Oldsmobile 2004 Alero - Manual (Page 270)

Bulb Replacement
For the type of bulb to use, see Replacement Bulbs on
page 5-52. For any bulb changing procedure not
listed in this section, contact your dealer.
Halogen Bulbs
{ CAUTION:
Halogen bulbs have pressurized gas inside
and can burst if you drop or scratch the bulb.
You or others could be injured. Be sure to read
and follow the instructions on the bulb
package.
Headlamps
1. Lift up on the two retaining clips which secure the
headlamp assembly.
2. Lift and pull the headlamp assembly forward, out of
the mounting bracket.
3. Remove the rubber cap covering the bulb assembly.
4. Turn the bulb assembly retainer counterclockwise
one-sixth of a turn and pull out the bulb assembly.
5. Unclip the bulb assembly from the wiring harness.
6. Replace the bulb.
7. Reverse Steps 1 through 5 to reinstall the bulb
assembly and headlamp housing.
5-50