A dead key fob battery can leave you stranded, unable to lock or unlock your Lexus. Luckily, replacing the battery in your Lexus key fob is a quick and easy process you can do yourself. This guide provides step-by-step instructions and helpful tips to get your key fob back in working order.
What You’ll Need to Replace Lexus Key Fob Battery
Before you begin, gather the following items:
- A new CR2032 battery: This is the most common type of battery used in Lexus key fobs. You can purchase them at most drugstores, supermarkets, and auto parts stores.
- A small flathead screwdriver: This is needed to pry open the key fob.
- A clean microfiber cloth: This is used to clean the battery contacts.
How To Change a Lexus Key Fob Battery: Step-by-Step Guide
Follow these simple steps to replace your Lexus key fob battery:
- Locate the release button on the back of the key fob. This button is usually small and located near the key ring.
- Press the release button and gently pull out the valet key. The valet key is a small metal key that can be used to manually unlock the car door in an emergency.
- Use the flathead screwdriver to carefully pry open the key fob casing. Insert the screwdriver into the seam between the two halves of the key fob and gently twist to separate them. Be careful not to damage the casing or internal components.
- Identify the old battery. The battery will be a small, round, silver disc labeled “CR2032.”
- Use the flathead screwdriver or your fingernail to gently pry out the old battery. Pay attention to the orientation of the battery, as the new one will need to be inserted in the same way.
- Clean the battery contacts with the microfiber cloth. This will help to ensure a good connection.
- Insert the new battery into the battery compartment, making sure it is facing the correct way. The positive (+) side of the battery should be facing up.
- Align the two halves of the key fob and press them together until you hear a click. This indicates that the key fob is properly sealed.
- Test the key fob by pressing the lock and unlock buttons. The car should respond accordingly.
Lexus Key Fob Battery Replacement FAQs
Here are some commonly asked questions about replacing a Lexus key fob battery:
What kind of battery does a Lexus key fob take?
Most Lexus key fobs use a CR2032 battery, a common lithium coin battery. You can find them at most stores that sell batteries.
How long does a Lexus key fob battery last?
A Lexus key fob battery can last anywhere from 3 to 5 years, depending on usage and environmental factors.
Can I replace the Lexus key fob battery myself?
Absolutely! Replacing the battery is a simple DIY task that most people can do in a few minutes with just a couple of tools.
How do I know if my Lexus key fob battery is low?
If your key fob’s range is decreasing, the lock/unlock buttons are slow to respond, or the car doesn’t recognize the key fob consistently, it’s likely time for a new battery.
What if I replace the battery and my Lexus key fob still doesn’t work?
If you’ve replaced the battery and your Lexus key fob still isn’t functioning correctly, there may be other issues. In these cases, it’s best to consult a qualified automotive locksmith or your Lexus dealership for further diagnosis and assistance. They can help you determine if the key fob needs to be reprogrammed, repaired, or replaced.
Maintaining Your Lexus Key Fob
By taking a few simple steps to maintain your key fob, you can help extend the life of its battery and ensure its longevity. Avoid exposing the key fob to extreme temperatures or moisture, as this can damage the battery and internal components. Additionally, avoid dropping or physically impacting the key fob, as this can also lead to damage.
Conclusion
Replacing the battery in your Lexus key fob is a straightforward process that anyone can do. By following these simple steps and keeping a spare battery on hand, you can avoid finding yourself stranded with a dead key fob. Remember that regular maintenance and care of your Lexus key fob can also contribute to its optimal performance and lifespan.
