1998 GMC Suburban Owner's Manual - Page 333

Sidemarker Lamps with Sealed Ream and Composite Headlamps 1. Remove the four screws 3. 7 Pull the bulb straight out of the socket. and pull out the parking/turn signal lamp assembly. 4. Put a new bulb into the socket and push it in until it is tight. 2. Reach through the opening and turn the sidemarker bulb socket to the left and remove it. 5 . Put the socket back into the sidemarker assembly and turn it to the right to tighten it. 6. Replace the parking/turn signal lamp assembly and tighten the screws. Center High-Mounted Stoplamp (CHMSL) The individual bulbs in the CHMSL are not replaceable. See your dealer for assistance. 6-41