See the following steps to replace:
Remove the two screws holding the housing/lens to the body as shown.
CHMSL Mounting Screw Locations
Separate the connector holding the housing and wiring harness to the body.
Turn the desired bulb socket a quarter turn and remove the socket and bulb from housing.
Pull the desired bulb straight from the socket.
CHMSL Bulb And Socket
Do not contaminate the bulb glass by touching it with your fingers or by allowing it to contact other oily surfaces. Shortened bulb life will result.
Outside Bulbs: Cargo Lamps
Inside Bulb: Center High Mounted Stop Lamp
Reverse the procedure for installation of bulbs and housing.