Removal Procedure

Insert a flat bladed tool under the front edge of the front door switch.
Push the tool firmly towards the switch to disengage the retainer.
Lift up on the rear of the switch plate to remove it from the door trim panel.
Disconnect electrical connectors.

Fig 1: Disengaging Retainer & Removing Switch Plate
Courtesy of GENERAL MOTORS CORP.
Remove the appropriate switch from the bezel by disengaging the side snap walls with a small flat bladed tool.

Fig 2: Removing Appropriate Switch From Bezel
Courtesy of GENERAL MOTORS CORP.