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How to Do a Lexus Key Fob Replacement There are a few things every Lexus owner should know. If you have a traditional key that turns on the ignition or a smart, push-to-start key, your vehicle will need a new battery at some point. It is easy to replace the battery on your key fob by visiting a hardware store, big-box retailer or locksmith. Make sure that the locksmith can make replacement keys for your specific model. How to Replace the Battery If the indicator light on the LED dims and you can't activate Smart Access or push-button starting, it is time to replace the Lexus key fob. The process is easy and can be performed at the comfort of your Guaynabo home. Follow these simple steps offered by Shottenkirk Desert Lexus to get back on the road quickly. Make sure that your hands and area of work are dry. Moisture can cause the battery to be rusty. Use a flathead to open up the cover of the key fob. If you want to avoid scratches, cover the tip of your screwdriver in tape. Once the mechanical key has been removed then you can remove the old battery and install the new one. Make sure to insert the new battery with the positive (+) side facing up. Then, you can reinstall the electronic key module and snap the cover back in the correct position. If you require assistance with your key fob, the technicians who service your key at Shottenkirk Desert Lexus are available to assist. We also offer Key Replacement Protection when you purchase or lease a Lexus vehicle. This warranty provides fobs and keys that can be replaced and the associated programming needed for synchronization with the immobiliser system of your vehicle. Click HERE to learn more about this important feature or contact our customer support team. How do I activate the Battery-Saving Mode A Lexus key fob is a remarkably sophisticated piece of technology that allows you to lock and unlock your doors, as well as begin your push-button ignition. It's got hardware that transmits signals to your car to do things like automatically shutting the windows. The battery inside your Lexus key fob will eventually run out. It is crucial to replace the battery as soon as you can to stop it from compromising its function. If you're not likely to use your Lexus key fob for several weeks you can turn on the battery-saving mode in order to limit the amount of battery left. Press and hold the LOCK key while pressing UNLOCK button twice. The electronic indicator will flash four times, and your Lexus keyfob is now in battery saving mode. Press any button on the key fob to restart Smart Access and push-button starting. It's easy to change the battery in your Lexus Key Fob, without special tools. Start by ensuring that your hands are completely dry to reduce the risk of moisture rusting the new battery. Find the small button on the side of the key fob. This button opens the emergency blade stored inside. Release the button and remove the mechanical key. Then move the new battery in with its plus side facing upwards. How to turn off lexus spare key could appear rather simple, but it's loaded 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 comes with some hidden functions that you'll be amazed by. Consumer Reports says that the panic button on your key fob might assist you in finding your car in the parking garage. RepairPal says that the loud sound could also deter thieves. This is a good reason to keep one in your wallet or purse just in case. Some vehicles even let you start your engine with the remote key fob during 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 won't work on all vehicles, so be sure to read the owner's manual.) If you've lost your car keys, or your fob for keys is damaged, you can get it replaced by either the dealer or a locksmith service. It's important to get the correct assistance to ensure that your replacement key or fob functions as the original. For instance, you'll want to ensure that the locksmith you choose has the correct key blank and can program it properly for your particular vehicle. How do I replace the Key Blade The latest high-tech key fobs are more secure than ever before. They unlock vehicles, lock them and even start them with the touch of a button. The technology isn't free. A replacement key fob can cost anywhere from $200 to $500, and having it programmed by a dealer can run even more. Fortunately replacement of the battery in most fobs is inexpensive and simple. To replace the battery on a Lexus key fob, first make use of a flathead screwdriver to unlock the fob. If you want to avoid scratching the plastic, wrap the edge of the screwdriver in tape prior to using it. If there is an electronic key module that covers the battery, take it off before taking out the old one. Replace it with a brand new CR2032 in its place and place it with the positive side facing up. Connect the electronic module on, and then replace the cover for the key fob. There are some ways you can extend the life of the battery in your key fob by keeping it three feet away from electrical appliances that generate a magnetic field, like TVs, laptops, cell phones and battery chargers. The battery-saving mode can be activated by pressing the UNLOCK and LOCK buttons twice while holding the LOCK key. The electronic indicator for the key will flash four times in order to confirm that the battery-saving mode is activated. Press any button on the key fob to start using the Smart Access System or Push Button Start.