2019 Dodge Challenger Keyless Module (RF Hub): Programming, Symptoms, and Replacement

Symptoms of a Failing 2019 Challenger Keyless Entry Module

A failing RF Hub has very distinct symptoms. Because it handles all key fob communication, its failure often appears suddenly and can be mistaken for a dead key fob battery. However, if both of your key fobs stop working at the same time, the RF Hub is the most likely culprit.

• "Key Fob Not Detected" Message: The most common symptom is a persistent "Key Fob Not Detected" or "No Fob Detected" message on the instrument cluster.
• Engine Will Not Start: The push-to-start button will be completely unresponsive, and the vehicle will not start.
• Backup Start Method Works: You may be able to start the car by pushing the start button with the nose of the key fob. 🎬 Watch this quick video showing how to use the push button start backup method. This works because it uses a low-frequency RFID signal that bypasses the main RF Hub receiver, confirming the hub is the likely point of failure.
• Remote Functions Fail: The lock, unlock, trunk release, and panic alarm buttons on the key fob will stop working completely.
• Remote Start Inoperative: The remote start function will fail to engage.
• Decreased Range: Before a complete failure, you might notice a significantly reduced range for your key fob and remote start.
• TPMS Warnings: The system may fail to display tire pressure values, as the RF Hub is also responsible for receiving these signals.

Associated Diagnostic Trouble Codes (DTCs)

A professional scan tool may find Body (B-series) or Network (U-series) codes stored in the vehicle's memory. Common codes related to RF Hub failure include:

• B1A71-13 to B1A75-13: These codes indicate an open circuit in the various passive entry antennas.
• B1A76-11 / B1A76-13: These point to a short or open circuit in the remote start antenna.
• U0140: Lost Communication with Body Control Module.
• B229B: Passive Entry Module (PEM) Internal.

Known Issues, Recalls, and TSBs

While there are no specific recalls for the 2019 Challenger RF Hub failing, its function is mentioned in a Technical Service Bulletin (TSB).

• TSB S2208000138RevA: This bulletin was released to address complaints of "Decreased Remote Start And RKE Range" and "Tire Pressure Sensors Values Are Not Displayed." This indicates that Dodge is aware of performance issues related to the RF Hub and its associated antennas.
• Vehicle Theft Target: The RF Hub is a known vulnerability for vehicle theft. Thieves can gain access to the vehicle's internal network, connect to the RF Hub, and program a new key in minutes. In response, Stellantis (Dodge's parent company) created a software update known as the "RF Hub Lockout" that prevents unauthorized key programming. This is a security update performed by dealers, not a fix for a faulty part.

Programming and Installation

Programming is required to sync the module with your vehicle's unique Vehicle Identification Number (VIN) and the security information stored in the Powertrain Control Module (PCM). This is a critical anti-theft measure.

• Who can program it? This procedure requires dealer-level diagnostic tools like wiTECH 2.0 or high-end professional tools from brands like Autel. A Dodge dealership or a qualified automotive locksmith can perform this service.
• Can I do it myself? No, DIY programming is not available for this module.
• What about the keys? When the RF Hub is replaced and programmed, your existing keys must be re-programmed to the new module at the same time.

Replacement Location

The RF Hub in the 2019 Dodge Challenger is located in the trunk area. It is mounted to the underside of the rear parcel shelf, near the rear speakers. It can be accessed by removing the trunk liner panel beneath the rear window.

Buying a Used 2019 Challenger Keyless Entry Module

Purchasing a used RF Hub is a great way to save money, but it requires careful attention to detail. Because these modules are tied to a specific vehicle's VIN, you cannot simply swap one from another car without proper programming.

• Match the Part Number: Ensure the part number on the used module matches your original exactly. The most current part number is 68394158AC, which replaces the older 68394158AB and 68394158AA versions. Using a compatible part number is essential for the programming to be successful.
• Physical Inspection: When you receive the used module, inspect it for any signs of physical damage, especially corrosion on the connector pins. Water leaks from the rear window or third brake light can sometimes damage electronics in this area.
• Programming is Still Required: A used module does not bypass the need for programming. It must be electronically configured to your car's VIN and security system by a professional. Be aware that some technicians may be hesitant to program used modules, so confirm with your locksmith or dealer beforehand.
• Why Used OEM is a Good Choice: There are no major aftermarket manufacturers for the RF Hub itself. A used OEM module is often the only alternative to an expensive new dealer part. It will have the correct firmware and hardware designed specifically for your vehicle, ensuring reliable operation once programmed.

Cost Breakdown

The cost to replace the RF Hub can vary significantly based on the part source and labor rates.

Frequently Asked Questions (FAQ)