GMC 1996 Suburban Owner's Manual page 292

Front ParkingTurn Signal Lamps with
Sealed Beam Headlamps
1. Remove the two screws
at the inside edge of
the parkingkurn signal
lamp assembly.
2. Remove the lamp assembly by swinging
it
out from
the inside edge and sliding it out at the outside edge.
3. Squeeze the tab on the
side of the lamp socket
while turning the socket
to the left.
4. Pull the socket out of the lamp assembly.
5. Push in gently on the bulb, turn it to the left and
remove it from the socket.
6. Put the new bulb in the socket, gently press in on the
bulb and turn
it
to the right until it is tight.
7. Put the socket back into the lamp assembly and turn
it
to the right until it locks.
8. Put the parking/turn signal lamp assembly back into
the vehicle and tighten the screws.
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