Replace Key Battery medium urgency

2024 Ford Explorer Dead Key Fob Battery: How to Get In and Start the SUV

A dead key fob battery on a 2024 Ford Explorer can leave you unable to unlock the doors remotely or trigger “No Key Detected.” The good news: your Explorer has a hidden mechanical key and an emergency start method so you can still get moving.

Understanding Your Situation

The coin-cell battery inside the Ford Intelligent Access key fob has drained, so the fob can’t transmit a strong signal for locking/unlocking or push-button start. The fob may still work intermittently when held very close to the vehicle, but replacement is the real fix.

🚀 Immediate Steps to Take

  1. Use the hidden mechanical key: Press the release on the fob to remove the emergency key, then unlock the driver’s door using the key cylinder (often behind a small cap/cover on the handle).
  2. Start using the backup method: With the fob inside the vehicle, follow the Explorer’s on-screen prompt for a low/dead fob battery (commonly placing the fob in the designated backup location, then pressing the brake and START/STOP).
  3. Replace the fob battery ASAP: Install a new coin-cell battery (commonly CR2032, but verify the exact type printed on your old battery or in the owner’s manual).

Your Options

DIY key fob battery replacement (coin-cell)

Cost: $3-$12 Time: Same day (10-20 minutes)

Open the fob case carefully, note the battery orientation (+/-), replace with a new name-brand coin-cell of the same type, then test lock/unlock and remote start (if equipped).

âś“ Pros:
  • Lowest cost and fastest fix
  • No programming usually required for a battery swap
âś— Cons:
  • Risk of cracking the fob case if pried incorrectly
  • Wrong battery type or reversed polarity can prevent operation

Battery replacement at an auto parts store

Cost: $5-$20 Time: Same day

Many retailers will help confirm the correct battery and may install it for you (service varies by store).

âś“ Pros:
  • Quick help confirming the correct battery
  • Less chance of damaging the fob during opening
âś— Cons:
  • Not all stores install batteries
  • Quality varies—ensure a fresh, name-brand battery

Ford dealer service/parts counter replacement

Cost: $10-$40 Time: Same day

Dealer can identify the correct battery for your exact fob style and replace it; they can also inspect the fob if it’s not working after the battery swap.

âś“ Pros:
  • Correct part guidance for your VIN/fob type
  • Best option if you suspect fob damage or water intrusion
âś— Cons:
  • Higher cost than DIY
  • May require a visit/appointment depending on location

⚠️ What to Avoid

✕ Don’t force the door handle or pry aggressively—use the mechanical key and the correct access point to avoid damaging trim or paint.

✕ Don’t install a different battery type/size or flip polarity; always match what’s printed on the old battery and keep the + side oriented correctly.

✕ Don’t assume the vehicle battery is dead—if interior lights and dash power are normal but the fob is unresponsive, the fob battery is the likely culprit.

⚠️ Common Mistakes to Avoid

  • Using wrong battery type
  • Damaging case during opening
  • Not resetting after replacement
  • Buying expensive batteries

Frequently Asked Questions

Can I start my 2024 Ford Explorer if the key fob battery is dead?

Yes. The Explorer has an emergency/backup start procedure for a low or dead fob battery. Use the mechanical key to get in, then follow the vehicle prompt to place the fob in the designated backup location and press the brake and START/STOP.

What battery does a 2024 Ford Explorer key fob use?

Many Ford Intelligent Access fobs use a CR2032 coin-cell, but fob versions can vary. Confirm by checking the battery marking on the old battery or the owner’s manual before buying a replacement.

Will I lose my key programming if I change the fob battery?

Typically no. Replacing the coin-cell battery does not erase programming. If the fob still won’t work after replacement, the issue may be a weak/expired new battery, poor battery contact, fob damage, or a vehicle-side problem.

Why does my fob work only when I hold it close to the steering column or console?

That’s a classic sign of a weak fob battery. The vehicle can sometimes detect the fob at very close range even when the battery can’t reliably transmit at normal distance.

⏱️ Urgency Note: Low urgency if you can use the mechanical key and backup start, but replace the fob battery soon to avoid being locked out or stranded later—especially in extreme heat/cold, which can worsen a weak battery.

Related Information

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