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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 then start it without ever taking it from your pocket. The battery of the key fob will eventually die. You can replace the battery using an CR2032 Lithium battery (available in most electronics or hardware stores). Here's how! Keyless Entry Your Lexus key fob contains hardware that connects to the sensors in your vehicle. It lets you lock and unlock your doors and trunk, as well as open it and then start the ignition by pressing a button. This amazing convenience makes driving a Lexus more fun than any other vehicle. The key fob could require replacement with an additional battery at some point in order to work effectively. The good news is that you can extend the life of the battery on your key fob by keeping it at a minimum of three feet away from electrical appliances that produce magnetic fields, like cellphones, televisions, batteries, induction cookers, battery chargers and table lamps. This is because the closer your key fob is to these devices, the greater power it uses. Another method to ensure your key fob will last a long time is to use it only for the functions you require. You can also save battery life by reducing the you hold the buttons. Press the LOCK and UNLOCK buttons simultaneously. The electronic key indicator will blink four times to show that your key fob is in the battery-saving mode. Once the lights stop flashing, you can press any button on your key fob to start it working again. Visit our service center in Manhasset to learn more about how to maximize the performance of your Lexus key fob. Immobilizer System When you insert the key into the ignition it transmits an identification code to a receiver within the car. If the ID code matches that in its memory, then the car's computer allows the engine start. If the ID code does not match, an immobilizer will be activated that stops the car from getting started. This technology isn't 100% secure but it works even in the event that you lose your keys. It is possible to “hack”, or manipulate the radio wave anti-theft system. The thief could employ an aerial antenna to pick up the signal and then spoof it into telling the car that the key is present. Experts are putting together more secure systems to thwart this. Some systems offer WiFi connectivity un-detectable installations, as well as pin code entry through buttons on the dashboard. To help buyers choose the most reliable security features, Thatcham Research offers a assessment and approval process to make it easier to compare the various products. If you are concerned about the anti-theft device in your vehicle, replacing the battery is the easiest task to complete. A quick check of the owner's manual will aid you in locating the correct replacement. Fuses are also a concern, so you should be sure to check them frequently. The replacement is available at the auto parts store if one blows. Key Blade Your Lexus key comes with an aluminum blade that can be used to open the cylinders of lock on your vehicle's ignition and doors. Your key fob contains hardware that connects to the Smart Access system of your vehicle, and also a button to start your car. While your key fob has been designed to last for a long duration, everyday use and exposure to elements of the weather could cause it to fail earlier than you think. To prevent this from happening it is recommended to keep your key fob away from your vehicle as far as you can, to stop the frequency of its proximity sensors connecting and draining battery power. If your key fob's battery is running low We're here for you. We'll guide you through the procedure of replacing your key fob's battery and give you ways to avoid the hassle. CLK Supplies, LLC provides high-end Toyota Lexus blank keys. Our Holmdel dealership can help you locate the correct replacement part during your next visit to the store. When you place your order at checkout we'll cut the new key blade prior to when it ships! Digital Key One of the coolest features of the Lexus key is its digital key, which allows you to lock and unlock your vehicle and even start the engine with a one touch on your smartphone. You can also roll down the windows or open the moonroof using this feature. Get More Information 'll need to talk to an expert in order to have this feature activated. You can also share the digital key with family or friends, especially when your car is left at home on your trip. To do this, hold and press the lock symbol on your key fob while tapping the lock icon on your phone. Your Lexus will then display an “Unlock” message. Pressing the lock and unlock button on your key fob at the same time will trigger the battery-saving mode in the event that you are leaving your car. Press the lock button to reactivate the vehicle. Make sure you don't place your key fob within three feet of appliances that generate magnetic fields. This will extend the life of the battery. This includes TVs, laptops, cell phones, and battery chargers. If you're in search of an replacement battery for your key fob or other automotive components, contact CLK Supplies, LLC near Manhasset for top quality Toyota Lexus key blanks. They're made from premium materials and are covered by a warranty against any defects.