Cadillac ESCALADE EXT 2004 Owner's Manual page 368

6. Remove the vertical pin from the headlamp
assembly by turning the end of the pin away from
you until it unsnaps and then pulling it upward.
7. Remove the headlamp assembly by lifting it up and
then pulling it out and away from the front of the
vehicle.
8. Disconnect the electrical connector from the lower
corner of the headlamp assembly. This will give you
better access to the headlamp assembly.
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10. Turn the bulb connector counterclockwise and
remove it with the old bulb from the headlamp
assembly.
9. Remove the rubber,
circular-shaped bulb
cap of the affected bulb
from the headlamp
assembly.