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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 vehicle will need a new battery eventually. It is simple to replace the battery in your key fob at a hardware retailer, big-box retailer, or locksmith. However, you must make sure that the locksmith or dealer can program replacement keys for your particular model. How do I replace the battery? If the LED indicator light dims and you are unable to activate Smart Access or push-button starting then it's time to replace the Lexus key fob. Fortunately, the process is easy and can be done from the comfort of your Guaynabo-area home. Follow these simple steps offered by Shottenkirk Desert Lexus to get back on the road swiftly. First, ensure that your workspace and hands are clean and dry. Incorporating water into the battery could cause it to become rusty. Then you can use a flathead screwdriver for opening the cover for the key fob. If you want to avoid scratches, wrap the tip of your screwdriver in a piece of tape. Once the mechanical key has been removed, you can remove the old battery and replace it with a new one. Install the new battery in a way that the positive (+) face is facing up. Install the electronic module, and snap back the fob cover. Remember, that if you're having trouble with your key fob and need assistance, the skilled service technicians at Shottenkirk Desert Lexus can assist you. We also provide Key Replacement Protection when you purchase or lease the Lexus vehicle. This warranty covers fobs and replacement keys and also programming to connect them to your vehicle's security system. Click HERE to find out more about this useful feature or contact our customer service team. How do I activate the battery-saving mode? A Lexus keyfob is a sophisticated piece of technology that allows you to lock or unlock your doors, and start your ignition by pressing a button. It's got hardware that transmits signals to the vehicle, e.g. to automatically open your windows. Over time the battery inside your Lexus key fob might run low, and it's essential to replace it as quickly as possible to ensure the purpose of this vital device. If you won't be using your Lexus Key Fob for several weeks, you can activate the battery-saving mode. This will decrease battery drain. To activate it you need to press and hold the LOCK button while pressing the UNLOCK button twice. The electronic indicator will blink four times and your Lexus keyfob will be in battery saving mode. Press any button on the key fob to restart Smart Access and push-button starting. Changing the battery in your Lexus key fob is a fairly simple task that doesn't require special tools. Start by making sure your hands are completely dry to decrease the chance of moisture rusting the new battery. Then, look for the small button on the side of your key fob. This button allows you to release the emergency key blade that is stored inside. Remove the mechanical key by pressing the release button. Next move the new battery into place with its plus side facing up. How to turn off your key Fob It may seem straightforward however the technology is very sophisticated. It allows you to lock and unlock doors, as well as access the trunk of your Lexus IS 2021 without ever taking your key from your pocket. But it's also got some features that might be a surprise to you. For instance, the panic button on your key fob could help you locate your car in a parking garage, according to Consumer Reports. The loud, enticing sound could repel thieves, according to RepairPal. Keep one in your wallet and purse in case of an emergency. Some cars let you start your engine with an electronic key fob that you can use in cold weather, Consumer Reports notes. Simply hold the lock button on the key fob for 10 seconds to activate this feature. (A note of caution: This feature does not work on all vehicles, so be sure to check your owner's manual.) You can replace your key fob or car keys by contacting a dealer or locksmith service. It's crucial to get the proper assistance to ensure that the replacement key or fob is correctly coded and functions just like the original. lexus spare key 'll need to ensure that the locksmith you hire has the right key blanks and is able to program them correctly for your vehicle. How do I replace the Key Blade Today's high-tech key fobs are more secure than ever before. They unlock cars, lock them and even turn them on with the push of a button. However, all this technology comes with the cost of. A replacement key fob may cost between $200 to $500. Programming it at a dealer may cost even more. Fortunately that replacing the battery on the majority of fobs is fairly inexpensive and simple. To replace the battery on the Lexus key fob, first use a flathead screwdriver to break open the fob. Wrap the edge of the screwdriver's flathead in tape prior to using it to prevent scratching the plastic. If there is an electronic key module that is covering the battery, take it off prior to removing the old one. Replace it with a brand new CR2032 in its place with the positive side facing upwards. Re-attach the electronic module on, and then replace the cover for the key fob. There are several ways you can extend the life of the battery in your key fob, such as keeping it at least three feet from electrical appliances that generate magnetic fields, such as TVs, laptops, cell phones and battery chargers. The battery-saving mode is activated by pressing the UNLOCK and LOCK buttons twice while holding the LOCK button. The electronic indicator for the key will flash four times to ensure that the battery-saving mode has been set. Press any button on your key fob to restart using the Smart Access System or Push Button Start.