Experiencing issues with your 2014 Lexus IS250 key fob? A non-responsive remote is a common frustration, and often, the solution is simpler than you might think. The most frequent culprit behind a malfunctioning key fob is a dead battery. The good news is that changing the battery in your Lexus IS250 key fob is a straightforward process you can easily handle yourself, saving you a trip to the dealership and the associated costs. This guide will provide you with clear, step-by-step instructions to get your key fob working again.
Identifying the Right Replacement Battery for Your Lexus IS250 Key Fob
Lexus IS250 key fobs are typically powered by readily available coin cell batteries, specifically the CR1632 or CR2032. These batteries are known for their longevity and affordability, generally costing less than $6. You can purchase them online from various retailers or find them at most stores selling batteries, electronics, or even drugstores. To determine the exact battery your key fob requires, it’s best to consult your Lexus IS250 owner’s manual. Alternatively, once you open your key fob, you can identify the battery type by looking at the markings on the existing battery itself. Having the correct battery type ensures optimal performance and longevity for your key fob.
Step-by-Step Guide to Replacing Your 2014 Lexus IS250 Key Fob Battery
The method for opening your Lexus IS250 key fob to access the battery compartment varies slightly depending on whether you have a newer or older model key fob. Follow the instructions below that correspond to your key fob style:
For Newer Lexus IS250 Key Fob Models:
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Remove the Hidden Key: Locate the mechanical key that is concealed within your Lexus IS250 key fob. There is usually a small release button or latch that allows you to slide out and remove this key.
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Insert Key into Designated Slot: Once the mechanical key is removed, you will find a small slot or opening revealed on the key fob casing where the key was housed. Insert the end of the mechanical key into this designated slot.
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Open the Casing: With the key inserted into the slot, gently twist the key or apply slight pressure to pry open the key fob casing. The case is designed to separate at this point, allowing you access to the internal components.
For Older Lexus IS250 Key Fob Models:
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Locate the Notch: Examine the edges of your Lexus IS250 key fob casing to find a small notch or indentation. This notch is the designated point for opening the case.
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Use a Thin Object to Pry: Take a thin, flat object, such as a small flathead screwdriver or a plastic trim removal tool. Carefully insert the edge of your tool into the notch on the key fob casing.
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Pry Open the Case: Gently twist or lever your tool within the notch to pry open the key fob casing. Be careful not to apply excessive force, as you only need to separate the two halves of the case.
Once the Key Fob Case is Open (For Both Newer and Older Models):
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Access the Circuit Board and Battery: After opening the case, you will see the internal circuit board of the key fob. Gently lift or maneuver the circuit board to reveal the battery compartment located underneath.
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Note Battery Orientation: Before removing the old battery, take a moment to observe how it is positioned within the compartment. Note the orientation of the positive (+) and negative (-) terminals. This will ensure you install the new battery correctly.
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Remove and Replace Battery: Carefully remove the old, dead battery from its compartment. Install the new CR1632 or CR2032 battery, matching the orientation you noted earlier. Ensure the battery is securely seated in the compartment and making good contact.
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Reassemble the Key Fob: Carefully align the two halves of the key fob casing and press them firmly together until they snap closed securely. Ensure there are no gaps and the case is properly sealed.
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Test Key Fob Functionality: Test the functionality of your Lexus IS250 key fob by pressing the buttons to lock, unlock, or activate other remote functions of your vehicle. If the key fob does not work immediately, double-check that the battery is correctly installed and that the battery contacts are clean and making proper contact.
For a more detailed visual walkthrough of this process, you can search for videos demonstrating “Lexus IS250 key fob battery replacement” on platforms like YouTube, including the KeyFobsPlus YouTube channel. These video guides can provide additional clarity and confidence as you replace your battery.
Understanding Different Types of Key Fobs
While your focus is on battery replacement, it’s interesting to note that there are various types of key fobs available today, each with slightly different designs and features. These include standard remotes, flip keys (where the key blade flips out), remote heads (with a fixed key blade), fobik keys (where the key is separate from the remote), and smart keys (often associated with push-to-start ignition systems). Although the external designs differ, the fundamental principle of battery power remains consistent across most key fob types.
What if Replacing the Battery Doesn’t Solve the Problem?
In the vast majority of cases, replacing the key fob battery will restore your Lexus IS250 remote to full working order. However, if you continue to experience issues after installing a fresh battery, it may indicate a more complex problem with your key fob itself. In such instances, you might need to consider a complete Lexus IS250 key fob replacement or seek professional assistance to diagnose and resolve the underlying issue.
