1999 GMC Jimmy Owner's Manual - Page 320
1999 GMC Jimmy Manual
Page 320 highlights
yellowblue Bulb Replacement Before you replace any bulbs, be sure that all the lamps are off and the engine isn't running. See "Replacement Bulbs" in the Index. For any bulb changing procedure not listed in this section, contact your GM dealer's service department. Headlamps One-Piece Composite Headlamp System 1. Open the hood. Halogen Bulbs CAUTION: Halogen bulbs have pressurized gas inside and can burst if you drop or scratch the bulb. You or others could be injured. Be sure to read and follow the instructions on the bulb package. 2. Remove the black retainer clips by lifting up. 3. Pull the headlamp assembly out. 4. Unplug the electrical connector. 6-34