Lexus is a brand of luxury vehicles that offers a high-end driving experience. One feature that many Lexus models come equipped with is the Adaptive Front-lighting System (AFS).
The AFS feature is designed to improve visibility while driving at night. By automatically adjusting the direction and intensity of the headlights based on the speed and steering input of the vehicle.
However, there may be situations where you see an “AFS off” message on your Lexus dashboard while driving at night, and you wonder what could be the cause.
If you have experienced this, we encourage you to keep reading. Because we will discuss what could be the cause and how to fix it.
Table of Contents
- What is Adaptive Front Lighting System?
- AFS Off Lexus Meaning?
- What Causes AFS Off Lexus Message?
What is Adaptive Front Lighting System?
The AFS is a feature that enhances visibility and safety while driving at night by adjusting the direction and intensity of the headlights based on the vehicle’s speed and steering angle.
It regulates the headlight angle by detecting the steering wheel angle, the condition of the road, and the weight of the vehicle. Therefore, to keep the lights on the road balanced and not overly focused at one point, it uses an array of LEDs that cast low-beam light.
If you drive at night, these sophisticated car lights will come in very handy. Also, it lessens direct glare on the vehicles traveling in the opposite direction.
The “AFS Off” message on the Lexus dashboard indicates that the system has been disabled or isn’t working properly
AFS Off Lexus Meaning?
“AFS Off” on a Lexus is a warning message that can appear on the vehicle’s dashboard. It indicates that the Adaptive Front Lighting System is turned off or experiencing a malfunction.
This could be because of a number of things, including a blown fuse, a sensor issue, or a headlight leveling system issue.
This feature is designed to improve visibility and safety during nighttime driving. By adjusting the direction and intensity of the headlights based on the car’s speed and steering angle.
When you turn off the AFS system, the headlights will remain fixed in one position, which can compromise the driver’s ability to see obstacles or potential hazards on the road. This is especially true when driving on winding or curved roads, where the AFS system can make a significant difference in visibility.
The AFS system may also malfunction due to various reasons, such as a blown fuse, a faulty sensor, or a problem with the headlight leveling system.
If the AFS Off message appears on the dashboard, it is crucial to have the system checked by a qualified technician to ensure that the headlights are functioning correctly and providing optimal visibility.
What Causes AFS Off Lexus Message?
1. Faulty AFS
The most common cause of the AFS light coming on is a problem with the AFS system itself. This could be a malfunctioning sensor, software, or wiring issue–such as a blown fuse, which can cause the message to come up. You can replace the damaged components with new ones.
2. Low Battery Voltage
A low battery voltage can also trigger the AFS light. This can be caused by a number of things, such as leaving the lights on or having a bad alternator. Make sure your car’s battery is fully charged and in good condition. If it is bad, you can replace it.
3. Manual Turning off
While AFS can be a useful feature in many situations, there are times when you may want to turn it off. Whether you’re driving on a particularly curvy road or you want to conserve battery power, you might decide to turn it off manually.
Fixing this particular situation is very easy. You can fix it by locating the AFS button and switching it on.
4. Dirty or Damaged AFS Sensors
If the AFS sensors are dirty or damaged, they may not function properly and can cause the AFS light to come on. The AFS system uses sensors to detect incoming traffic and the angle of the road.
It also detects the angle of the car’s body and the steering wheel. Which helps the AFS system adjust the headlights’ direction based on the vehicle’s speed and driving conditions. Therefore, if one of these sensors malfunctions, it can cause the “AFS off” message to come up.
5. Faulty Wiring
Damaged or corroded wiring in the AFS system can prevent the system from receiving the signals it needs to operate correctly. This can lead to the AFS Off message appearing on your dashboard.
6. Faulty Headlight Control Module
The headlight control module controls the AFS system. If it is faulty, they may not be providing enough light for the system to work properly. This can cause the AFS Off message to appear.
7. Damaged Headlight Bulbs
This could be another reason why this warning message won’t disappear on your dashboard. You might have bad bulbs, causing your AFS not to come on. If this is the case, then you need a change of headlight bulbs.
8. Malfunctioning Steering Angle Sensor
The steering angle sensor is a key component of the AFS system. If it is malfunctioning, it can cause the AFS light to come on.
How Do I Disable Adaptive Front Lighting on Lexus RX?
- Press the “MENU” button on the Lexus RX’s steering wheel, then use the arrow buttons to cycle through the options until “AFS” appears on the dash display.
- By pressing the ‘ENTER’ button on the steering wheel, the system is turned off and the dash display indicator changes to ‘AFS OFF.
- To return to the main display, click the “MENU” button one more time. Repeat the process to change the display from “AFS OFF” to “AFS ON” to re-activate the system.
The AFS system on a Lexus is an essential feature that enhances visibility and safety during nighttime driving.
If the AFS Off message appears on the dashboard, it is important to have the system checked. Ensure that the headlights are functioning correctly, as driving without this feature can compromise the safety of the driver, passengers, and other road users.
If your AFS warning light comes on, it is important to have your car inspected by a qualified mechanic as soon as possible to diagnose and repair the issue.