GMC 2000 Sierra 1500 Pickup Owner's Manual page 346

A. Stoplamp
B. Turn Signal Lamp
-
C. Back up Lamp
3. Press the release tab and turn the bulb socket
counterclockwise to remove it from the
taillamp housing.
4. Pull the bulb straight out from the socket.
5. Press a new bulb into the socket and turn the socket
clockwise into the taillamp housing until it clicks.
6. Reinstall the rear lamp assembly and tighten
the screws.
7. Close the tailgate.
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