GM Service Manual Online
For 1990-2009 cars only

Condition

Causes

The turn signal will not indicate lane change.

    â€¢ The lane change pressure pad is broken.
    â€¢ The spring hanger is broken.
    â€¢ The lane change spring is broken.
    â€¢ The lane change spring is missing.
    â€¢ The lane change spring is misproportioned.
    â€¢ The base is jammed.
    â€¢ The wires are jammed.