Removal Procedure

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2003 GMC Yukon XL, 2003 GMC Yukon, 2003 Chevrolet Tahoe, 2003 Chevrolet Suburban, and 2003 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

CAUTION: Halogen bulbs contain gas under pressure. Handling a bulb improperly could cause it to shatter into flying glass fragments. To help avoid personal injury:

Turn off the lamp switch and allow the bulb to cool before changing the bulb.
Leave the lamp switch OFF until the bulb change is complete.
Always wear eye protection when changing a halogen bulb.
Handle the bulb only by its base. Avoid touching the glass.
Keep dirt and moisture off the bulb.
Properly dispose of the used bulb.
Keep halogen bulbs out of the reach of children.

NOTE: Avoid touching the bulb or letting the bulb come in contact with anything damp. Oil from your skin or moisture on the bulb can cause the bulb to explode when the bulb is turned on. If either comes in contact with the bulb, clean the bulb with alcohol or a suitable degreaser and wipe the bulb dry.

Remove the front grille. Refer to GRILLE REPLACEMENT (CADILLAC) or GRILLE REPLACEMENT (AVALANCHE) in EXTERIOR TRIM .
Remove the headlamp retainer pins.
Pull out the headlamp assembly in order to access the electrical connector.

Fig 1: Removing Procedure Headlamp Assembly Or Headlamp Bulb Replacement (Cadillac) (1 Of 2)

Courtesy of GENERAL MOTORS CORP.

Disconnect the electrical connector.
Remove the rubber cup to gain access the headlamp bulbs.
Remove the bulbs.

Fig 2: Removing Procedure Headlamp Assembly Or Headlamp Bulb Replacement (Cadillac) (2 Of 2)

Courtesy of GENERAL MOTORS CORP.