GMC 1996 Sierra Owner's Manual page 295

Roof Marker Lamps
I . Remove the screws and lift off the lens.
2. Pull the bulb straight out of the socket.
3. Put a new bulb into the socket and push
it
i n until
it is tight.
4. Replace the lens and tighten the screws.
Tailgate Marker Lamps
1. Use a screwdriver to gently pry the lens/buIb
assembly from the lens holder.
2. Unplug the lens/bulb assembly at the connector wire.
3. Plug in a
new lendbulb assembly and push the
connector wire into the hole in the tailgate.
4. Snap the lens/buIb assembly into the lens holder.
Taillamps (Pickup Models)
I . Open the tailgate.
cp
I
2. Remove the two
rear lamp assembly
screws near the tailgate
latch and pull out the
lamp assembly.
3. Remove the screws
from the bulb retainer
and take it off the
lamp assembly.