Installation 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.
IMPORTANT:
- Replace a high beam bulb with another high beam bulb. The high beam bulb has a red gasket.
- Replace a low beam bulb with another low beam bulb. The low beam bulb has a gray tip and a yellow gasket at the base.
- Install the new bulb to the headlamp assembly by twisting the bulb clockwise in order to lock in place.
- Connect the electrical connector to the bulb.
- Install the headlamp assembly.
- Install the headlamp retainer pins.
- Rotate and lock the pins in place.
- Install the park/turn signal lamp assembly. Refer to PARK/TURN SIGNAL LAMP REPLACEMENT (EXCEPT AVALANCHE) or PARK/TURN SIGNAL LAMP REPLACEMENT (AVALANCHE) .
- Inspect the operation.