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When Your Lexus Smart Key Fails The Smart Key is an ultra-convenient feature that lets you lock and unlock your 2021 Lexus IS, open the trunk, and start it without ever taking it from your pocket. The battery of the key fob will eventually degrade. You can replace the battery with the CR2032 Lithium batteries (available in a majority of electronics or hardware stores). Here's how! Keyless Entry Your Lexus key fob comes with a hardware that communicates with sensors in your vehicle to unlock and lock doors and trunks. Simply open the trunk and turn on the push-button engine. This is a fantastic convenience that makes driving with a Lexus so much more fun than driving conventional cars. The key fob will eventually need batteries replaced in order to perform as it should. The good news is that you can extend the life of your key fob's battery by keeping it at least three feet away from electrical appliances that create magnetic fields, such as cellphones, televisions, batteries, induction cookers, battery chargers and table lamps. This is because the closer your key fob is these devices, the more power it uses. You can also prolong the life of your key fob by using it for the functions you need. You can also reduce the use of your battery by reducing the time you press your buttons. Hold the LOCK and UNLOCK buttons at the same time. The electronic key indicator will flash four times to indicate that your key fob has entered battery-saving mode. Press any button on the key fob once the lights have stopped flashing to restore it in working condition. Visit our service center in Manhasset to find out more about ways to maximize the performance of your Lexus keyfob. Immobilizer System When you insert your key into the ignition, it sends an ID code to a device inside the car. If the ID code matches that in its memory, then the car's computer lets the engine begin. If the ID code doesn't match, an immobilizer will be activated that stops the car from beginning. The technology isn't completely foolproof but it works even if you lose your keys. It is possible to “hack”, or manipulate the anti-theft radio wave system. The thief could employ an aerial antenna to pick up the signal and spoof it into telling the vehicle that the key is present. To get around this, experts are working on safer systems. Some offer WiFi connectivity with undetectable installation as well as pin code entry via buttons on the dashboard. To help buyers choose the most secure security features, Thatcham Research offers a rating and approval system to help you evaluate products. If you are worried about the anti-theft system in your car, replacing the battery is the most straightforward task to complete. A quick check of the owner's manual can assist you in finding the proper replacement. Fuses can also be a problem, so you should make sure you check them on a regular basis. If one fails, a replacement can be easily located at an auto parts store. Key Blade Your Lexus key includes a metal emergency key blade which will open the lock cylinders in your vehicle's doors as well as the ignition. The key fob is equipped with hardware for communication with the Smart Access system of your vehicle and a button for starting. The key fob might be made to last an extended time, but the constant use and exposure to elements of the weather could cause your key to malfunction sooner than expected. To prevent this from happening, store your keyfob as far away from your car as possible. This will help reduce the battery drain caused by proximity sensors. We're here to help you if the battery in your key fob goes out. We'll help you navigate the process of replacing the battery on your key fob and give you ways to avoid the hassle. CLK Supplies, LLC offers high-end Toyota Lexus key blanks. You can find the exact replacement you need on your next visit to our Holmdel dealership. When you order during checkout, we'll cut your new key blade before it is shipped! Digital Key One of the most exciting features of a Lexus key is its digital key, which lets you to lock or unlock your car and even start your engine with pressing a button on your mobile device. You can even open the windows or moonroof with this feature. It is necessary to speak with a technician in order to have this feature activated. You can also make use of the digital keys to share access with your family and friends, particularly when you're planning to leave your car at home as you travel. To do this, hold down the lock symbol located on the key fob and tap the lock icon on your phone. Your Lexus will then display an “Unlock” message. If you're leaving your car for a time it is possible to activate the battery-saving mode by pressing the lock and unlock buttons on your key fob simultaneously. Then The Keylab can press the lock button again to activate your vehicle. Do not place your key fob within three feet of the appliances that generate magnetic fields. This will prolong the battery's life. This includes TVs and laptops as well as mobile phones, battery chargers and even mobile phones. If you're looking for a replacement battery for your key fob or other automotive parts, contact CLK Supplies, LLC near Manhasset for top-quality Toyota Lexus key blanks. The key blanks are made from top quality materials and come with a warranty.