Removal Procedure

WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Ensure the headlamp switch is in the OFF position.
Lower the endgate.
Remove the screws retaining the tail/turn signal lamp assembly to the body.
Identify the bulb in need of replacement.
Turn the socket assembly and remove the bulb from the housing.

Fig 1: View Of Tail/Turn Signal Lamp (Stepside)
Courtesy of GENERAL MOTORS CORP.