Is your Lexus NX key fob acting up? Perhaps it’s not unlocking your doors as reliably as it used to, or maybe your vehicle is having trouble detecting the key. The most common culprit for these issues is a low or dead battery in your key fob. Fortunately, replacing the battery in your Lexus NX key fob is a straightforward task you can easily accomplish at home in just a few minutes. This guide, brought to you by the auto experts at keyfobx.com, will walk you through each step of the process, ensuring you can get your key fob back in perfect working order without a trip to the dealership.
Tools You’ll Need
Before you begin, gather these simple tools:
- A New CR1632 Battery: This is the specific type of battery required for Lexus NX key fobs. You can find these at most drugstores, supermarkets, or online retailers.
- A Small Flathead Screwdriver or a Thin Pry Tool: This will be used to gently open the key fob casing.
Step 1: Prepare to Open the Lexus NX Key Fob
To access the battery compartment, you’ll first need to carefully open your Lexus NX key fob. Locate the small seam running around the edge of your key fob. This seam is where the two halves of the casing join together.
Step 2: Carefully Pry Open the Key Fob Casing
Using your small flathead screwdriver or pry tool, gently insert the tip into the seam of the key fob. Apply a small amount of pressure and twist the screwdriver to begin separating the two halves of the casing. Work your way around the seam, gently prying as you go. Avoid using excessive force, as you could damage the plastic casing of your key fob. Take your time to open it slowly and carefully.
Step 3: Remove the Old CR1632 Battery
Once the key fob is open, you will see the battery compartment and the old CR1632 battery. Observe the orientation of the old battery – specifically, note which side is facing upwards (positive or negative). This is important for inserting the new battery correctly. You can typically use your fingertip or the edge of the flathead screwdriver to gently nudge the old battery out of its compartment.
Step 4: Install the New CR1632 Battery
Now, take your new CR1632 battery and carefully insert it into the battery compartment. Ensure that you are inserting it with the correct orientation, matching the way the old battery was positioned. Usually, the positive (+) side of the battery should be facing upwards. Press down gently to ensure the new battery is securely seated in the compartment.
Step 5: Test the Key Fob Functionality
Before fully reassembling the key fob, it’s wise to test if the new battery has resolved the issue. Press any button on your Lexus NX key fob – such as the lock, unlock, or panic button – and see if your Lexus NX responds. Check if the indicator light on the key fob illuminates. If everything seems to be working, proceed to the next step.
Step 6: Reassemble the Lexus NX Key Fob
If the test is successful, align the two halves of the key fob casing back together. Press them firmly until they snap securely back into place. Ensure there are no gaps and that the casing is fully closed.
Step 7: Final Test of Your Lexus NX Key Fob
Perform a final test to confirm that your Lexus NX key fob is now functioning correctly. Try unlocking and locking your doors remotely, starting your vehicle, and using any other functions your key fob offers. With a fresh CR1632 battery, your Lexus NX key fob should be back to its reliable self.
Troubleshooting Tips
- Key Fob Still Not Working? If your key fob still doesn’t work after replacing the battery, there could be other issues. In some cases, the key fob may need to be reprogrammed. Contact your local Lexus dealer or a qualified automotive locksmith for assistance with reprogramming.
- Battery Size Mismatch? Double-check that you have the correct CR1632 battery. Using the wrong battery type can prevent your key fob from working and could potentially damage it.
- Key Fob Damage? If you suspect physical damage to the key fob itself, such as from dropping it, internal components might be broken. Professional repair or replacement might be necessary in such cases.
prolonging Your Key Fob Battery Life
To maximize the lifespan of your Lexus Nx Key Fob Battery, consider these tips:
- Avoid Extreme Temperatures: Don’t leave your key fob in direct sunlight or in extremely cold environments for extended periods, as temperature extremes can shorten battery life.
- Spare Battery Ready: Keep a spare CR1632 battery at home or in your glove compartment so you’re prepared for unexpected battery depletion.
Replacing your Lexus NX key fob battery is a simple and cost-effective way to maintain your vehicle’s convenience and security. By following these steps, you can confidently handle this routine maintenance task yourself and ensure your key fob is always ready when you need it.
