Hey guys! Is your 2013 Lexus RX 350 key fob acting up? Don't worry, it's probably just the battery. A dead or weak key fob battery can be a real pain, preventing you from remotely unlocking your car, starting the engine, or even setting off the alarm unintentionally. Luckily, replacing the battery in your Lexus RX 350 key fob is a simple task you can easily do yourself, saving you time and money compared to a trip to the dealership. This guide will walk you through each step, ensuring you get your key fob back in working order in no time. We'll cover everything from identifying the correct battery type to the actual replacement process, and even some troubleshooting tips if you run into any snags. You won't need any special tools, just a few common household items and a little bit of patience. So, let's dive in and get that key fob working like new again!

What You'll Need

Before we get started, let's gather all the necessary tools and materials. This will make the process smoother and prevent any frustrating interruptions. Here's what you'll need:

• A new CR2032 battery: This is the standard battery type used in most Lexus key fobs, including the 2013 RX 350. You can easily find these at most drugstores, supermarkets, or online retailers. Make sure to check the expiration date to ensure you're getting a fresh battery.
• A small flathead screwdriver or a prying tool: This will be used to carefully open the key fob casing. Be gentle to avoid scratching or damaging the plastic.
• A soft cloth or towel: This is optional, but it can be helpful to protect the key fob from scratches while you're working on it.

Having these items ready will ensure a quick and hassle-free battery replacement.

Step-by-Step Battery Replacement

Alright, let's get down to the nitty-gritty! Follow these steps carefully to replace the battery in your 2013 Lexus RX 350 key fob:

Step 1: Locate the Notch

• Examine your key fob closely. You'll find a small notch or opening on the side or bottom of the fob. This is where you'll insert the screwdriver or prying tool to open the case.

Step 2: Open the Key Fob

• Insert the tip of your flathead screwdriver or prying tool into the notch.
• Gently twist or pry the tool to separate the two halves of the key fob casing. Be careful not to apply too much force, as this could damage the plastic.
• If the casing is stubborn, try working your way around the perimeter of the fob, gently prying at different points until it starts to separate.

Step 3: Remove the Old Battery

• Once the key fob is open, you'll see the battery inside. It's usually held in place by a small clip or bracket.
• Carefully use your fingernail or the tip of the screwdriver to gently dislodge the battery from the clip.
• Take note of the battery's orientation (+ and - sides) before removing it. This will ensure you install the new battery correctly.

Step 4: Install the New Battery

• Insert the new CR2032 battery into the key fob, making sure the + side is facing the correct direction (matching the orientation of the old battery).
• Press down gently on the battery to ensure it's securely seated in the clip or bracket.

Step 5: Reassemble the Key Fob

• Carefully align the two halves of the key fob casing.
• Press them together firmly until they snap back into place. You should hear a click, indicating that the casing is securely closed.
• Make sure there are no gaps or loose parts.

Step 6: Test the Key Fob

• Press the buttons on the key fob to test its functionality. Try unlocking and locking your car remotely.
• If the key fob doesn't work, double-check that the battery is installed correctly and that the casing is fully closed.

Troubleshooting Tips

Even with careful instructions, sometimes things don't go exactly as planned. Here are some troubleshooting tips to help you resolve common issues:

• Key Fob Still Not Working: Double-check the battery orientation. Ensure the + side is facing the correct way. Also, make sure the battery is fresh and not expired. Sometimes, a new battery can be defective, although it's rare.
• Key Fob Casing Won't Close: Make sure the two halves of the casing are properly aligned. Check for any obstructions, such as dirt or debris, that might be preventing them from closing completely. Do not force it, as this could damage the plastic.
• Difficulty Opening the Key Fob: If the casing is difficult to open, try using a different prying tool or applying gentle heat with a hairdryer to soften the plastic. Be careful not to overheat the plastic, as this could damage it.
• Key Fob Works Intermittently: This could be a sign of a weak battery or a problem with the key fob's internal circuitry. Try cleaning the battery contacts with a cotton swab and some rubbing alcohol. If the problem persists, you may need to take the key fob to a professional for repair.

Important Considerations

• Battery Disposal: Dispose of the old battery properly. Many stores that sell batteries also offer battery recycling programs. Check with your local waste management company for information on proper battery disposal in your area.
• Key Fob Protection: To prolong the life of your key fob, avoid exposing it to extreme temperatures, moisture, or direct sunlight. Consider purchasing a protective case to prevent scratches and damage.
• Low Battery Warning: Your Lexus RX 350 may display a low battery warning on the dashboard when the key fob battery is getting weak. This is a good indication that it's time to replace the battery.

Conclusion

Replacing the battery in your 2013 Lexus RX 350 key fob is a simple and straightforward process that can save you time and money. By following these steps and troubleshooting tips, you can easily get your key fob back in working order. Remember to use the correct battery type, be gentle when opening the key fob casing, and dispose of the old battery properly. With a little bit of patience and the right tools, you'll be back to enjoying the convenience of your keyless entry system in no time! If you're still having trouble, don't hesitate to consult your owner's manual or seek professional assistance. Good luck, and happy driving! If you guys have any questions or tips of your own, feel free to share them in the comments below. We're always happy to hear from our readers and learn from your experiences. This do-it-yourself task empowers you to maintain your vehicle and avoid unnecessary dealership expenses. Furthermore, understanding the inner workings of your key fob can be incredibly helpful in the long run. So, take pride in your newfound knowledge and enjoy the convenience of a fully functional key fob! Remember, a little maintenance goes a long way in keeping your Lexus RX 350 running smoothly. Now go forth and conquer that key fob battery replacement! You've got this!