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How to Do a Lexus Key Fob Replacement There are a few things every Lexus owner should be aware of. The car will eventually require a new one, whether you are using a conventional key to turn the ignition or a smart push-to-start. Replacing your key fob battery is relatively easy and can be accomplished at a hardware store, locksmith or big-box retailer. However, you should always check that the locksmith or dealer can program replacement keys to your particular model. How to Replace the Battery When the indicator light for the LED is dim and you are unable to activate the push-button start or Smart Access, it's time to replace the Lexus key fob battery. The process is simple and can be done from the comfort of your Guaynabo-area home. Follow these easy instructions by Shottenkirk Desert Lexus to get back on the road quickly. Make sure your hands and the area you work in are dry. Moisture could cause the battery to rust. Then, use thekeylab.co.uk for opening the cover on the key fob. Wrap the top of the screwdriver with tape to avoid scratches. After the mechanical key is removed, you can take out the battery that was in use and replace it with a new one. Be sure to insert the new battery with the positive (+) side facing upwards. Reinstall the electronic module and then snap back the cover of the fob. If you need assistance with your key fob, the service technicians at Shottenkirk Desert Lexus are available to help. We are also proud to provide Key Replacement Protection when you purchase or lease or lease a Lexus vehicle. This warranty covers fobs and replacement keys and also programming to synchronize these with your vehicle's security system. To find out more about this important accessory, click here or contact our support team. How do I activate the 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 begin your push-button ignition. It is equipped with hardware that sends signals to the vehicle, e.g. to automatically open your windows. The battery inside your Lexus' key fob will eventually run out. It is essential to replace the battery as quickly as you can to stop it from compromising its function. If you're not going to be using your Lexus key fob for more than a week it is possible to activate the battery-saving mode to reduce the loss of battery. To activate it, press and hold the LOCK button while pressing the UNLOCK key twice. The LED will blink four times, and your Lexus keyfob is now on battery saving mode. Press any button on your key fob in order to reactivate Smart Access and push-button starting. It's easy to change the battery on your Lexus Key Fob without any special tools. Begin by making sure your hands are dry to avoid the possibility of moisture rusting the new battery. Then, find the small button on the back of your key ring that lets you release the emergency key blade stored inside. Remove the mechanical key by pressing the release button. Next you'll need to slide the new battery in with its plus side facing up. How to switch off your key fob Your key fob might seem pretty simple, but it's stuffed with the latest technology. It lets you lock and unlock doors as well as open the trunk of your 2021 Lexus IS without ever having to remove the 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 can help you find your car in a busy parking garage, says Consumer Reports. The enthralling sound can also deter thieves, according to RepairPal. Keep one in your wallet or purse in case of need. Some vehicles even let you start your engine with the remote key fob during chilly weather, Consumer Reports notes. Simply press the lock button on the key fob for 10 seconds to activate this feature. (A note of caution: This feature may not work with all vehicles, so make sure to check your owner's manual.) If you've lost your car keys, or your fob has been damaged, you can get it replaced by either the locksmith service or the dealer. It is essential to seek the correct assistance to ensure that your replacement key or fob functions as the original. You'll need to ensure that the locksmith you select has the right key blanks and can program them in a way that is appropriate for your car. How do I replace the Key Blade Today's modern key fobs are more capable than ever before. They unlock cars, lock them and even turn them on with the press of a button. However all this technology comes at the cost of. A replacement key fob can cost between $200-$500. If you have it programmed by an authorized dealer could cost more. Fortunately that replacing the battery in the majority of fobs is fairly inexpensive and easy. To replace the battery on a Lexus key fob, first make use of a flathead screwdriver to unlock the fob. If you wish to avoid scratching the plastic, wrap the tip of the screwdriver with tape before using it. If there is an electronic key module covering the battery, remove it before removing the old one. Then place a new CR2032 battery in its place, with the plus side facing up. The electronic key module should be snapped back on and then put the key fob cover plate back in place. You can extend the life of your battery keyfob by making sure it is kept at least three feet from magnetic appliances like TVs, laptops and cell phones. The battery-saving mode is activated by pressing the LOCK and UNLOCK buttons twice while holding the LOCK button. The electronic indicator on the key will flash four times in order to confirm that the battery-saving mode is activated. Press any button on your key fob to restart using the Smart Access System or Push Button Start.