TrailBlazer 2WD L6-4.2L VIN S (2003)
1. Remove the 3 screws that retain the switch bezel to the seat.
2. Partially remove the switch bezel from the seat.
3. Remove the seat switches from the switch bezel by releasing the retaining tabs.
4. Remove the lumbar switch from the switch bezel by releasing the retaining tabs.
5. Remove the switch bezel from the seat.
INSTALLATION PROCEDURE
1. Install the lumbar switch to the switch bezel, verifying that the retaining tabs are fully seated.