How to Do a Lexus Key Fob Replacement
There are a few things every Lexus owner should be aware of. Whether you drive a conventional key that turns on the ignition or a smart push-to-start key, your car will need a new battery sooner or later.
It is simple to replace the battery in your key fob at a hardware store, big-box retailer or locksmith. But, you should check that the locksmith or dealer can program replacement keys for the model you have chosen.
How to Replace the Battery
If the LED indicator light becomes dim and you can't switch on push-button start or Smart Access, it's time to replace the Lexus key fob battery. The procedure is simple and can be performed from the comfort of your Guaynabo-area home. Just follow these simple instructions from Shottenkirk Desert Lexus and you'll be back on the road in no time.
Make sure that your hands and area of work are dry. Moisture could cause the battery to get rusty. Then TheKeyLab can use the flathead screwdriver to break the key fob cover. If you want to avoid scratches, wrap the edge of your screwdriver in a piece of tape. Once the mechanical key is removed and the battery is removed, you can remove the battery you have been using and replace it with an alternative one. Insert the new battery so that the positive (+) face is facing upwards. Then, install the electronic key module and then snap the cover back in the correct position.
If you need assistance with your key fob the service technicians at Shottenkirk Desert Lexus are available to assist. We also provide Key Replacement Protection, available when you lease or purchase a brand new Lexus vehicle. This warranty provides fobs and keys to replace as well as the associated programming needed to synchronize them with the immobiliser system of your vehicle. Click HERE to learn more about this valuable addition or contact our customer support team.
How to activate Battery-Saving Mode

A Lexus keyfob is a nifty piece of technology that allows you to lock or unlock your doors and start your ignition with a push button. It's got hardware that transmits signals to your vehicle to do things like automatically shutting the windows. The battery in your Lexus' key fob will eventually run out. It is important to replace the battery as quickly as you can, to prevent it from degrading its purpose.
If you're not going to use your Lexus key fob for several weeks you can turn on the battery-saving mode in order to limit battery depletion. Press and hold the LOCK key while pressing the UNLOCK twice. The electronic indicator will flash four times, and your Lexus key fob is now in battery-saving mode. Press any button on your key fob to reactivate Smart Access and push-button starting.
The battery replacement in your Lexus key fob is a simple task that doesn't require any special tools. To avoid corrosion, ensure that your hands and new battery are completely dry. Find the small button on the back of the key fob. This button releases the emergency blade that is stored within the. Release the button and take out the mechanical key. Slide the new battery in with its plus-side facing forward.
How to turn off your key Fob
It may seem straightforward however the technology is quite sophisticated. It lets you lock and unlock doors as well as access the trunk of your 2021 Lexus IS without ever having to remove the key from your pocket. It also has some secret functions that you'll be amazed by.
For example the panic button on your key fob will help you locate your car in a congested parking garage, says Consumer Reports. The loud, enticing sound could scare off thieves, reports RepairPal. Keep one in your wallet or purse in case of emergency.
Consumer Reports says that some vehicles will allow you to start your car using remote fobs in cold weather. Simply hold the lock button on the key fob for 10 seconds to activate this feature. It is important to note that this feature may not work with all vehicles. Review the owner's manual.
You can replace your key fob or lost car keys by contacting a dealer or locksmith service. But it's important to have the right help to ensure that the new key or fob is properly programmed and functions exactly like the original. For instance, you'll want to make sure the locksmith you choose has the correct key blank and is able to program it correctly for your specific vehicle.
How do I replace the Key Blade
Key fobs that are high-tech today are more efficient than ever. With the touch of an button, they are able to unlock or lock, and start automobiles. However all this technology comes at costs. A replacement key fob may cost between $200 and $500. Having it programmed at an authorized dealer could cost more. The battery is easily and inexpensively replaced in most fobs.
To replace the battery on a Lexus key fob, you must first make use of a flathead screwdriver to remove the fob. Wrap the blade of the screwdriver's flathead in tape before you use it to avoid scratching the plastic. Remove the electronic key module that covers the battery prior to taking off the old one. Place a new CR2032 in its place in a positive position, with the positive facing up. Connect the electronic module on, and then replace the key fob cover.
You can prolong the battery life of your keyfob by keeping it at least three feet from magnetic appliances like laptops, televisions, and cell phones. You can also activate battery-saving mode by holding down the LOCK button and pressing the UNLOCK key twice. The indicator on the electronic key will flash four times to confirm that the battery-saving mode is set. Press any button on your key fob in order to resume using the Smart Access System or Push Button Start.