How to Replace Infiniti Key Fob Battery: Ultimate Maintenance Guide

Signs of a Low Key Fob Battery

  • Your key fob struggles to unlock or lock your car.
  • You notice a significant delay in response time when using the key fob buttons.
  • Warning messages appear on your car’s dashboard related to the key fob.
  • The range for using the key fob decreases noticeably.
Key Fact Data
Typical Key Fob Battery Life 2-3 years
Replacement Cost for Key Fob Battery $5-$15
DIY Difficulty Level Easy
  • Your key fob works intermittently, even at close range.
  • The LED light on the key fob appears dim or does not light up at all.
  • Multiple attempts are needed to start your car using the key fob.

Tools Needed for Replacing Key Fob Battery

When it comes to replacing your Infiniti key fob battery, you’ll need a few essential tools to get the job done. Here’s what you’ll require:

  • Replacement Battery: Ensure you have the correct battery type for your Infiniti key fob. Check the owner’s manual for the specific battery model needed.
  • Small Flathead Screwdriver or Key Fob Opener Tool: This tool will help you open the key fob without causing damage.
  • Fine-tip Tweezers: Useful for handling the small battery inside the key fob with precision.
  • Cloth or Towel: Place this underneath your work area to prevent losing any small parts or the battery.

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Before starting the battery replacement process, gather these tools to make the task easier and more efficient.

Step-by-Step Guide to Replace Key Fob Battery

Replacing your Infiniti key fob battery is a simple process that you can do in just a few minutes. Here’s a straightforward guide to help you through it:

  • Step 1: Obtain the right tools
    Before you start, make sure you have a replacement battery, a small flathead screwdriver or key fob opener tool, fine-tip tweezers, and a cloth or towel for a smooth and efficient battery replacement process.
  • Step 2: Open the key fob
    Use the flathead screwdriver or key fob opener tool to carefully pry open the key fob. Be gentle to avoid damaging the casing.
  • Step 3: Remove the old battery
    Once the key fob is open, locate the old battery. Use the fine-tip tweezers to remove the old battery from its place.
  • Step 4: Insert the new battery
    Take the replacement battery and place it in the correct position within the key fob. Make sure it is securely in place.
  • Step 5: Close the key fob
    Carefully put the key fob back together, ensuring that all parts fit snugly. Press the casing together firmly to secure it.
  • Step 6: Test the key fob
    After replacing the battery and reassembling the key fob, test it to ensure that it is working correctly. Check if you can lock and unlock your Infiniti smoothly.
  • Step 7: Enjoy a fully functional key fob
    With the new battery in place, you can now enjoy a fully functioning Infiniti key fob without any issues. Remember to keep track of when you replaced the battery for future reference.

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Tips for Maintaining Key Fob Battery Life

  • Keep Spare Batteries Handy
  • It’s smart to have extra batteries ready for quick replacement.
  • Store in Optimal Conditions
  • Avoid extreme temperatures as they can affect battery life.
  • Regularly Check Battery Life
  • Test your key fob occasionally to ensure the battery level.
  • Clean Contacts
  • Keep the key fob’s battery contacts free from dirt and corrosion.
  • Use the Key Fob Wisely
  • Avoid excess usage of key fob functions to preserve battery.
  • Consider a Protective Case
  • Shield your key fob from physical damage that might affect the battery.


You’ve now learned how to replace the key fob battery in your Infiniti with ease. By following the simple steps outlined in this guide, you can ensure that your key fob continues to function smoothly. Remember to implement the maintenance tips provided to extend the life of your key fob battery. By keeping spare batteries on hand, storing them properly, and taking care of your key fob, you’ll avoid any unexpected inconveniences. With these practices in place, you can enjoy the convenience and security that your Infiniti key fob provides for a long time to come.

Frequently Asked Questions

How often should I replace my Infiniti key fob battery?

Replacing your Infiniti key fob battery is recommended every 1-2 years to ensure optimal performance.

What are some tips for maintaining key fob battery life?

To extend key fob battery life, keep spare batteries available, store them in proper conditions, regularly check battery life, clean contacts, use the key fob judiciously, and consider a protective case.

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Can storing the key fob in extreme temperatures affect battery life?

Yes, storing the key fob in extreme temperatures can shorten battery life due to accelerated discharge. Optimal storage conditions help maintain battery health.

Battery industry professional with 5+ years of experience. Bachelor of Science in Electrical Engineering from Georgia Tech. Specializes in power systems and renewable energy.

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