Oldsmobile 2004 Alero - Manual (Page 269)

Start with the horizontal
aim. The adjustment
screws can be turned with
an E8 Torx
® socket.
Once the horizontal aim is adjusted, then adjust the
vertical aim.
1. Turn the horizontal aiming screw until the indicator
is lined up with zero.
2. Turn the vertical aiming screw until the level bubble
is lined up with zero.
Horizontal Aiming Vertical Aiming
5-49