2026 Jeep & Ram RF Hub / Keyless Module Programming, Fort Worth
Modern Jeep and Ram vehicles handle keyless entry, remote start, and push-to-start detection through a dedicated receiver module called the RF Hub — the Radio Frequency Antenna (RFA) module. When it fails or is replaced, the symptoms are unmistakable: fobs that used to work stop being detected, remote start quits, doors will not respond to the buttons, and push-to-start throws a "key not detected" message. This 2026 guide explains how Jeep and Ram RF Hub programming works, why the Security Gateway matters on newer trucks, and what a fair mobile price looks like in Fort Worth.
If your Jeep or Ram has stopped recognizing its fobs or lost remote start, our smart key programming and module programming services cover exactly this work — at your location.
What the RF Hub Does
The RF Hub is the vehicle's ears for everything wireless coming from your key fobs. It receives the radio signals when you press lock, unlock, or remote start, and on push-to-start models it detects the fob inside the cabin to allow the engine to start. It works alongside the immobilizer, which validates the transponder chip, but the RF Hub is specifically the receiver for the remote and passive-entry functions.
Because it sits at the center of keyless operation, an RF Hub fault does not cause one small problem — it breaks the whole keyless experience at once. That "everything wireless stopped working" pattern is the RF Hub's fingerprint.
The Security Gateway: A Firewall in Your Truck
Here is what makes 2018-and-newer FCA/Stellantis vehicles different. FCA added a Security Gateway (SGW) module — a firewall that blocks unauthorized writes to the vehicle network. Before any tool can program the RF Hub, register a fob, or write to most modules, it has to authenticate through the gateway.
This is a good security feature, but it means a plain scan tool cannot simply plug in and program these vehicles anymore. A properly equipped specialist unlocks the gateway through secure, authorized access as part of the job. Without that access, no aftermarket tool completes the programming — which is exactly why gateway support is non-negotiable for RF Hub and key work on these trucks and SUVs. Our Dodge/Ram/Jeep security-gateway guide covers this in more depth.
Symptoms That Point to RF Hub Work
"Key Fob Not Detected"
The signature message. On push-to-start Jeep and Ram, when the RF Hub cannot receive or authorize the fob, the cluster reports "key fob not detected" even with fobs that should work. Before condemning the module, a proper diagnosis checks for low fob batteries — a dead battery produces the identical symptom and costs a few dollars to fix.
Remote and Passive Entry Stops Working
Doors that no longer respond to the fob buttons, or a truck that will not unlock when you grab the handle on passive-entry models, point to the RF Hub not receiving signals. When the whole keyless suite goes down together, the receiver module is the prime suspect.
Remote Start Quits
Factory remote start depends on the RF Hub validating the fob's long-press signal. A failed or unprogrammed RF Hub can break remote start even when the engine and the rest of the vehicle are fine. If remote start died alongside keyless-entry problems, that clusters the fault at the RF Hub.
After an RF Hub Replacement
Install a new or used RF Hub and nothing keyless works — that is expected. The module has to be configured to your VIN and your fobs re-registered, with the security gateway unlocked to allow the writes. The part alone does not restore function.
How Jeep/Ram RF Hub Programming Works
A mobile specialist connects a professional scan tool with FCA/Stellantis platform support to the OBD-II port and works through:
- Diagnose first. Confirm the RF Hub is the fault — not dead fob batteries, antenna wiring, or an immobilizer issue.
- Unlock the Security Gateway on 2018-and-newer vehicles so the tool can write to the network.
- Configure the replacement RF Hub to your VIN and options.
- Re-register the fobs so lock, unlock, remote start, and push-to-start detection are restored.
- Verify with a clean scan and a function check of every keyless feature.
A stable power supply protects the module during writes. For realistic appointment length, see our programming time guide — gateway unlocks add a few minutes on top of the base job.
Jeep & Ram RF Hub / Key Programming: 2026 Fort Worth Pricing
As of July 2026, here are typical DFW mobile ranges. The module part is separate; key figures assume the fob hardware where noted.
| Service | Typical range | Notes |
|---|---|---|
| Add a push-to-start fob | $250–$650+ | Model-dependent; complex quoted after diagnosis |
| Add a transponder / remote-head key | $120–$250 | With a working key present |
| RF Hub module programming + fob re-register | Quote after diagnosis | Depends on platform + gateway unlock |
| All-keys-lost | Quote after diagnosis | Longer; secure access required |
| Used RF Hub reconfigure to VIN | Quote after diagnosis | Confirm platform support first |
RF Hub module work is quoted after a diagnosis because the required scope — gateway unlock, configuration, number of fobs — varies by year and model. That is the honest way to price a job whose difficulty you cannot know until you read the truck.
Why Diagnosis Comes First
The cheapest fix for many "fob not detected" calls is a $5 battery, not a module. Low fob batteries, a chafed antenna wire, or an immobilizer fault can all mimic an RF Hub failure. A responsible specialist reads the RF Hub and immobilizer data before condemning the module — replacing an RF Hub for a dead fob battery is exactly the kind of avoidable mistake that a careful diagnosis prevents. Our guide on avoiding locksmith scams covers the warning signs of shops that skip this.
Dealer or Locksmith for RF Hub Work?
You do not have to tow a Jeep or Ram to the dealer for RF Hub or key programming. A mobile specialist with gateway access runs the same procedure on site, usually the same day, and typically for less than the dealership rate. The dealer stays the right call for warranty-covered failures and VIN-recorded software campaigns. Our dealer vs. locksmith module programming guide covers when each one wins, and our Jeep, Ram, and Dodge key pages cover the key side.
Fort Worth Locksmith & Computer Programming is a mobile, 24/7 service-area business serving Fort Worth and Tarrant County. We also handle related Mopar electronics — WIN/SKIM/PCM programming — so a vehicle with layered security faults can be sorted in one visit.
Credentials and Compliance
Programming an RF Hub and unlocking a security gateway means writing to a vehicle's anti-theft and access systems, so legitimacy is essential. In Texas, automotive locksmiths operate under the Texas Department of Public Safety (DPS) Private Security program and a reputable specialist verifies vehicle ownership before performing any key or module work. Secure gateway access is coordinated through the National Automotive Service Task Force (NASTF), and the security standards these systems follow are published by SAE International.
Which Jeep and Ram Models Have the RF Hub
The RF Hub / RFA architecture is widespread across the modern FCA/Stellantis lineup, and the Security Gateway is standard on 2018-and-newer vehicles. Models we commonly see:
- Ram 1500, 2500, and 3500 — the trucks that most often turn up with "key fob not detected" and remote-start complaints, especially as fleets and work trucks accumulate miles and door-slam wear on the fobs.
- Jeep Grand Cherokee and Wrangler — high-volume SUVs where keyless entry and passive-entry faults are frequent, and where owners often add aftermarket electronics that can complicate the RF picture.
- Jeep Cherokee, Compass, and Gladiator — the broader Jeep range, all sharing the same keyless approach.
- Dodge Durango and Charger/Challenger — the passenger-side of the platform, with the same RF Hub and gateway considerations.
Because these vehicles share the Uconnect electronics backbone, a fault in the keyless system can sometimes present alongside infotainment or configuration quirks. A proper diagnosis isolates the RF Hub from the rest so you are not chasing the wrong module.
The Security Gateway Is Why DIY Often Stalls
More than any other brand, FCA/Stellantis is where do-it-yourself key and module attempts hit a wall — and the Security Gateway is the reason. Owners buy a used RF Hub or a blank fob, plug in a basic tool, and get nowhere, because the gateway blocks the write before it starts. This is not a defect; it is the anti-theft feature working as designed. The practical takeaway: for any 2018-and-newer Jeep or Ram, confirm that whoever does the work has gateway access before you buy parts. Without it, the parts sit useless.
A properly equipped mobile specialist handles the gateway unlock as a routine part of the job, so the whole thing — unlock, configure, re-register — happens in one visit at your location across Fort Worth and Tarrant County. It is the same reason our FCA security-gateway guide treats gateway access as the gating requirement for all of these vehicles.
Frequently Asked Questions
What is the RF Hub (RFA module) on a Jeep or Ram?
The RF Hub — also called the Radio Frequency Antenna (RFA) module — is the keyless-entry and passive-entry receiver on modern FCA/Stellantis vehicles like Jeep and Ram. It receives the signals from your key fobs for lock, unlock, remote start, and push-to-start detection. When it fails or is replaced, it has to be programmed and the fobs re-registered so the vehicle recognizes them.
Why does my Ram say 'key fob not detected' with a good fob?
A 'key fob not detected' message with fobs that should work often points to the RF Hub not receiving or authorizing the signal — from a module fault, a replacement that was never programmed, low fob batteries, or antenna wiring problems. A proper diagnosis reads the RF Hub and immobilizer data before condemning the module, because a dead fob battery mimics the same symptom.
Can a locksmith program a Jeep or Ram RF Hub module?
Yes. A mobile specialist with FCA/Stellantis platform support can program a replacement RF Hub and re-register your fobs on site. On 2018-and-newer vehicles this requires unlocking the Security Gateway (SGW) module to write to the vehicle, which a properly equipped specialist handles as part of the job.
What is the Security Gateway and why does it matter?
The Security Gateway (SGW) is a firewall module FCA added to 2018-and-newer vehicles that blocks unauthorized writes to the vehicle network. Any programming — RF Hub, fobs, modules — has to authenticate through the gateway first. A specialist with secure access can unlock it; without that access, no aftermarket tool can complete the programming, which is why gateway support is essential on these trucks and SUVs.
How much does RF Hub or Jeep/Ram key programming cost near Fort Worth?
As of July 2026, adding a push-to-start fob typically runs about $250 and up, and a transponder/remote-head key about $120 to $250. RF Hub module programming and fob re-registration is quoted based on the platform and whether a security-gateway unlock is required. All-keys-lost sits higher. We give an all-in quote after confirming your year, model, and key situation.
Does my remote start need the RF Hub programmed?
Factory remote start relies on the RF Hub receiving and validating the fob's long-press signal, so a failed or unprogrammed RF Hub can break remote start even when the engine itself is fine. If remote start stopped working alongside keyless-entry issues, the RF Hub is a prime suspect — but the vehicle configuration for remote start also has to be enabled, which programming confirms.
Can a used RF Hub be programmed to my Jeep or Ram?
Often yes, but the used module carries the donor vehicle's data and must be reconfigured to your VIN and re-synced to your fobs, with the security gateway unlocked to allow the writes. Some newer platforms lock more tightly. Confirm your specific year and model is supported before buying a salvage RF Hub, because the re-registration is what makes the swap actually work.
Jeep or Ram not detecting its fobs or lost remote start in Fort Worth? Call or text Fort Worth Locksmith & Computer Programming at (817) 668-3801. Tell us your year, model, and key situation, and we will diagnose before replacing anything — gateway access included — with an all-in quote up front.