Oldsmobile 1999 Aurora - Manual (Page 272)

yellow blue
6-34
Low - Beam Headlamp Bulbs
If you need to replace a low - beam headlamp bulb, do
the following:
1. Remove the two bolts and pull out the headlamp
assembly for more hand clearance.
2. Twist the bulb assembly one - sixth of a turn
counterclockwise and pull out the bulb assembly.
3. Unclip the bulb
assembly from the
wiring harness and
replace the bulb.
4. Reverse Steps 1 through 4 to replace the bulb
assembly, headlamp housing, air cleaner cover
and tube.
5. Replace the headlamp assembly by aligning the pin
and tightening the two bolts to secure it.