1996 Buick Century Owner's Manual - Page 240

To replace the bulb assembly: Front lhrn and ParkingBulb and/or Sidemarker Bulb Replacement 1. Snap a new bulb into the wiring harness (A). Make sure the locking tab (B) is over the lock ( C ) . 2. Install the bulb assembly by putting the small tab (D) in the small notch in the retainer ring (E). 3. Turn the bulb assembly 1/6 turn clockwise to lock it in place. 1. Raise the hood. 2. Insert a screwdriver into the loop of the spring, which can be seen just behind the bulb assembly. 3. Pull the spring to the rear and slightly toward the outside of the vehicle until the detent releases from the notch in the headlamp mounting frame. 6-34