceling spring is missing.