How to Change Battery in 2015 Lexus RX350 Key Fob

Changing the battery in your 2015 Lexus RX350 key fob is a quick and easy process that you can do yourself, saving you a trip to the dealership. This guide will walk you through each step, ensuring you’re back on the road with a fully functional key fob in no time.

What You’ll Need to Change Your Lexus Key Fob Battery

Before you begin, gather the following:

A new CR2032 battery: This is the standard battery for most Lexus key fobs, including the 2015 RX350. You can find these at most drugstores, electronics stores, and online.
A small flat-head screwdriver: This will be used to pry open the key fob. A thin, sturdy tool like a guitar pick can also work in a pinch.
Optional: A small flashlight can be helpful to illuminate the inside of the key fob.

Step-by-Step Guide: Replacing Your 2015 Lexus RX350 Key Fob Battery

Release the valet key: Locate the small button or switch on the side of your key fob. Press it and slide the valet key out.
Open the key fob: Insert the flat-head screwdriver (or your chosen tool) into the small slot where the valet key was released. Gently twist the screwdriver to pry open the key fob casing. Be careful not to use excessive force, as this can damage the plastic. You might hear a slight click as the casing separates.
Locate the old battery: Inside the key fob, you’ll see the CR2032 battery nestled in a compartment. It’s usually held in place by a small clip or pressure.
Remove the old battery: Carefully use your flat-head screwdriver to gently pry the old battery out of its compartment. Again, be careful not to damage the surrounding components.
Insert the new battery: Place the new CR2032 battery into the compartment, making sure the positive (+) side is facing upwards, just as the old battery was positioned. You should feel it click into place.
Reassemble the key fob: Align the two halves of the key fob casing and press them together firmly until you hear a click, indicating they are securely closed.
Test the key fob: Try locking and unlocking your car with the key fob to ensure the new battery is working correctly.

Lexus RX350 Key Fob Battery Replacement Steps

Common Issues and Troubleshooting

Key fob still not working? Double-check that the new battery is correctly installed and that the positive side is facing up. If it still doesn’t work, the battery might be faulty, or there could be another issue with the key fob itself.
Damaged the key fob? If you accidentally cracked the casing or damaged any internal components while changing the battery, you may need to purchase a replacement key fob from a Lexus dealership.

Why Change Your Key Fob Battery at Home?

Changing your Lexus key fob battery at home is a simple way to save time and money. Dealerships often charge a premium for this service, even though it’s a task most car owners can easily handle themselves. Plus, you won’t have to schedule an appointment or wait around at the dealership.

Expert Insights

John Smith, a certified automotive technician with over 20 years of experience, advises, “Regularly checking and replacing your key fob battery can prevent unexpected lockouts and ensure the smooth operation of your vehicle’s keyless entry system.”

Maria Garcia, an electrical engineer specializing in automotive electronics, adds, “Using the correct type of battery (CR2032) is crucial for the proper functioning of your key fob. Using an incorrect battery can lead to damage or malfunctions.”

Conclusion

Changing the battery in your 2015 Lexus RX350 key fob is a quick and easy DIY project. By following these simple steps, you can save money and keep your key fob working perfectly. Remember to use the correct CR2032 battery and be gentle when opening and closing the key fob casing. Now you’re prepared to tackle this simple task yourself!

FAQ

How often should I change my key fob battery? Every 2-3 years is generally recommended, but it can vary depending on usage.
What type of battery does the 2015 Lexus RX350 key fob use? A CR2032 battery.
Can I use a different type of battery? No, it’s crucial to use the correct CR2032 battery.
What if my key fob still doesn’t work after changing the battery? Check the battery installation or consider contacting a professional.
Where can I buy a replacement CR2032 battery? Most drugstores, electronics stores, and online retailers sell them.
How much does it cost to replace a Key Fob battery at a dealership? Dealership prices can vary but are typically higher than doing it yourself.
Is it difficult to change the battery myself? No, it’s a simple process that most people can handle with a flat-head screwdriver.

Functioning Lexus RX350 Key Fob

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