1995 GMC Yukon Owner's Manual - Page 333

5. Put the socket back into the side marker assembly and turn it to the right to tighten it. 6. Replace the parkinghrn signal lamp assembly and tighten the screws. 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 in until it is tight. 4. Replace the lens and tighten the screws.