Pontiac 2004 Grand Prix Owner's Manual page 337

Headlamp aiming is done with the vehicle's low-beam
lamps. The high-beam lamps will be correctly aimed
if the low-beam lamps are aimed properly.
The vertical headlamp aiming screws are under the
hood near the headlamps.
Adjustment screws can be turned with an E8 Torx
®
socket or T15 Torx screwdriver.
Headlamp Vertical Aiming
1. Find the aim dot on the lens of the low beam lamp.
®
2. Measure the distance from the ground to the aim
dot on the lamp. Record the distance.
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