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How to Do a Lexus Key Fob Replacement There are some things that every Lexus owner needs to know. No matter if you have a conventional key that turns in the ignition or a smart, push-to-start key, your vehicle will need an upgrade to its battery in the near future. The replacement of your key fob's battery is fairly simple and can be accomplished at an hardware store, locksmith or a big-box retailer. But, it is important to ensure that the locksmith or dealer can make replacement keys for your specific model. How do I replace the battery? If the LED indicator light is dim and you are unable to 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 at your own convenience in your Guaynabo home. Follow lexus key fob from Shottenkirk Desert Lexus and you'll be back on the road in no time. First, make sure your hands and workspace are dry. Introducing moisture into the new battery could cause it to rust. Use an open-ended screwdriver to remove the cover of the key fob. If you want to protect yourself from scratches, wrap the tip of your screwdriver with tape. After the mechanical key has been removed, you can remove the old battery and replace it with a new one. Be sure to insert the new battery with the positive (+) side facing up. Install the electronic module, and snap back the cover of the fob. Be aware that if you're having difficulty with the key fob you have and need help, the experienced service technicians at Shottenkirk Desert Lexus can assist you. We are also proud to provide Key Replacement Protection when you purchase or lease or lease a Lexus vehicle. This warranty offers fobs and keys to replace and the necessary programming required to connect them to the vehicle's immobiliser system. To find out more about this valuable add-on, click HERE or contact our customer service team. How to activate battery-saving mode A Lexus key fob is an incredibly sophisticated piece of technology that allows you to lock and unlock your doors, as well as start your push-button ignition. It's got hardware that transmits signals to the vehicle, e.g. to automatically roll down your windows. In time the battery inside your Lexus key fob might run low, and it's vital to replace it as soon as you can to ensure that you don't compromise the purpose of this vital device. If you're not going to be using your Lexus key fob for a couple of weeks You can switch on battery-saving mode to reduce the depletion of your battery. To activate it simply press and hold the LOCK button while pressing the UNLOCK button three times. The electronic indicator will flash four times and your Lexus keyfob is now on battery saving mode. To restart the start button and Smart Access features, simply press any of the buttons on your fob. It's easy to change the battery in your Lexus Key Fob without any special tools. To minimize the risk of rusting, make sure your hands and new battery are dry. Then, find the small button on the back of your key fob. This button opens the emergency key blade stored inside. Take the mechanical key out by pressing the release button. Slide the new battery into position with its plus-side facing upwards. How to Turn Off Your Key Fob The key fob you have might appear pretty simple, but it's packed with the latest technology. It lets you lock and unlock doors and open the trunk of your 2021 Lexus IS without ever having to remove the key from your pocket. It also has a few secret functions that you'll be amazed by. Consumer Reports says that the panic button on your key fob may help you locate your car in the parking garage. The loud, enticing sound could scare off thieves, reports RepairPal. It's a good idea to keep one in your purse or wallet in case of need. Consumer Reports says that some cars allow you to start your car by using a remote fob during cold weather. Simply press the lock button on the key fob for 10 seconds to activate this feature. (A note of caution: This feature doesn't work with all vehicles, so be sure you check your owner's manual.) If you've lost your car keys, or your fob for keys is damaged, you can have it replaced either through the dealer or a locksmith service. It's crucial to get the proper assistance to ensure that the new key or fob has been properly programmed and functions exactly like the original. You'll want to ensure that the locksmith you hire has the right key blanks, and can program them properly for your vehicle. How to Replace the Key Blade The advanced key fobs of today are more powerful than they have ever been. They unlock vehicles, lock them and even start them at the push of a button. This technology isn't free. A replacement key fob could cost between $200-$500. Having it programmed at a dealer may cost even more. The battery is easily and inexpensively replaced in most fobs. To replace the battery in a Lexus key fob, you must first make use of a flathead screwdriver to unlock the fob. Wrap the blade of the screwdriver's flathead in tape before you use it to avoid scratching plastic. Take off the electronic key module that is covering the battery before removing the old battery. Replace it with a brand new CR2032 in its place, with the positive side facing upwards. Snap the electronic key module back on and put the key fob cover plate back in its place. There are several ways you can prolong the lifespan of the battery in your key fob by keeping it at least three feet from electrical appliances that create a magnetic field, like laptops, TVs and cell phones, and battery chargers. You can also switch on battery-saving mode simply by pressing the LOCK button and pressing the UNLOCK button two times. The electronic key indicator will flash four times to verify that the battery-saving mode has been set. Press any button on your key fob to resume using the Smart Access System or Push Button Start.