Is your 2001 Lexus IS300 key fob starting to feel a little unresponsive? Are you finding yourself pressing the buttons multiple times just to lock or unlock your doors? It might be time for a battery replacement. Don’t worry, replacing the battery in your Lexus IS300 key fob is a simple DIY task that can save you time and money compared to visiting a dealership. Understanding the correct 2001 Lexus Is300 Key Fob Battery Size is the first step to getting your remote back in top shape. This guide will walk you through everything you need to know, from identifying the right battery to programming your key fob after the change.
Identifying the Correct Battery Size for Your 2001 Lexus IS300 Key Fob
The key to a successful key fob battery replacement is using the correct battery size. For the 2001 Lexus IS300 key fob, you’ll need a CR2016 battery. This is a common 3V lithium coin cell battery that provides the power needed for your key fob to communicate with your vehicle.
A CR2016 lithium coin battery, the correct size for the 2001 Lexus IS300 key fob.
It’s crucial to use the CR2016 battery size and not a similar-looking battery with a different designation. While other coin cell batteries might fit physically, they may have different voltage or amperage ratings, which could lead to improper function or even damage your key fob. Always double-check that you are using a CR2016 battery for your 2001 lexus is300 key fob. You can typically find these batteries at most drugstores, supermarkets, and online retailers.
Step-by-Step Guide to Replacing Your 2001 Lexus IS300 Key Fob Battery
Replacing the battery in your 2001 Lexus IS300 key fob is a straightforward process that you can complete in just a few minutes with minimal tools. Here’s how:
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Locate the notch: On the side of your key fob, you’ll find a small notch or indentation. This is where you’ll need to insert a tool to open the case.
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Open the key fob: Use a small flathead screwdriver or a coin to gently pry open the key fob case at the notch. Be careful not to apply too much force, as you could damage the plastic casing. The case should split into two halves.
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Identify the old battery: Once the case is open, you will see the old CR2016 battery nestled inside. Take note of the battery’s orientation (positive side up or down) before removing it.
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Remove the old battery: Carefully remove the old battery. You can use your fingertip or the tip of a small screwdriver to gently lift it out.
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Insert the new battery: Install the new CR2016 battery, ensuring it is placed in the correct orientation as the old battery. The positive (+) side of the battery should typically face upwards, but double-check the markings inside your key fob case.
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Close the key fob: Carefully snap the two halves of the key fob case back together until they are securely closed. You should hear a click indicating that it’s properly sealed.
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Test your key fob: Press the buttons on your key fob to test if it’s working correctly. The doors should lock and unlock, and the trunk release should function.
Programming Your 2001 Lexus IS300 Key Fob Remote
After replacing the battery, your key fob should work for basic functions like locking and unlocking your doors. However, in some cases, you might need to reprogram the remote portion of your 2001 Lexus IS300 key fob to ensure it communicates correctly with your vehicle. Here are the programming instructions:
A typical Lexus IS300 key fob, similar to the one requiring a battery replacement.
Note: These instructions are for the remote portion of the key fob only (lock, unlock, trunk). Key cutting and transponder programming (to start the car) must be done by a professional locksmith or dealership.
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Prepare your vehicle:
- Ensure all doors and the trunk are closed.
- Open and unlock only the driver’s side door.
- Have all key fobs you wish to program for this vehicle ready.
- Key should be out of the ignition.
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Initiate programming sequence:
- Insert the key into the ignition (do not turn it) and immediately remove it.
- Within 40 seconds, use the power door lock switch on the driver’s door to perform 5 lock/unlock cycles, starting with “lock”. Do this at a consistent pace, about one cycle per second (1 cycle = 1 lock AND 1 unlock).
- Close, then open the driver’s door.
- Within 40 seconds, again use the power door lock switch to perform 5 lock/unlock cycles, starting with “lock” at the same pace.
- Insert the key into the ignition.
- Turn the ignition to the “ON” position (just before starting the engine, do NOT start the car) and then back to “OFF”.
- Repeat the “ON” to “OFF” ignition cycle one more time.
- Remove the key from the ignition.
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Programming mode confirmation: Within 3 seconds, the power door locks should cycle automatically, indicating successful entry into programming mode. If the locks do not cycle, return to step 1 and repeat. If they do cycle, proceed to step 4.
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Program each remote: Within 40 seconds:
- Press and hold both the “lock” and “unlock” buttons on the remote simultaneously for 1 second.
- Immediately release both buttons, and then press and hold the “lock” button alone for 2 seconds.
- Within 3 seconds, the door locks should cycle once to indicate successful programming of that remote. If the locks cycle twice or not at all, repeat steps 4A and 4B for that remote.
- Repeat step 4 for each additional remote you need to program.
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Exit programming mode: Close the driver’s door.
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Test all remotes: Test all programmed key fobs to ensure they are working correctly.
Troubleshooting and Tips
- Key fob still not working? Double-check that you installed the CR2016 battery correctly and that it is a fresh battery. Sometimes, even new batteries can be faulty.
- Programming difficulties? Ensure you are following the programming steps precisely and within the time limits. Having a helper can sometimes make the process easier, especially with the timing of door lock cycles.
- Key blade length: The original article mentioned a 1.5-inch key blade length. While this is less relevant for battery replacement, if you are considering replacing the entire key fob shell, ensure the blade length is compatible with your original key.
By following these steps, you should be able to easily replace the battery in your 2001 Lexus IS300 key fob and restore its functionality. This simple maintenance task can keep your key fob working reliably for years to come.
