GM Service Manual Online
For 1990-2009 cars only

The switches are self adjusting when they are installed properly in the fully locked position. The twist lock type switches do not need any further adjustment.

  1. Slide the lower switch into the retainer until the switch plunger is fully depressed into the switch barrel.
  2. Turn the switch clockwise until travel has stopped and the switch fully locks into position.
  3. Slide the upper switch into the retainer until the switch plunger is fully depressed into the switch barrel.
  4. Turn the switch clockwise until travel has stopped and the switch fully locks into position.