GM Service Manual Online
For 1990-2009 cars only

Turn Signal Does Not Indicate Lane Change for Chevrolet Optra 2006

Checks

Action

Check for a broken lane change pressure pad or a broken spring hanger.

Replace the lane change pressure pad or the spring hanger.

Check for improper functioning of the lane change spring.

Replace the lane change spring.

Check the turn signal switch for improper installation.

Replace the turn signal switch.