Pontiac G8 manual Driver Side Passenger Side Similar

9-28 Vehicle Service and Care

4.At the wall, measure from the ground upward (A) to the recorded distance from Step 3 and mark it.

5.Draw or tape a horizontal line (B) on the wall the width of the vehicle at the height of the mark in Step 4.

Notice: Do not cover a headlamp to improve beam cut-off when aiming. Covering a headlamp may cause excessive heat build-up which may cause damage to the headlamp.

6.Turn on the low-beam headlamps and place a piece of cardboard or equivalent in front of the headlamp not being adjusted. Do not place it directly on

the headlamp. This allows only the beam of light from the headlamp being adjusted to be seen on the flat surface.

Driver Side (Passenger

Side Similar)

7.Locate the vertical headlamp aiming screws, which are under the hood near each headlamp assembly.

The adjustment screw can be turned with a 6 mm socket wrench.

8.Turn the vertical aiming screw clockwise or counterclockwise until the headlamp beam is aimed to the horizontal tape line.

9.Make sure that the light from the headlamp is positioned at the bottom edge of the horizontal tape line. The lamp on the left (A) shows the correct headlamp aim. The lamp on the right (B) shows the incorrect headlamp aim.

10.Repeat Steps 7 through 9 for the opposite headlamp.