Changing your Lexus key fob battery is a simple task that can save you time and money. This guide will walk you through the process step-by-step, ensuring you can get back on the road quickly. Knowing how to change your Lexus key fob battery yourself can prevent the inconvenience of a dead key fob and the potential cost of a locksmith or dealership visit. Let’s get started!
Lexus Key Fob Battery Replacement Guide
Understanding Your Lexus Key Fob
Before diving into the battery replacement process, it’s essential to identify the type of key fob you have. Lexus offers various key fob designs, each with a slightly different battery replacement procedure. While the basic principles remain the same, understanding your specific key fob will simplify the process. Some key fobs have a hidden key blade, useful if your key fob battery completely dies and you need to unlock your car manually. Do you know where your spare key is? It’s always a good idea to have a backup. If your car battery is totally dead, you might want to check out our guide on car totally dead.
Identifying Your Key Fob Type
- Standard Key Fob: This is the most common type, featuring lock, unlock, panic, and trunk release buttons.
- Smart Key/Keyless Entry: These fobs allow you to unlock and start your car without physically inserting the key.
- Push-Button Start Key Fob: These key fobs are similar to smart keys but specifically designed for vehicles with push-button start systems.
What You’ll Need
- New Battery: CR2032 or CR2450 are the most common battery types for Lexus key fobs. Check your owner’s manual for the correct battery type for your specific model.
- Small Flathead Screwdriver or Similar Tool: This is used to pry open the key fob casing.
- Optional: Small Pliers: These can be helpful for gripping and removing the old battery.
Step-by-Step Guide to Changing the Battery
Here’s a detailed guide to help you change your Lexus key fob battery:
- Locate the Battery Compartment: Most Lexus key fobs have a small release button or notch on the side or back.
- Open the Key Fob: Use your flathead screwdriver or a similar tool to gently pry open the key fob casing at the release point. Be careful not to damage the casing.
- Remove the Old Battery: Once the casing is open, you should see the battery. Use your screwdriver or pliers to carefully remove the old battery.
- Insert the New Battery: Make sure the positive (+) side of the new battery is facing up, just like the old battery. Gently press it into place.
- Close the Key Fob: Align the two halves of the key fob casing and press them together firmly until they snap shut.
- Test the Key Fob: Try locking and unlocking your car to ensure the new battery is working correctly.
Troubleshooting
If your key fob still isn’t working after changing the battery, here are some things to check:
- Battery Orientation: Make sure the battery is installed correctly with the positive (+) side facing up.
- Battery Type: Double-check that you’ve used the correct battery type for your Lexus model.
- Key Fob Programming: In rare cases, you may need to reprogram your key fob after changing the battery. Consult your owner’s manual for instructions on how to do this.
It’s important to maintain your car battery too. If you’re wondering “if my car battery dies will it recharge“, we’ve got a resource for that.
“A dead key fob battery can be a real headache,” says John Smith, Automotive Electrical Engineer at Car Diagnostics Pro. “Fortunately, replacing it is a quick and easy process that anyone can do.” He adds, “Always keep a spare battery on hand so you’re never caught off guard.” A dead key fob battery might seem like a small problem, but it can cause major disruptions. By proactively changing your key fob battery, you can avoid the inconvenience and frustration. You might also find our guide on “car battery dead in winter” helpful.
Conclusion
Changing your Lexus key fob battery is a simple DIY task that takes just a few minutes. By following this guide, you can save yourself the hassle and expense of visiting a dealership or locksmith. Remember to have the correct battery on hand and use the proper tools to avoid damaging your key fob. Now you can enjoy the convenience of a fully functioning key fob. Need a charger for dead car battery? We have you covered. Check out our comprehensive guide on choosing the right charger for your needs. Also, if you’re unsure whether your charger will work, read our article “will a battery charger charge a completely dead battery“.
FAQ
- How often should I change my Lexus key fob battery? Every 2-3 years is a good rule of thumb, but it can vary depending on usage.
- What type of battery does my Lexus key fob use? Consult your owner’s manual for the specific battery type.
- Can I damage my key fob by changing the battery myself? As long as you’re careful and use the correct tools, you should be fine.
- What if my key fob still doesn’t work after changing the battery? Check the battery orientation, battery type, or consult your owner’s manual for reprogramming instructions.
- Where can I buy replacement batteries for my Lexus key fob? Most electronics stores, auto parts stores, and online retailers sell these batteries.
- Is there a way to test my Lexus key fob battery without opening it? Unfortunately, no.
- What should I do with the old key fob battery? Dispose of it properly at a designated battery recycling location.
