1997 GMC Suburban Owner's Manual - Page 319

Bulb Replacement Before you replace any bulbs, be sure that all the lamps are off and the engine isn't running. For the proper bulb type, see "Replacement Bulbs" in the Index. Sealed Beam Headlamps 1 Remove the four screws from the headlamp retainer. :aloge--Bulbs I Halogen bulbs have pressurized gas inside and or can burst if you drop scratch the bulb.You or others could be injured. Be sureto read and follow the instructionson the bulb package. 2. Pull the headlamp out a.nd 1-emove the retainer. 6-37