1995 GMC Yukon Owner's Manual - Page 335

4. Remove the screws from the bulb retainer and take the bulb retainer off of the lamp assemblq'. 5 . Pull the old bu Ib straight out of the socket. 6. Put in a new bulb and push it i n until it is tight. 7. Replace the bulb retainer. d. Replace the rear lamp assembly and tighten the screws. You may want to use a magnetic screwdriver when installing the screws. 9. Close the tailgate or rear doors. Exhaust System To help prevent damage to your exhaust system, do not continue to drive your vehicle if you notice: 0 0 Engine misfiring Loss of performance Exhaust system components hanging lower than normal 0 Loud exhaust system noises Other unusual operating conditions Have your engine and exhaust system serviced regularly. Three- Way Catalytic Converter (Gasoline Engines) Your vehicle's three-way catalytic converter is designed to reduce the pollutants in your vehicle's exhaust. Use only unleaded fuel in your vehicle. If you use leaded fuel. you could damage your three-way catalytic converter and other engine components. Oxidation Catalytic Converter (Diesel Engines) Your vehicle's oxidation catalytic converter is designed to reduce the particulates in your vehicle's exhaust. If your vehicle's oxidation catalytic converter ever needs to be replaced, it must be replaced with an oxidation converter intended for use with diesel engines only. 6-53