Is your 2007 Lexus IS250 key fob not working reliably, or has it stopped working altogether? Before you consider expensive replacements or dealership visits, the solution might be as simple as changing the battery. A dead key fob battery is the most frequent culprit behind remote malfunctions, and thankfully, replacing it is a straightforward DIY task. This guide will walk you through identifying the correct battery and replacing it in your 2007 Lexus IS250 key fob, saving you time and money.
Typically, Lexus IS250 key fobs from 2007 utilize either a CR1632 or a CR2032 battery. To confirm the exact battery your fob requires, you can consult your vehicle’s owner manual or use online battery finders that specify based on your car’s year, make, and model. These common coin cell batteries are inexpensive, usually costing under $6, and are readily available online from various retailers.
Once you have the correct replacement battery, follow these steps to open your Lexus IS250 key fob and perform the battery replacement:
For many 2007 Lexus IS250 key fobs, accessing the battery compartment is quite simple. You’ll need to locate the mechanical key hidden within your key fob. Eject this key – usually by pressing a small release button. Once the mechanical key is removed, you’ll often find a slot or notch where the key was located. This slot is designed for inserting the mechanical key itself, or a small flathead screwdriver if needed, to gently pry open the key fob casing.
After carefully separating the two halves of the key fob casing, you’ll gain access to the internal components. Gently lift the circuit board within the fob to reveal the battery. Pay close attention to the orientation of the old battery before you remove it. Note which side is facing up and how it sits in the compartment. This will ensure you install the new battery correctly.
Remove the old battery and install the new CR1632 or CR2032 battery, making sure it is placed in the same orientation as the old one. Carefully reassemble the key fob casing, ensuring it snaps securely back together.
Finally, test your key fob to confirm that the battery replacement has resolved the issue. Press the buttons to lock, unlock, or activate other functions of your Lexus IS250. If the key fob still doesn’t work, double-check that the battery is correctly installed and that the battery contacts are clean and making good contact with the battery. Sometimes, a slight adjustment to the battery’s position can make a difference.
If you prefer visual guidance, numerous step-by-step video tutorials are available online. You can search platforms like YouTube for “Lexus IS250 key fob battery replacement” to find a video demonstrating the process. Keyfobsplus also offers helpful video resources on their YouTube page, which can be a valuable aid.
Understanding the type of key fob you have can also be helpful. Key fobs come in various designs, but for battery replacement, the internal components and battery access methods are often similar across different types like:
- Standard Remotes: Basic remotes with fundamental lock/unlock functionality.
- Flip Keys: Remotes with a key blade that folds out.
- Remote Heads: Remotes with a permanently attached key blade.
- Fobik Keys: Keys hidden inside the remote, separate from the key blade.
- Smart Keys: Often associated with push-to-start systems, offering advanced features.
If replacing the battery doesn’t restore your 2007 Lexus IS250 key fob’s functionality, the issue might be more complex, potentially requiring a full key fob replacement or reprogramming. However, starting with the battery replacement is a cost-effective and simple first step to troubleshoot common key fob problems.
