GMC 2005 Safari Owner's Manual page 263

3. Pull out the taillamp assembly so you can see
the socket.
5. Remove the old bulb from the socket and replace it
with a new one.
6. Reverse Steps 1 through 4 to reinstall the taillamp.
4. Press the tab and
turn the socket
counterclockwise to
remove the socket from
the bezel. If the
socket does not have a
tab, turn the socket
counterclockwise
to remove the socket
from the bezel.
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