Dead Key Fob Battery medium urgency

2024 Nissan Murano Dead Key Fob Battery: How to Unlock & Start Your SUV

If your 2024 Nissan Murano key fob suddenly won’t unlock the doors or the push-button start won’t respond, the fob battery may be dead. The good news: you can usually still get in and start the vehicle using built-in backup methods, then replace the battery in minutes.

Understanding Your Situation

The key fob’s coin-cell battery has dropped too low to power the remote buttons and/or reliably communicate with the Murano’s Intelligent Key system. The vehicle may still recognize the fob at very close range, but range and responsiveness often become intermittent before failing completely.

🚀 Immediate Steps to Take

  1. Use the hidden mechanical key to unlock the driver’s door (release the emergency key from the fob, then insert it into the door’s key cylinder).
  2. Start the Murano using the fob’s backup start method: hold the fob directly against the START/STOP button (or as close as possible) and press the brake, then press START. If it doesn’t start, reposition the fob and try again.
  3. Replace the fob battery with the correct coin-cell type (commonly CR2032 for many Nissan fobs; confirm by checking your owner’s manual or the marking on the old battery). Test lock/unlock and remote start (if equipped) afterward.

Your Options

DIY battery replacement (coin-cell)

Cost: $3-$10 Time: Same day

Open the key fob case, remove the old coin-cell battery, and install a new one with the correct orientation. Reassemble the fob and verify all functions.

âś“ Pros:
  • Lowest cost and fastest solution
  • No programming typically required for a simple battery change
âś— Cons:
  • Risk of damaging the fob case or internal clips if pried incorrectly
  • If the issue isn’t the battery, you may still need diagnosis

Battery replacement at a parts store or retailer

Cost: $5-$20 Time: Same day

Purchase the correct battery and have a store associate install it (availability varies by retailer and location).

âś“ Pros:
  • Convenient and usually quick
  • Reduces chance of breaking the fob during opening
âś— Cons:
  • Not all stores install key fob batteries
  • May not confirm other causes (water damage, fob failure)

Dealer service department (battery + system check)

Cost: $20-$60 Time: Same day / 1-3 days (if appointment needed)

A Nissan dealer replaces the battery and can check for Intelligent Key warnings, low vehicle 12V battery issues, or fob-related faults.

âś“ Pros:
  • Professional handling and quick verification of proper operation
  • Can identify if the problem is the vehicle’s 12V battery or a failing fob
âś— Cons:
  • Higher cost than DIY
  • May require an appointment or wait time

Replace the key fob (if battery doesn’t fix it)

Cost: $200-$500 Time: Same day / 1-3 days

If the fob is damaged or failing, replace it and have it programmed to the vehicle (dealer or qualified automotive locksmith).

âś“ Pros:
  • Restores full reliability if the fob electronics are failing
  • Can add an extra spare fob for backup
âś— Cons:
  • Most expensive option
  • Programming requires specialized equipment and proof of ownership

⚠️ What to Avoid

✕ Don’t force the fob open with excessive pressure or metal tools that can crack the case or damage internal components—use a plastic pry tool if possible.

✕ Don’t install the wrong battery type or flip polarity; it can prevent operation and may damage contacts.

✕ Don’t ignore repeated “Key Battery Low” warnings—waiting until it’s fully dead can leave you locked out or unable to start at an inconvenient time.

Frequently Asked Questions

Can I start my 2024 Nissan Murano if the key fob battery is dead?

Yes, in most cases. Use the backup start method by holding the fob directly against the START/STOP button (or as close as possible) and then pressing the brake and START. The vehicle can often read the fob’s transponder at very close range even when the fob battery is dead.

How do I unlock the Murano if the fob won’t work?

Remove the hidden mechanical key from the key fob and use it in the driver’s door key cylinder to unlock manually. After entering, you can use the backup start method to start the vehicle.

What battery does a 2024 Nissan Murano key fob use?

Many Nissan Intelligent Key fobs use a CR2032 coin-cell battery, but you should confirm by checking the owner’s manual for your exact trim/fob or reading the battery code printed on the old battery before buying a replacement.

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

Typically no. Replacing the coin-cell battery does not usually erase key programming. If the fob still doesn’t work after a fresh battery, the fob may be damaged or the vehicle’s 12V battery or Intelligent Key system may need diagnosis.

⏱️ Urgency Note: Moderate urgency: you can often unlock and start using backup methods, but replace the battery soon to avoid being locked out, stranded, or unable to use remote features in bad weather or unsafe locations.

Related Information

Need Detailed Information?

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

View Murano Key Fob Guide →

Last updated: 2026-01-04