GMC 1997 Safari Owner's Manual page 296

6. Remove the
composite assembly.
7. Turn the halogen bulb counterclockwise to remove
from the assembly.
8. Install the new bulb into the composite assembly by
turning it clockwise until it is completely tightened.
9. Replace the composite assembly by installing and
tightening all of the screws previously removed.
Front Turn Signal Lamps
1. Remove the two screws at the inside edge of the
parkingkurn signal lamp assembly.
2.
3.
Remove the
lamp assembly.
Squeeze the tab on the
side of the lamp socket
while turning the socket
counterclockwise.
4. Pull the socket out of the lamp assembly.
5. Pull the bulb from the socket.
6. Gently push the new bulb into
the socket.
7. Put the socket back into the lamp assembly and
turn
it
clockwise until it locks.
8. Put the parkingkurn signal lamp assembly back into
the vehicle and tighten the screws.