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When Your Lexus Smart Key Fails The Smart Key is an ultra-convenient feature that allows you to lock and unlock your 2021 Lexus IS, open the trunk, and start it without ever taking it from your pocket. The key fob battery will eventually degrade. You can replace the battery using an CR2032 Lithium battery (available in most electronic or hardware stores). Here's how! Keyless Entry Your Lexus key fob has hardware that connects to the sensors in your vehicle to let you lock and unlock your doors, open the trunk, and then start the ignition by pressing a button. This is an incredible convenience that makes driving in a Lexus far more enjoyable than it would be in an ordinary car. The key fob may need to be replaced with the battery at some point to function correctly. You can prolong the life of your key fob by keeping it away from magnetic devices like TVs mobile phones, TVs, battery chargers as well as induction cooktops and table lamps. The closer your key fob is to these appliances, the more power they will use. You can also extend the life of your key fob by only using it only for the functions you require. You can also save your battery by reducing the time you use your buttons. To do this, hold the LOCK button and the UNLOCK button at the same time. The electronic key indicator will blink four times to indicate that your key fob has entered battery-saving mode. When the lights stop flashing you can press any button on your key fob to make it work again. Visit our service center in Manhasset to learn more about how you can maximize the performance of your Lexus keyfob. Immobilizer System When you insert the key into ignition, it sends an identification code to a receiver inside the car. If the ID code matches with one in its memory, the car's computer lets the engine begin. However, if the ID code doesn't match, it triggers an immobilizer which prevents the engine from running. This technology is not foolproof however, it can be effective even in the event that you lose your keys. It is possible to “hack” an anti-theft system using radio waves. A thief can use an aerial antenna, and then spoof the signal to tell that the car's key is in the ignition. To get around this, experts are working on more secure systems. Some offer WiFi connectivity with undetectable installation as well as pin code entry via buttons on the dashboard. Thatcham Research has developed a system of grading and approbation to allow buyers to compare products. If you're concerned regarding the security system in your car the most straightforward thing to do is replace the battery if it's old. You can locate the proper replacement by looking up the owner's manual. Fuses could also be a problem so be sure to examine them regularly. A replacement can be found at the auto parts store in case one blows. Key Blade Your Lexus key includes a metal emergency key blade that will open the lock cylinders in the doors of your vehicle and also the ignition. The key fob is equipped with hardware for communication with the Smart Access system of your car, as well as a push-button for starting. Your key fob may be designed to last for an extended period of time, but regular use and exposure to the elements of the weather can make your key fail sooner than expected. To help prevent this, we recommend you store your key fob away from your vehicle as much as you can to prevent its proximity sensors from continuously connecting and consuming battery power. We're here to help with your battery issues if your key fob runs out. We'll guide you through the process of replacing the battery in your key fob and even give you some tips to avoid the hassle. CLK Supplies, LLC provides high-end Toyota Lexus blank keys. You can find the exact replacement you require during your next trip to our Holmdel dealership. When you place your order at checkout we'll make your new key blade before it's shipped! Digital Key The digital key is among the most innovative features of the market for a Lexus. It lets you to lock or unlock your vehicle and even start the engine with just a tap of your mobile device. You can even open the windows or open the moonroof using this feature. You'll need to talk to an expert to activate this feature. You can also utilize the digital key to share access with family and friends, particularly if you're planning on leaving your car at home while you travel. 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. If you're leaving your car for a period of time, you can activate battery-saving mode by pressing the lock and unlock buttons on your key fob at the same time. Press the lock button in order to restart the vehicle. Make sure you don't place your key fob within three feet of devices that produce magnetic field. This will extend the life of the battery. This includes laptops, TVs as well as cell phones and battery chargers. If lexus key in search of a replacement battery for your key fob or other parts for your car contact CLK Supplies, LLC near Manhasset for top-quality Toyota Lexus key blanks. The key blanks are made of high-quality materials and come with a guarantee.