---
title: How to Aim Your Headlights After Installation
description: Learn how to properly aim J.W. Speaker headlights after installation. Includes step-by-step wall-aiming instructions for both DOT and ECE vehicles.
---
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April 28, 2026
# How to Aim Your Headlights After Installation
## Use the Wall-Aiming Method for Accurate Headlight Alignment
---
Aiming your headlights after installation is one of the most important — and most overlooked — steps of any headlight upgrade. Incorrectly aimed headlights reduce your visibility, can blind oncoming drivers, and may fail a vehicle inspection.
The good news: it takes about 10 minutes and requires nothing more than chalk or tape, a level, and a flat wall.
---
#### What You Need
- A flat, level surface to park on
- A flat vertical wall with at least **7.62 meters (25 feet)** of clear space
- Chalk, tape, or a marker
- A straight edge and level
- A screwdriver for the adjustment screws
---
#### Step-by-Step Aiming Instructions
### Step 1 — Park Close to the Wall
Park your vehicle on a flat surface, close to a wall, with at least **7.62 meters (25 feet)** of open space behind you.
---
### Step 2 — Mark Your Y-Axis Lines
On the wall, draw a **vertical line** from the ground up to the approximate **center height of each headlight**. You should have two vertical lines — one for the left headlight, one for the right.
These are your **Y-axis lines**.
---
### Step 3 — Mark Your X-Axis Line
Connect the two vertical center points with a **horizontal line** across the wall. Use a straight edge and level to make sure it's perfectly straight.
Then extend each vertical Y-axis line **upward approximately 3 feet** above the horizontal line.
Your wall should now look like two crosses — one for each headlight.
---
### Step 4 — Move the Vehicle Back
Reverse the vehicle in a straight line until the **front of the headlights are exactly 7.62 meters (25 feet) from the wall**.
---
### Step 5 — Turn On the Headlights
Switch on your headlights on **low beam** and observe where the beam hits the wall.
Look for the **Alignment Point** — this is the kink or angle in the beam's cutoff line. It should sit centered on the **intersection of the X and Y axis lines** you drew.
| Alignment Point Position | Action Required |
| --- | --- |
| Centered on the intersection | ✅ Correctly aimed — no adjustment needed |
| Above the intersection | ⬇️ Too high — adjust down |
| Below the intersection | ⬆️ Too low — adjust up |
| Left or right of the intersection | ↔️ Horizontal adjustment needed |
---
### Step 6 — Adjust Until Correctly Positioned
Using your vehicle's headlight adjustment screws:
1. Adjust **vertically first** (X-axis) until the Alignment Point lines up with the horizontal line
2. Adjust **horizontally second** (Y-axis) until the Alignment Point lines up with the vertical line
3. Repeat the process for the other headlight
4. Re-check both headlights after adjusting — adjusting one can sometimes affect the other
> 💡 **Tip:** Make small adjustments and re-check after each one. It is easier to dial in the aim gradually than to overshoot and start over.
---
#### ⚠️ Jeep Wrangler Owners
Jeep Wranglers have a **vertical adjustment screw only**. Horizontal adjustment is not possible through the standard headlight bucket.
If your Jeep headlights need horizontal adjustment, consult your **authorized J.W. Speaker dealer** for assistance.
---
#### Download the Full Instructions
Prefer a printed copy to take to the garage?
📄 **[Download the Headlight Aiming Instruction Sheet (PDF) — jwspeaker.com](https://www.jwspeaker.com/resources/#resource_type/attachment_instruction)**
---
#### Frequently Asked Questions
**Do I need to aim both headlights?** Yes — always aim both headlights individually. Even if one seems correct, re-check it after adjusting the other.
**Should I aim on low beam or high beam?** Always aim on **low beam**. High beam pattern follows from the low beam aim.
**How often should I re-aim my headlights?** Re-aiming is recommended after any headlight installation, after a significant impact or collision, or if you notice the beam pattern has shifted during normal use.
**My Jeep headlights are aimed too far left or right — what do I do?** Contact your authorized J.W. Speaker dealer. Jeep Wranglers do not have a horizontal adjustment screw, so dealer-level support is required for horizontal correction.
---
> 🔍 **Need help with installation or aiming?** Find your nearest authorized dealer at **[jwspeaker.com/dealers](https://www.jwspeaker.com/dealers/)**
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