2013-2019 Ford Flex Keyless Entry Module: Programming, Problems, and Replacement

Symptoms of a Failing Keyless Entry Module

When the keyless entry module begins to fail, it can cause a range of frustrating issues. Often, the symptoms are intermittent at first, becoming more consistent as the module degrades.

• "No Key Detected" Message: The most common symptom is a "No Key Detected" or similar warning on the instrument cluster, even when the key fob is inside the vehicle. This can prevent the push-button start from working.
• Inconsistent Starting: You may have to press the start button multiple times before the engine will turn over. In some cases, the vehicle may not start at all.
• Remote Functions Fail: The lock, unlock, and panic buttons on the key fob may stop working, or only work sporadically.
• Passive Entry/Lock Malfunctions: The ability to unlock the doors by touching the handle or lock them by pressing the button on the handle may cease to function.
• TPMS Light: In some instances, a failing module can also cause the Tire Pressure Monitoring System (TPMS) warning light to illuminate, as the module is often responsible for receiving signals from the tire pressure sensors.
• Associated Trouble Code: A common diagnostic trouble code (DTC) associated with a configuration or replacement issue is U2101: "Control Module Configuration Incompatible". This code specifically indicates that the module is not correctly programmed to the vehicle.

Known Issues, Recalls, and Technical Service Bulletins (TSBs)

While there are no major recalls specifically for the keyless entry module itself on the 2013-2019 Ford Flex, there are related service bulletins and recalls for the surrounding systems.

• TSB 20-2427: Some 2016-2019 Flex models may experience a loose driver's side B-pillar trim where the keyless entry keypad is located. This is caused by adhesive failure and can potentially expose the keypad wiring to the elements.
• B-Pillar Trim Recall: A related recall (NHTSA #25V732000) was issued for 2017-2019 Flex vehicles because the B-pillar trim could detach while driving, creating a road hazard. While not directly a module failure, this highlights a potential point of water or physical damage to related components.

No other widespread issues or recalls directly targeting the DA8T-19G481 module were found during research.

Buying a Used Keyless Entry Module: What to Look For

Purchasing a used keyless entry module is a great way to save money, but it requires careful attention to detail. This is a sensitive electronic part tied to your vehicle's security.

1. Match the Part Number: The most critical step is to match the engineering ID on your original module. The primary ID is DA8T-19G481. The two letters at the end (e.g., -AA, -AB, -AC) indicate revisions. While a newer revision might work, it is safest to match the full number exactly or confirm compatibility with a trusted source. The service part numbers, like DA8Z-19G481-A, often supersede the original engineering numbers.
2. Physical Inspection: Carefully inspect the used module for any signs of damage. Look for corrosion on the connector pins, cracks in the plastic housing, or evidence of water intrusion. Since the module is located inside the vehicle, any signs of moisture are a major red flag.
3. Verify the Source: Buy from a reputable auto recycler that offers a warranty. This protects you in case the module is defective, which is difficult to determine until you attempt to have it programmed.
4. Factor in Programming Costs: Remember that a used module is completely non-functional until it is programmed to your vehicle. This service is an additional cost that must be factored into your budget.

Programming and Installation

This is not a simple plug-and-play part. The physical replacement is straightforward, but the electronic programming is complex and mandatory.

Module Location

The keyless entry module (RFA) in the 2013-2019 Ford Flex is located behind the glove box, under the passenger side of the dashboard. Access typically involves removing the glove box assembly.

Who Can Program This Module?

Programming this module requires specialized equipment and software access.

• Ford Dealerships: A Ford dealer can always program a new or used module using their proprietary Integrated Diagnostic System (IDS) software.
• Qualified Automotive Locksmiths: Many professional automotive locksmiths have the tools (like high-end Autel scanners) and the necessary security credentials (NASTF) to access Ford's systems and program these modules. This is often a more convenient and sometimes more affordable option than a dealership.
• Independent Repair Shops: Most general repair shops do not have the expensive, specialized equipment or security clearance required for this job.

The process involves initializing the new module and then reprogramming all existing keys to it. Any keys not present during the programming session will no longer work with the vehicle.

Cost Comparison

The cost to resolve a keyless entry module issue can vary significantly based on the parts and labor source.

Frequently Asked Questions (FAQ)