2006 GMC Yukon Owner's Manual - Page 426

9. Reinstall the turn signal assembly back into the vehicle placing the hook and posts on the inner side into the alignment holes first, then the outer side into the retainer bracket until you hear a click. 10. Reinstall the headlamp assembly. Side Identification Marker Lamps To replace a side identification marker bulb, do the following: 1. Locate the lamp gasket near the rear wheel to expose the service slot and pull back the edge. 3. Press the retainer clip (B), located behind the turn signal assembly, towards the outside of the vehicle. 4. Pull the turn signal assembly out of the vehicle. 5. Press the locking release lever, turn the bulb socket counterclockwise and remove it from the turn signal assembly. 6. Remove the old bulb from the bulb socket. 7. Install a new bulb into the bulb socket. 8. Insert the bulb socket into the turn signal assembly and turn it clockwise until it locks. 2. Using a flat tool, push into the slot to release the lamp housing. 3. Pull the housing out to expose the wiring harness and connector. 4. Unplug the lamp assembly harness from the housing. 5. Unplug the lamp. 6. Put in a new lamp and snap it into the housing. 7. Reinstall the lamp housing. 5-52