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How to Do a Lexus Key Fob Replacement There are a few things that every Lexus owner should know. Your car will eventually require an overhaul, regardless of whether you use a conventional key to turn the ignition off or an intelligent push-to-start. It is simple to change the battery on your key fob by visiting a hardware store, big-box retailer or locksmith. But, it is important to check that the locksmith or dealer can program replacement keys for the model you have chosen. How to replace the battery When the LED indicator light becomes dim and you can't use the push-button start feature or Smart Access, it's time to replace your Lexus key fob battery. The process is easy and can be completed 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 new battery to rust. Then, use an open-ended screwdriver to remove the key fob cover. If you want to protect yourself from scratches, cover the tip of your screwdriver in a piece of tape. Once the mechanical key has been removed and the battery is removed, you can remove the old battery and install the new one. Make sure to put in the new battery with the positive (+) side facing upwards. Then, you can reinstall the electronic key module and snap the fob cover back in the correct position. Keep in mind, that if you're experiencing difficulties with your key fob and require assistance, the skilled service technicians at Shottenkirk Desert Lexus can assist you. We also offer Key Replacement Protection when you purchase or lease or lease a Lexus vehicle. This warranty offers fobs and keys for replacement as well as the programming required to sync them with the vehicle's immobiliser system. To find out more about this useful add-on, click HERE or contact our service team. How do I activate the Battery-Saving Mode A Lexus key fob is a remarkably sophisticated piece of technology that lets you to lock and unlock your doors, as well as start your push-button ignition. It has hardware that sends 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 crucial to replace it as soon as you can in order to not compromise the purpose of this vital device. If you're not going to be using 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 the UNLOCK key twice. The indicator on the electronic will flash four times, and your Lexus key fob is now in battery-saving mode. To reactivate the push-button start and Smart Access features, simply press any of the buttons on the fob. It's easy to change the battery inside your Lexus Key Fob with no special tools. Start by ensuring that your hands are completely dry to minimize the chance of moisture rusting the new battery. Then, locate the small button on the side of your key fob. This button lets you release the emergency key blade inside. Release the button and remove the mechanical key. Slide the new battery into position with its plus side facing up. How do you turn off your key fob It may appear simple, but the technology inside is extremely sophisticated. It allows you to 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 hidden functions that you may be amazed by. For instance, the panic button on your key fob can help you find your car in a congested parking garage, says Consumer Reports. The enthralling sound can also make thieves nervous, according to RepairPal. It's a good reason to keep one in your wallet or purse just in case. Consumer Reports says that some cars will even allow you to start your car using a remote fob during cold weather. Simply hold replacement keys for lexus on the key fob for 10 seconds to activate this feature. It is important to note that this feature may not work on all vehicles. Check your owner's guide. You can replace your fob for keys or car keys by contacting the locksmith service or a dealer. It's essential to get the correct assistance to ensure that your new key or fob works like the original. You'll want to ensure that the locksmith you choose has the right key blanks and can program them in a way that is appropriate for your car. How to Replace the Key Blade The latest high-tech key fobs are more secure than ever before. They unlock cars, lock them, and even turn them on with the touch of a key. The technology isn't free. A replacement key fob may cost between $200-$500. Having it programmed at a dealer may cost even more. The battery is easily and inexpensively replaced in the majority of fobs. To replace the Lexus keyfob battery you will need a flathead screwdriver to pry open the fob. Wrap the blade of the screwdriver's flathead in tape prior to using it to avoid scratching plastic. If there is an electronic key module encasing the battery, remove it before taking out the old one. Replace it with a brand new CR2032 in its place in a positive position, with the positive facing up. The electronic key module should be snapped back in place and secure the key fob cover back in its place. You can extend the battery life of your keyfob by keeping it at least 3 feet away from magnetic appliances, such as laptops, TVs and cell phones. The battery-saving mode can be activated by pressing the LOCK and UNLOCK buttons two times while holding the LOCK button. The indicator on the electronic key will flash four times to confirm that the battery-saving mode is activated. Press any button on your key fob to resume using the Smart Access System or Push Button Start.