Operation CHARM: Car repair manuals for everyone.

Fog/Driving Lamp: Adjustments






The fog lights must be correctly aimed as part of the installation procedure. Poorly-aimed fog lights are of limited value.

The chart reproduced here shows the optimum position of the high-intensity zone of the fog lights, in relation to their horizontal and vertical centers, at a distance of 25 feet (7.6 meters) in front of the car.

Aim each fog light so that the top of the high-intensity zone is 4 inches (100 mm) below its horizontal center.

The vertical center of the high-intensity zone should coincide with the vertical centerline of the fog light, and under no circumstances be permitted to deviate more than 6 inches (150 mm) to either side.







Air flow foglights Vertical Adjustment







Air flow foglights Lateral Adjustment