2019-2021 Kia Sedona Adaptive Light Module: Fixing the AFLS Warning
This guide covers the common failures, programming requirements, and replacement costs for the adaptive headlight control module in your Kia Sedona.
- This module is NOT plug-and-play; it requires professional programming and calibration to the vehicle's VIN.
- The most common sign of failure is an 'AFLS' warning light on the dashboard, which means the headlights will no longer swivel.
- Ensure any replacement part matches the OEM number 92170-A9500 and is for a Sedona with the adaptive lighting option.
- A used OEM module is a cost-effective alternative, but installation must be done by a dealer or a shop with Kia-specific programming tools.
Common Symptoms of a Failing Sedona Adaptive Light Module
When the Adaptive Light Module begins to fail, your vehicle will provide several clear warning signs. Ignoring these can compromise your nighttime visibility.
- AFLS Warning Light: The most common symptom is an amber "AFLS" warning light appearing on the instrument cluster. This light indicates a malfunction within the adaptive lighting system. The system is disabled when this light is on.
- Headlights Won't Swivel: The primary function of the system is to turn the headlights with the steering wheel. A clear sign of failure is when the headlights remain fixed straight ahead, even when you are making a turn.
- Headlights Stuck in One Position: In some cases, the headlights may fail and get stuck in an incorrect position, such as pointing far down or off to one side. This can severely limit your view of the road.
- Flashing AFLS Light: A flashing AFLS indicator light also signals a system malfunction that requires attention. Kia recommends stopping the vehicle and restarting the engine; if the light remains, a diagnostic check is needed.
Associated Diagnostic Trouble Codes (DTCs)
A professional scan tool can read specific codes from the body control module or the AFLS module itself. While a comprehensive list is not readily available, codes related to headlight leveling, motor function, or communication errors are common. A code like B1611 (AFLS Motor Stuck) or other B-series (Body) codes are often associated with this system's failure.
CRITICAL: Programming and Calibration Are Required
This is NOT a plug-and-play part. A replacement Adaptive Light Module, whether new or used, must be professionally programmed and calibrated to your specific vehicle. This process involves:
- VIN Writing: The module's software must be coded with your vehicle's Vehicle Identification Number (VIN).
- Variant Coding: The module needs to be told about the specific options your Sedona has.
- Calibration: The system's "zero point" must be set so the headlights know their center position and can aim correctly.
This procedure requires a Kia-specific diagnostic tool (like GDS or KDS) or advanced aftermarket equipment. Failure to program the module will result in the AFLS warning light staying on and the system not functioning. A Kia dealership or a qualified independent shop specializing in module programming can perform this service.
Buying a Used Adaptive Light Module: What to Look For
Given the high cost of a new OEM module, a used unit from a reputable recycler is an excellent value. However, you must verify compatibility and inspect the part carefully.
- Verify the Part Number: The most critical step is to match the OEM part number. For the 2019-2021 Sedona, the correct part number is 92170-A9500. Do not install a module with a different number, even if it looks identical.
- Confirm Vehicle Options: This module is only for Sedona models originally equipped with adaptive headlights. It will not work on, or add the feature to, models with standard halogen headlights.
- Physical Inspection: Before purchasing, inspect the module for any signs of physical damage. Look for cracks in the plastic housing and check the electrical connector pins for any green or white corrosion, which indicates water damage. A module with corroded pins should be avoided.
- Purchase from a Reputable Source: Buy from a seller that offers a warranty and a clear return policy. This protects you in case the used module is also faulty.
Known Issues, TSBs, and Recalls
As of mid-2024, there are no specific recalls or widespread Technical Service Bulletins (TSBs) from Kia for the failure of the 92170-A9500 Adaptive Light Module itself. However, there are some related items:
- Headlight Performance: The Insurance Institute for Highway Safety (IIHS) gave the 2021 Sedona's headlights, including the curve-adaptive LED versions, a "Poor" rating due to issues with glare and inadequate visibility in some tests. This is a design characteristic and not related to a module failure.
- General Recalls: The 2019-2021 Sedona has been subject to other recalls for issues like seat belts and alternator terminals, but none directly target the adaptive lighting controller.
- Headlight Condensation: Kia has issued a general TSB (BOD055 R1) regarding moisture and condensation inside headlamp assemblies, which is considered normal in many cases. However, severe water intrusion could potentially damage electronic components like the AFLS module over time.
Cost Comparison for Replacement
| Part Type | Estimated Cost |
|---|---|
| New OEM (Dealer) | $450 - $600 |
| New Aftermarket | Not Commonly Available |
| Used OEM | $100 - $250 |
| Shop Labor (Installation & Programming) | $150 - $300 |
Note: Prices are estimates as of late 2024 and can vary based on location, supplier, and vehicle condition. The primary cost driver after the part itself is the specialized labor for programming.
Frequently Asked Questions (FAQ)
Do I have to take my Sedona to a Kia dealer to replace this module?
Not necessarily, but it's often the easiest option. Any repair shop that has dealer-level diagnostic tools for Kia, or specialized remote programming services, can perform the required VIN writing and calibration. A standard mechanic without this equipment cannot complete the job.
What does the 'AFLS' light on my dashboard mean?
The 'AFLS' light stands for Adaptive Front Lighting System. When it illuminates or flashes, it means the system has detected a fault and has been disabled for safety. You will still have standard low and high beams, but they will no longer swivel when you turn.
Can I just disable the adaptive headlights to turn the warning light off?
No, you cannot simply disable the feature to extinguish the warning light. The warning light indicates a fault in a factory-installed safety system. The only way to turn the light off is to diagnose and repair the underlying problem, which is often a failed module or sensor.
Is the Adaptive Light Module the same as the headlight ballast?
No, they are different parts. The ballast (or igniter) is a component used in High-Intensity Discharge (HID) or Xenon headlights to provide the high voltage needed to create light. The Adaptive Light Module is a separate computer that controls the swiveling motors for the adaptive function. Your vehicle has both if it is equipped with adaptive HID/LED headlights.
Technical Specifications
OEM Part Numbers: 92170-A9500 92170A9500
Controls the swiveling function of adaptive LED/HID headlamps based on steering angle and vehicle speed inputs.
We Have This Part in Stock
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- Kia Sedona: