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How To Change Battery In Lexus Key Fob

How To Change Battery In Lexus Key Fob

How to Change the Battery in Your Lexus Key Fob

Step 1: Open Your Key Fob

To change the battery in your Lexus key fob, the first step is to locate the key release button on the fob. Press the button and slide the key out of its holder. Once the key is removed, you can pry open the key fob using a small flathead screwdriver or a key fob opener tool.

Step 2: Remove the Old Battery

Once you have opened the key fob, you will see the battery compartment. Remove the old battery using your fingers or a pair of tweezers. Be careful not to damage the battery compartment or any of the other components within the fob.

Step 3: Insert the New Battery

Next, take your new battery and insert it into the battery compartment. Make sure the positive side of the battery is facing up. Once the battery is in place, snap the key fob back together. You should hear a clicking sound to confirm that the key fob is fully closed.

Step 4: Reinsert the Key

After inserting the new battery, reinsert the key back into the key fob. You should feel it click into place.

Step 5: Test Your Key Fob

Finally, you should test your key fob to make sure the new battery is working properly. Press any button on the fob to see if it triggers the car to unlock or lock. If everything seems to be working correctly, the battery replacement process is complete.


Changing the battery in your Lexus key fob is a simple process that requires only a few basic tools. By following these simple steps, you can save yourself time and money by not having to take your key fob to a mechanic or dealership. Remember to always have a spare battery on hand in case your key fob battery dies unexpectedly.