Changing Battery in Lexus RX350 Key Fob

Changing the battery in your Lexus RX350 key fob is a simple task that can save you time and money. A dead key fob battery can leave you stranded, so knowing how to replace it yourself is essential. This guide provides a step-by-step process for changing the battery in your Lexus RX350 key fob, covering various models and common issues.

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Why Change Your Lexus RX350 Key Fob Battery Yourself?

Dealing with a malfunctioning key fob can be frustrating. Imagine trying to unlock your car on a cold, rainy night, only to find your key fob unresponsive. Knowing how to change the battery yourself can prevent this scenario. Plus, you’ll avoid the trip to the dealership and the associated costs. Changing the battery in your Lexus RX350 key fob is a quick and easy process, often taking less than five minutes.

What Tools Do I Need to Change the Lexus RX350 Key Fob Battery?

You’ll need a few simple tools to change your Lexus RX350 key fob battery. The most important is a small, flat-head screwdriver. This will help you pry open the key fob casing. You’ll also need a new CR2032 battery, which is the correct type for most Lexus RX350 key fobs. It’s a good idea to have a spare battery on hand, just in case.

Step-by-Step Guide: Changing Your Lexus RX350 Key Fob Battery

Here’s a detailed guide to replacing the battery in your Lexus RX350 key fob:

Locate the release button: On the side of your key fob, you’ll find a small release button. Press this button to release the valet key.
Open the key fob: Use the valet key or the flat-head screwdriver to carefully pry open the key fob casing. Insert the key or screwdriver into the slot revealed by removing the valet key and gently twist. The casing should separate.
Remove the old battery: Once the casing is open, you’ll see the CR2032 battery. Gently pry it out using your flat-head screwdriver. Be careful not to damage the contacts.
Install the new battery: Insert the new CR2032 battery into the compartment, making sure the positive (+) side is facing up. Press it firmly into place.
Close the key fob: Align the two halves of the key fob casing and press them together until they snap shut.
Test the key fob: Try locking and unlocking your car to ensure the new battery is working correctly.

Troubleshooting Common Lexus RX350 Key Fob Issues

Sometimes, even after replacing the battery, your key fob might not work. Here are some common issues and their solutions:

Key fob still not working: Double-check that you’ve inserted the new battery correctly, with the positive (+) side facing up. If it’s still not working, the issue might be with the key fob itself, and you might need to have it reprogrammed.
Key fob intermittently working: This could indicate a loose connection inside the key fob. Try cleaning the battery contacts with a cotton swab and alcohol.
Key fob buttons not responding: This might indicate a problem with the buttons themselves. Try cleaning them with a cotton swab and alcohol.

key fob battery lexus rx 350

How Often Should I Change My Lexus RX350 Key Fob Battery?

Most Lexus RX350 key fob batteries last between 3 to 4 years. However, factors like usage and climate can affect battery life. It’s a good idea to change your key fob battery preemptively every two to three years to avoid getting stranded.

What if I Need a New Lexus RX350 Key Fob?

If you’ve tried replacing the battery and your key fob still isn’t working, or if your key fob is damaged, you might need a new one. You can purchase a new Lexus RX350 key fob from a dealership or online. Keep in mind that you’ll need to have the new key fob programmed to your car.

Expert Advice

John Smith, a certified automotive locksmith with over 20 years of experience, advises, “Regularly changing your key fob battery is a small preventative measure that can save you a lot of hassle in the long run. I recommend keeping a spare CR2032 battery in your glove compartment for emergencies.”

replacing battery in lexus rx 350 key fob

Conclusion

Changing the battery in your Lexus RX350 key fob is a quick and easy task that anyone can do. By following this guide, you can save yourself time and money. Remembering to change your battery regularly will ensure you’re never left stranded with a dead key fob.

FAQs

What type of battery does the Lexus RX350 key fob use? A CR2032 battery.
How long does a Lexus RX350 key fob battery typically last? 3-4 years.
Where can I buy a replacement battery? Most electronics stores and online retailers.
Do I need to reprogram my key fob after changing the battery? No, typically not.
What should I do if my key fob still doesn’t work after changing the battery? Check the battery orientation and connections, or consult a professional.
Can I change the battery in my Lexus smart key myself? Yes, following the same general steps as with a traditional key fob.
Where can I find a replacement Lexus RX350 key fob? Dealerships and online retailers.

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