1995 GMC Yukon Owner's Manual - Page 328

Contact your dealer to learn how to prepare your vehicle for longer storage periods. Bulb Replacement Before you replace any bulbs, be sure that all the lamps are off and the engine isn't running. Sealed Beam Headlamps 1. Remove the four screws from the headlamp retainer. 2. Pull the headlamp out and remove the retainer. 3. Unplug and remove the headlamp. 4. Plug in the new headlamp and put it in place. 5. Install the retainer to the headlamp and tighten the screws. 6-46