Headlamp: Adjustments

Service Procedures

Front Headlamp Alignment

Headlamp Unit Alignment Vehicle Preparation

- Verify headlamp dimmer switch and high beam indicator operation.

- Inspect and correct damaged or defective components that could interfere with proper headlamp alignment.

- Verify proper tire inflation.

- Clean headlamp lenses.

- Verify that luggage area is loaded as the vehicle is routinely used.

- Vehicles equipped with automatic load leveling suspension should be driven normally for approximately 5 km (3 miles) before attempting a proper headlamp unit alignment.

- Fuel tank should be full. Add 2.94 kg (6.5 lbs.) of weight over the fuel tank for each estimated gallon of missing fuel.

Alignment Screen (Halogen)





Alignment Screen (HID)





- Position vehicle on a level surface perpendicular to a flat wall 7.62 meters (25 ft.) away from front of headlamp lens (4).

- If necessary, tape a line on the floor 7.62 meters (25 ft.) away from and parallel to the wall (3).

- Rock vehicle side-to-side three times and allow suspension to stabilize.

- Jounce front suspension three times by pushing downward on front bumper and releasing.

- Measure the distance from the center of headlamp lens to the floor. This is the axis of reference point and there will be a visible mark in the center of the lens. Transfer measurement to the alignment screen with tape (1). Use this line for up/down adjustment reference.

Headlamp Unit Adjustment (Halogen And HID)

Turn the low beam headlamps on so that they project on the screen. Adjust the upper edge of the high intensity zone cut off (2) to project at the horizontal lamp center line (1) for the halogen system. For the HID equipped vehicles, adjust the upper edge of the high intensity zone cut off (2) 53 mm (2.1 in.) below the horizontal center line (5). Horizontal aim is preset and cannot be adjusted. The high beam pattern should be correct when the low beams are aligned properly. To adjust low beam headlamp vertical alignment, rotate adjustment screw (1) to achieve the specified high intensity zone cut off location.