How To Adjust Headlights on a Truck?

Driving a truck can be challenging, especially if your headlights must be adjusted correctly. This guide will provide step-by-step instructions on adjusting your truck’s headlights safely and effectively.

  1. Park Your Truck in Front of a Flat Surface. Start by parking your truck before a flat surface, such as a garage door. This will allow you to align your headlights properly.
  2. Locate the Adjustment Screws. Find the adjustment screws on your headlight assembly, typically located near the top of the headlight.
  3. Adjust the Screws. Use a flathead screwdriver to turn the screws. If your headlights are pointing too high, turn the screws clockwise to lower them. Conversely, if they’re pointing too low, turn the screws counterclockwise to raise them.
  4. Test Your Headlights. After adjusting your headlights, turn on your truck and drive around to ensure they provide adequate visibility. Repeat the adjustment process until they’re perfect.


How High Should Headlights Be From the Ground?

Headlights should be positioned at 3.5 feet (1.1 m) from the ground to avoid blinding oncoming traffic. Additionally, the headlights should be level with each other to provide a consistent light source and reduce the risk of dazzling other drivers. Proper alignment of the beams is also necessary to ensure they are shining where needed and not causing any glare.

How Far Should Your Headlights Shine While on Low Beam?

Low beams should ideally shine about 150 to 200 feet, providing clear visibility of the road ahead without blinding oncoming traffic. On the other hand, high beams should shine about 350 to 400 feet ahead, allowing for increased visibility in dark or foggy conditions.

What Is the Correct Position for Headlights?

The correct position for headlights is with one line going vertically from the top of the circle to the bottom and the other line going horizontally from side to side. The center of both plus signs should be the same height, so use a tape measure to check. Properly aligned headlights are necessary to avoid decreased visibility while driving and causing glare for oncoming traffic.

How High Should Headlights Be at 25 Feet?

While the standard height for headlights was 25 feet, some experts now recommend around 20 feet for newer cars with lower, sleeker designs. Ensuring your headlights are correctly aligned is essential to provide optimal visibility and avoid blinding other drivers.

How Far Should Your Headlights Shine While on High Beam?

High-beam headlights shine at an angle to illuminate the road 350 to 400 feet ahead or about twice as far as low beams. However, use high beams only when necessary, as they can blind other drivers and should not be used in areas with a lot of traffic or on well-lit roads. Remember to check your mirrors frequently to avoid blinding other drivers.


Properly adjusting your truck’s headlights is essential to ensure optimal visibility and safety on the road. Follow these simple guidelines to avoid decreased visibility, glare, and blinding other drivers.

About the author, Laurence Perkins

Laurence Perkins is the passionate car enthusiast behind the blog My Auto Machine. With over a decade of experience in the automotive industry, Perkins has knowledge and experience with a wide range of car makes and models. His particular interests lie in performance and modification, and his blog covers these topics in-depth. In addition to his own blog, Perkins is a respected voice in the automotive community and writes for various automotive publications. His insights and opinions on cars are highly sought-after.