Before you begin:
* Park on a level surface: This is crucial for accurate adjustment. An uneven surface will lead to inaccurate results.
* Measure the distance: Find a wall or a blank area at least 25 feet away from your Jeep. Mark this distance clearly.
* Turn on your headlights: Make sure your headlights are on (low beams).
Adjustment Process:
1. Locate the adjustment screws: With the headlights on, carefully examine the back of each headlight housing. You'll find two screws:
* Vertical Adjustment: This screw controls the up and down aim.
* Horizontal Adjustment: This screw controls the left and right aim. These screws are usually clearly labeled or their function is easily determined by gently turning them.
2. Mark the current position: Before you start adjusting, lightly mark the initial position of each screw with a piece of tape or a marker. This will allow you to return to the original settings if needed.
3. Adjust the vertical aim: Have someone observe the light beam on the wall while you make adjustments. The goal is to have the headlights aimed slightly downward, not directly horizontal. The center of the beam should be slightly below the horizontal center of your headlight, generally aiming toward the bottom of the wall but not pointed sharply downwards. Adjust the vertical screw accordingly to achieve this.
4. Adjust the horizontal aim: Make sure both headlights are aimed to the same height and are centered. Use the horizontal adjustment screws to aim the beams so they're both pointing straight ahead. They should be perfectly aligned, with both beams hitting the same horizontal line on the wall.
5. Check your work: Repeat steps 3 and 4 until you're satisfied with the headlight alignment. It's best to take your time and make small adjustments.
6. Re-check from a distance: It's a good idea to check the headlight alignment from a greater distance (further than 25 feet) to ensure the overall beam pattern is correct.
Important Notes:
* Different trim levels may have slight variations in access. If you have trouble locating the screws, consult your owner's manual or search online for a diagram specific to your year and model.
* Be careful not to overtighten the screws.
* If you're uncomfortable making these adjustments yourself, take your Jeep to a qualified mechanic or automotive specialist. Incorrect headlight adjustment can be dangerous.
If you can't find the screws easily or are unsure, consulting your Jeep Wrangler JK owner's manual is highly recommended. You can often find digital versions online as well. A quick YouTube search for "Jeep Wrangler JK headlight adjustment" might also be helpful to visually see the process.
