Understanding Your Situation

Physical impact or moisture can break the key fob’s case, dislodge internal components, damage the circuit board, or reduce battery contact—leading to weak signal, random operation, or failure to start/authorize the vehicle.

🚀 Immediate Steps to Take

  1. Try a fresh battery (correct type for your fob) and inspect/clean the battery contacts; if the case is cracked, hold it firmly closed while testing.
  2. If the fob got wet: remove the battery immediately, gently dry the exterior, and let the fob air-dry thoroughly before reinstalling a new battery (do not heat with a hair dryer).
  3. Use your spare key/fob if you have one, and keep the damaged fob away from the vehicle when troubleshooting to avoid confusing proximity detection.

Your Options

Replace the key fob battery and inspect the housing

Cost: $5-$20 Time: Same day

Install a new battery, verify the battery terminals are not bent/corroded, and check whether a cracked shell is preventing good contact. If the buttons are sticky or the case won’t close, a shell replacement may be needed.

âś“ Pros:
  • Lowest cost and fastest fix
  • Solves many “intermittent” issues caused by weak power or poor contact
âś— Cons:
  • Won’t fix a damaged circuit board or water intrusion
  • Cracked housings can keep failing even with a new battery

Replace the outer shell/case (reuse the electronics)

Cost: $15-$60 Time: Same day / 1-3 days

Move the internal circuit board and battery into a new compatible shell. This helps when the case is cracked, buttons are worn, or the key ring area broke, but the electronics still work.

âś“ Pros:
  • Cost-effective if the electronics are still good
  • Restores button feel and protects the internals
âś— Cons:
  • Not a solution for internal electronic damage
  • Requires careful handling to avoid damaging the board or seals

Professional diagnostic and refurbishment (locksmith/electronics specialist)

Cost: $40-$150 Time: Same day / 1-3 days

A qualified automotive locksmith or fob repair service inspects the fob, checks output, re-solders loose components, cleans corrosion, and confirms whether the fob can be reliably restored.

âś“ Pros:
  • May restore function without full replacement
  • Helpful for drop damage (loose parts) or minor corrosion
âś— Cons:
  • Not always successful, especially after heavy water exposure
  • Costs can approach replacement pricing depending on damage

Replace and program a new OEM key fob (Ford dealer)

Cost: $250-$600 Time: Same day / 1-3 days

Purchase an OEM fob and have it programmed to your 2024 Explorer. The dealer can verify compatibility by VIN and ensure all functions (lock/unlock, remote start if equipped, proximity) work correctly.

âś“ Pros:
  • Highest compatibility and reliability
  • Dealer can confirm correct part number and programming
âś— Cons:
  • Usually the most expensive option
  • May require an appointment and proof of ownership

Replace and program a compatible fob (mobile automotive locksmith)

Cost: $180-$450 Time: Same day

A locksmith supplies an OEM or high-quality aftermarket fob and programs it on-site. This is often faster and can be less expensive than a dealer, especially if you’re stranded.

âś“ Pros:
  • Convenient mobile service
  • Often lower cost than dealer with faster turnaround
âś— Cons:
  • Quality varies—aftermarket fobs can be inconsistent
  • Not all locksmiths support every trim/package or proximity features

⚠️ What to Avoid

✕ Don’t keep pressing buttons repeatedly if the fob is wet—remove the battery first to reduce the risk of shorting the circuit board.

✕ Don’t use super glue, tape, or metal objects inside the fob to “hold the battery in place”—it can damage contacts or short the board.

✕ Don’t buy a random online fob without confirming it matches your Explorer’s exact system (proximity/remote start/frequency/part number); incompatibility is common and can waste money.

⚠️ Common Mistakes to Avoid

  • Throwing away damaged key
  • Not salvaging electronics
  • Buying OEM when aftermarket works
  • Not considering case-only replacement

Frequently Asked Questions

Can a damaged key fob prevent my 2024 Ford Explorer from starting?

Yes. If your Explorer uses push-button start with proximity authorization, a damaged fob may not be detected, causing a “No Key Detected” or no-start condition. A weak battery, cracked case affecting battery contact, or internal damage can all reduce the fob’s signal.

If my key fob got wet, is it automatically ruined?

Not always. Remove the battery immediately and let the fob air-dry thoroughly. If there was saltwater exposure, sugary drinks, or visible corrosion, the chance of failure is higher and professional cleaning or replacement is often the most reliable path.

Will replacing the fob shell require reprogramming?

Usually no. If you are reusing the original circuit board and electronics, programming typically stays the same. Reprogramming is generally needed when you replace the fob electronics (a new fob).

Can I program a new key fob myself for a 2024 Ford Explorer?

In many cases, adding a new proximity fob requires specialized equipment and security access, so most owners use a dealer or qualified automotive locksmith. Requirements can vary by configuration and how many working keys you have.

⏱️ Urgency Note: If the damaged fob is your only working key, treat this as urgent—get a replacement programmed before the fob fails completely. If you’re seeing intermittent “No Key Detected,” replace the battery and arrange service soon to avoid being stranded.

Need Detailed Information?

Get vehicle-specific key fob compatibility, part numbers, and a complete price comparison for your 2024 Ford Explorer.

View Explorer Key Fob Guide →

Last updated: 2026-01-04