Chrysler, Dodge, Jeep & Ram: FOBIK & WIN Module Keys (Keller TX)

Chrysler, Dodge, Jeep, and Ram — the Stellantis (formerly FCA / Mopar) family — share key and immobilizer systems that are distinctive enough to trip up a general locksmith. If you drive a Jeep Wrangler or Grand Cherokee, a Ram 1500, a Dodge Charger or Durango, or a Chrysler Pacifica around Keller and you have lost a key or one has stopped working, call or text (817) 968-3866 and we will identify exactly which system your vehicle uses.

Quick Answer

Chrysler, Dodge, Jeep, and Ram vehicles use several key styles: the well-known FOBIK ("fob-integrated key" — a fob you push into a dashboard ignition slot), traditional transponder keys, and modern proximity smart keys with push-button start. Many models route key data through the WIN module (Wireless Ignition Node). A replacement is cut and then programmed to the immobilizer/WIN so the vehicle recognizes it. A mobile locksmith does this on-site for most of these vehicles in the Keller area, commonly for $120–$475+ depending on the key type.

The Key Styles You Will Encounter

FOBIK (push-in fob key)

A signature Chrysler/Dodge/Jeep/Ram design: instead of a bladed key you turn, you insert a fob into an ignition slot and twist, or push a start button. The FOBIK contains the remote and transponder functions. Replacing one requires programming the new FOBIK to the immobilizer.

WIN module (Wireless Ignition Node)

On many FOBIK-equipped vehicles, the WIN module is the ignition/receiver unit that reads the fob and manages the start function. Key programming interacts with the WIN, and in some no-start situations the issue is the WIN module itself rather than the key. Diagnosis matters: a new key won't fix a failed WIN.

Traditional transponder keys

Some models use a conventional bladed transponder key that must be cut and programmed to the immobilizer.

Proximity smart keys (push-to-start)

Newer Jeep, Ram, Dodge, and Chrysler models use a proximity fob with push-button start and keyless entry. These are programmed as smart keys and sit at the higher end of cost.

The Replacement Process

1. Identify the system — year, model, and trim tell us FOBIK, transponder, or proximity, and whether a WIN module is involved.
2. Verify ownership — photo ID and proof the vehicle is yours.
3. Cut the mechanical blade (FOBIKs and proximity fobs still have an emergency blade for the doors).
4. Program to the immobilizer/WIN so the vehicle accepts the new key and it will start.
5. Test and offer a spare — confirm start, remote, and keyless functions, then cut a backup.

What It Costs

These are ranges, not quotes. The exact model, hardware, and add-a-key versus all-keys-lost determine the final number. Get a quote for your VIN before work begins.

When It Is the WIN Module, Not the Key

A recurring Keller scenario: a Jeep or Dodge that intermittently won't recognize the fob, won't come out of "park," or won't start — and the owner assumes the key died. Sometimes the real culprit is a worn or failing WIN module or ignition node. A key replacement won't cure a hardware fault in the ignition receiver. A proper diagnosis distinguishes a key/programming problem from a WIN module problem, so you don't pay for a key that was never the issue.

Locksmith vs. Dealer

• Mobile locksmith — cuts and programs FOBIK, transponder, and proximity keys on-site for most Stellantis vehicles, usually faster and cheaper, no tow.
• Dealer — an option for the newest proprietary platforms, but typically more expensive and requires an appointment plus a tow for a no-start vehicle.

Legitimate Access

Key and immobilizer work on these vehicles touches the anti-theft system, which is credentialed. The recognized framework is the National Automotive Service Task Force (NASTF) Vehicle Security Professional registry, through which qualified professionals responsibly access secure functions. That plus ownership verification is what a legitimate service looks like.

Local Context for Keller Drivers

Jeep and Ram are hugely popular across Keller, Southlake, Colleyville, Watauga, North Richland Hills, Haslet, Argyle, and Justin — Wranglers and Grand Cherokees in the neighborhoods, Ram trucks on the jobsites. The generational split is the same as the rest of the market: older models tend to be FOBIK or transponder, newer ones proximity smart keys. Because FOBIK and WIN systems are distinctive, having a technician who recognizes them on sight saves time and prevents a misdiagnosis.

Frequently Asked Questions

What is a FOBIK key?

FOBIK stands for "fob-integrated key" — the Chrysler/Dodge/Jeep/Ram design where you insert a fob into a dashboard ignition slot and turn or push start, rather than using a bladed key. It combines the remote and transponder in one unit and must be programmed to the vehicle when replaced.

My Jeep or Dodge won't start — is it the key or the WIN module?

It can be either. If the fob is intermittently unrecognized or the vehicle won't start or shift out of park, the Wireless Ignition Node (WIN) module can be at fault rather than the key. A new key won't fix a failed WIN, so a proper diagnosis comes first. Describe the symptoms when you call and we will help sort it out.

Can you program a Ram or Jeep proximity key on-site?

Yes. For most Ram, Jeep, Dodge, and Chrysler proximity (push-to-start) vehicles, a mobile locksmith programs a new smart key at your location — no dealership trip for the majority of models. Proximity keys are at the higher end of cost because of the hardware and programming involved.

How much is a Jeep or Dodge key?

A transponder key commonly runs $120–$260, a FOBIK $180–$375, and a proximity smart key $260–$475 or more. The exact model and hardware set the price, so get a quote for your specific vehicle.

Do I need proof of ownership?

Yes. A legitimate locksmith checks a photo ID plus registration, title, or matching insurance before making a key or performing immobilizer programming. It is standard practice and protects you.

Should I make a spare FOBIK or proximity key?

Strongly recommended. All-keys-lost on these vehicles is the most expensive scenario, and FOBIK and proximity hardware isn't cheap. Cutting and programming a spare while the technician is already at your vehicle costs far less than an emergency later.

Get Your Mopar Back on the Road

From a lost Wrangler FOBIK to a Ram proximity fob to a Charger that won't recognize its key, Keller Locksmith handles Chrysler, Dodge, Jeep, and Ram key replacement and immobilizer programming across Keller, Southlake, Colleyville, Watauga, North Richland Hills, and the surrounding Tarrant and Denton County areas. Call or text (817) 968-3866 with your year and model.

Written by the Keller Locksmith Automotive Locksmith Team — mobile Chrysler, Dodge, Jeep, and Ram key, FOBIK, and immobilizer service across Keller and north Tarrant County.