2022 Ford Explorer — Key Fob Programming Guide

Quick reference

Item	Detail
FCC ID	Verify on your current fob’s inside label; commonly M3N-A2C931426 for 2020–2022 Explorer (varies by trim/options).
OEM Fob PN	Varies by VIN/trim and button set. Have a dealer/locksmith confirm by VIN to avoid mismatches.
Aftermarket Options	Refurbished OEM smart keys; reputable aftermarket shells; universal programmable smart keys (e.g., Xhorse/KeyDIY) via locksmith tools.
Battery Type	Most use CR2450 coin cell (some cases may use CR2032—check your fob).
Programmable On-Board?	Yes, but only to add a key if you already have two working admin (Intelligent Access) keys. With 0–1 key, dealer/locksmith tool required.
Cuts Required?	Yes. Emergency insert blade (HU101 sidewinder) must be cut to your door/ignition lock.

Step-by-step on-board programming

Important: The 2022 Explorer supports customer “add-a-key” only if you already have two working admin Intelligent Access (IA) keys. If you have fewer than two, on-board programming will not work; see the section below about dealer/locksmith programming.

Before you start

• Gather: two working IA fobs, the new unprogrammed fob, and your vehicle.
• Locate the backup key slot: inside the center console/forward console bin. Look for a rubber-lined pocket or icon showing a key. This is where the fob must sit for programming and in a dead-battery scenario.

Add-a-key procedure (with two working admin keys)

1. Sit in the driver’s seat with all three fobs. Close all doors.
2. Place Working Key 1 in the backup slot (buttons up, key ring end forward if applicable).
3. Press the START/STOP button once without pressing the brake. Wait for the cluster to acknowledge the key (you may see “Key recognized” or a chime). Do not start the engine.
4. Remove Working Key 1.
5. Within 10 seconds, place Working Key 2 in the backup slot.
6. Press the START/STOP button once (no brake). Wait for the acknowledgment.
7. Remove Working Key 2.
8. Within 10 seconds, place the NEW unprogrammed fob in the backup slot.
9. Press the START/STOP button once (no brake). Wait for confirmation that a new key has been programmed (message/chime). Some vehicles will display “Key programmed” or increment the number of keys.
10. Test: With the new fob removed from the slot, press the brake and START to verify the Explorer starts. Test lock/unlock, trunk, panic, and remote start (if equipped).

Notes

• Timing matters. If the vehicle times out, start again.
• If the process will not complete, either the two existing fobs are not both admin keys, the new fob is incompatible, or customer spare key programming is disabled in the BCM (a locksmith/dealer can enable and program).

Battery replacement

Most 2022 Explorer IA fobs use a CR2450 coin cell.

1. Slide the release to remove the emergency key blade.
2. Gently pry the case at the seam (use a plastic pry tool to avoid marring). Start near the key-blade slot.
3. Separate the halves and lift the battery. Note the polarity (+ facing you on most Ford IA keys).
4. Install a fresh CR2450 (or the cell type printed inside your fob). Avoid touching the battery faces with bare fingers.
5. Snap the shell together, reinsert the blade, and test lock/unlock.

Where to buy a replacement fob

• Dealer

  • Pros: Confirms the exact part by VIN; latest firmware; seamless programming.
  • Cons: Highest price.
  • Ballpark: $220–$420 for the fob, $90–$160 programming, $20–$40 blade cutting.

• Automotive locksmith

  • Pros: Mobile service; typically lower total cost; can supply refurbished OEM or quality universal smart keys; can enable customer spare key programming if needed.
  • Cons: Quality varies—choose well-reviewed pros.
  • Ballpark: $140–$300 for the fob (new/refurbished/OE-equivalent), $90–$140 programming, $20–$40 blade cutting.

• DIY/online (Amazon/eBay)

  • Pros: Lowest part cost; good for add-a-key if you already have two working fobs.
  • Cons: Risk of incompatible frequency/FCC ID; used fobs may be locked or water-damaged; you may still need a pro to program and cut the blade.
  • Ballpark: $40–$120 for refurbished OEM; $20–$50 for shells (no electronics).

Tip: Match by FCC ID on your current fob’s inner label and by button count/remote start icon. When in doubt, provide your VIN to a dealer/locksmith to confirm the exact service part number.

If on-board programming isn’t supported

Situations requiring a scan tool

• You have 0 or only 1 working key.
• The vehicle’s “customer spare key programming” is disabled in the BCM.
• The new fob’s FCC ID/frequency doesn’t match and must be re-sourced.

What the pro does

• Uses Ford IDS/FDRS or equivalent locksmith tooling to obtain security access (10-minute incode/outcode) and program the IA fob through the BCM.
• Cuts the HU101 emergency blade and verifies all functions (proximity start, lock/unlock, hatch, remote start if equipped).

Immobilizer details

• System: Ford PATS with Intelligent Access (proximity smart key).
• The immobilizer transponder is integrated in the fob and uses encrypted authentication; it cannot be cloned like older chip keys.

Cost expectations

• Mobile locksmith: typically $220–$420 total for one new fob cut and programmed.
• Dealer: typically $300–$550 total. You may need to bring the vehicle and proof of ownership.

Have only one working key now? It’s wise to add a spare before you’re stranded; programming is easier and often cheaper while one key still works.

Find a mobile locksmith or shop on Repairius.