1998 GMC Savana Van Owner's Manual - Page 274

Composite Headlamps 1. Open the hood. 2. Locate the rear side of each of the headlamps. 5. Install a new bulb. Do not handle the glass part of the bulb. 6 . Reverse the previous steps to reinstall the headlamp. 3. Without removing the headlamp assembly itself, remove the bulb assembly from the back of the headlamp on the driver's side by turning the bulb to the left one quarter of a turn. 4. On the passenger's side, turn the bulb to the right one quarter of a turn. Also, to remove the bulb on the passenger's side, you will need to move the battery.