How to Test Chrysler Key Fob After Battery Replacement: A Guide

Step 1: Gather Necessary Tools

To successfully change the battery in your Chrysler key fob, you will need a few essential tools and materials. Here’s what you should gather before getting started:

  • A replacement battery: Check your Chrysler key fob’s manual for the specific battery type needed.
  • Small flat-head screwdriver: This will be useful for opening the key fob.
  • Needle-nose pliers: Helpful for handling small components inside the key fob.
  • Cloth or towel: Use this to prevent any accidental scratches on the key fob or the surface you are working on.
  • Work area with good lighting: Ensuring you can see clearly will make the process easier.
  • Patience and a steady hand: Changing a key fob battery requires precision and focus.

By gathering these tools and materials, you will be well-prepared to tackle the task of replacing the battery in your Chrysler key fob.

Step 2: Open the Key Fob

To begin the process of changing the battery in your Chrysler key fob, you’ll need to open it. Here’s how you can do it:

  • Locate the Seam: Hold the key fob so that the buttons are facing down. Look for the seam that runs along the outside edge of the fob.
  • Use the Flat-head Screwdriver: Insert the flat-head screwdriver into the seam. Gently twist the screwdriver to separate the two halves of the key fob.
  • Be Patient: It may take a bit of careful maneuvering to pry open the fob without causing any damage. Take your time to ensure you don’t break any of the plastic clips holding the fob together.
  • Separate the Halves: Once you’ve successfully opened the fob, you’ll see the circuit board and the old battery. Carefully remove the circuit board from one half of the fob.
  • Handle with Care: Be gentle when handling the circuit board to avoid any damage. Do not force it out of place.
  • Inspect the Inside: Take a moment to check for any dirt, debris, or corrosion inside the key fob that may need cleaning.

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By following these steps, you’ll have the key fob opened and be ready to proceed with replacing the battery.

Step 3: Replace the Battery

When it comes to replacing the battery in your Chrysler key fob, here’s what you need to do next:

  • Identify the Battery: Look for the old battery in its designated slot within the key fob.
  • Remove the Old Battery: Carefully take out the old battery, ensuring not to damage the circuit board.
  • Insert the New Battery: Place the new battery in the same slot, making sure it’s correctly oriented.

Make sure to handle the batteries with care and avoid damaging any components within the key fob.

Important Information
Always use the correct battery type specified for your Chrysler key fob.
Test the key fob functionality after replacing the battery to ensure it works properly.

Step 4: Close the Key Fob

To complete the battery replacement process, it’s essential to close the key fob properly. Follow these steps:

  • Align the two halves of the key fob and gently press them together.
  • Make sure you hear a click sound, indicating that the fob is securely closed.
  • Test the key fob by pressing the buttons to ensure it’s functioning correctly.

Remember, proper closure is crucial for protecting the internal components and ensuring the longevity of your Chrysler key fob.

Battery Replacement Summary

Important Points to Remember
Double-check the alignment of the battery, ensuring it’s inserted correctly.
Test the key fob post-replacement to verify proper functionality.
Close the key fob securely to safeguard the internal components.

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Step 5: Test the Key Fob

After replacing the battery and securely closing your Chrysler key fob, the next essential step is to test its functionality. Here’s what you need to do:

  • Press the Buttons: Test all the buttons on the key fob to ensure they are responsive.
  • Proximity Test: Check if the key fob works when you are near your vehicle.
  • Remote Start: If your key fob has a remote start function, test it to confirm it is working correctly.

Remember to test the key fob from various distances to ensure optimal operation. It’s crucial to verify that the key fob is working correctly before relying on it for day-to-day use.

Action Details
Buttons responsiveness Test all buttons properly
Proximity functionality Check key fob from different distances
Remote start function Ensure proper operation


Now that you’ve followed the steps to change the battery in your Chrysler key fob, it’s important to test its functionality thoroughly. Make sure all buttons respond well, check the proximity feature from different distances, and verify the remote start function if your key fob has it. Ensuring that your key fob works correctly is crucial before relying on it for your day-to-day activities. With these simple steps, you can easily replace the battery in your Chrysler key fob and enjoy uninterrupted use of your vehicle’s remote access features.

Frequently Asked Questions

How do I test the key fob after replacing the battery?

After replacing the battery, test all buttons for responsiveness and check the key fob’s proximity functionality from various distances. Make sure the remote start function, if applicable, operates correctly. It’s crucial to verify the key fob’s proper functionality before using it daily.

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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