2022 Jeep Cherokee Key Fob Programming Guide

As an ASE-certified electrical technician and automotive locksmith, I frequently get questions from Jeep owners about key fob replacements. If you’ve lost a key to your 2022 Jeep Cherokee or simply want a spare, modern security protocols make it a bit more complex than the older models. FCA (Fiat Chrysler Automobiles, now Stellantis) updated their security systems significantly in recent years, which directly affects how new keys are introduced to the vehicle.

Here is your comprehensive guide to understanding, replacing, and programming your 2022 Jeep Cherokee key fob.

Quick reference

Step-by-step on-board programming

If you are looking for a DIY "turn the key in the ignition three times" sequence, I have some bad news. The 2022 Jeep Cherokee does not support on-board, user-initiated key fob programming.

Why? Starting in 2018, FCA introduced a Secure Gateway Module (SGW) across their vehicle lineup to protect the vehicle's CAN bus from hacking. Because of this firewall, a standard OBD2 scanner—and certainly manual pedal/key sequences—cannot access the Radio Frequency Hub (RFH) to add new keys.

To program a new key fob to a 2022 Jeep Cherokee, the following professional procedure is required:

1. Locate the SGW module (usually under the dashboard) and connect an authorized bypass cable.
2. Connect a professional bi-directional scan tool or key programmer (like Autel, Smart Pro, or Dealer wiTECH 2.0).
3. Retrieve the vehicle's specific PIN code from the RFH or Chrysler's secure server.
4. Program the new transponder chip and proximity functions to the vehicle using the scan tool.
5. Laser-cut the emergency insert blade to match your door locks.

Battery replacement

While programming requires a pro, changing a dead battery is entirely DIY. If your Jeep is displaying a "Key Fob Battery Low" message, here is how to swap it out:

1. Remove the emergency key: Slide the mechanical latch on the bottom or back of the fob and pull the metal emergency key out.
2. Pry the shell apart: Insert the tip of a flathead screwdriver (or the emergency key itself) into the seam near where the key was resting. Twist gently to pop the two halves of the plastic shell apart.
3. Remove the old battery: Carefully lift the circuit board if necessary, and slide out the old battery.
4. Insert the new battery: Slide in a fresh CR2032 battery with the positive (+) side facing down (or matching the diagram on the casing).
5. Reassemble: Snap the two halves of the plastic shell firmly back together and reinsert the emergency key blade.

Where to buy a replacement fob

When sourcing a replacement key fob, you have three primary routes, each with pros and cons:

• The Dealership:
  • Pros: Guaranteed OEM part, guaranteed to work.
  • Cons: Most expensive route. Parts and labor can easily range from $250 to $400+.
• An Automotive Locksmith:
  • Pros: Usually much cheaper than the dealer. Mobile locksmiths come to you, which is a lifesaver in a "lost all keys" situation.
  • Cons: Prices vary by region. Expect to pay $150 to $250 for the fob, cutting, and programming combined.
• Amazon or Online Retailers:
  • Pros: Highly affordable upfront (aftermarket fobs can be $20–$50).
  • Cons: You still have to pay a locksmith to cut and program it. Some locksmiths refuse to program customer-supplied fobs because cheap aftermarket electronics often fail during the programming process, or they lack the correct Hitag AES transponder chip.

If on-board programming isn't supported

As mentioned, you cannot program this fob yourself. The 2022 Cherokee relies on an advanced immobilizer system using a Hitag AES (4A) transponder chip. This chip must perfectly sync with the vehicle's RFH (Radio Frequency Hub) to disable the engine immobilizer.

If you attempt to start the vehicle with an unprogrammed key, the vehicle will simply display "Key Not Detected" or refuse to crank. Expect to pay a professional for about 30 to 60 minutes of labor to bypass the SGW, pull the PIN code, and program the fob.

Don't let a lost key ruin your day. Find a mobile locksmith or shop on Repairius.