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How to Do a Lexus Key Fob Replacement There are a few things every Lexus owner should know. No matter if you use a conventional key that turns on the ignition, or a smart push to start key, your vehicle will require an upgrade to its battery in the near future. It is easy to replace the battery on your key fob by visiting a hardware store, big-box retailer or locksmith. However, you should always check that the locksmith or dealer can program replacement keys for the model you have chosen. How to replace the battery If the LED indicator light becomes dim and you can't switch on push-button start or Smart Access, it's time to replace the Lexus key fob battery. The process is easy and can be carried out at the comfort of your Guaynabo home. Follow these simple instructions from Shottenkirk Desert Lexus and you'll be back on the road in the blink of an eye. Make sure that your hands and workspace are clean and dry. Incorporating moisture into the new battery could cause it to rust. Use flatheads to open the cover of the key fob. If you want to protect yourself from scratches, cover the tip of your screwdriver in a piece of tape. After the mechanical key is removed, you can remove the old battery and replace it with a brand new one. Be sure to put in the new battery with the positive (+) side facing upwards. Reinstall the electronic module and then snap back the cover of the fob. Be aware that if there's a problem with your key fob, and require assistance, the skilled service technicians at Shottenkirk Desert Lexus can assist you. We are also proud to offer Key Replacement Protection when you purchase or lease the Lexus vehicle. This warranty covers fobs and keys for replacement as well as programming required to synchronize these with your vehicle's security system. Click HERE to learn more about this useful feature or contact our customer support team. How to Activate Battery-Saving Mode A Lexus key fob is a highly sophisticated piece of technology that lets you to lock and unlock your doors and start your push-button ignition. It's got hardware that transmits signals to the vehicle, e.g. to automatically open your windows. As time passes, the battery in your Lexus key fob might run low, and it's vital to replace it as quickly 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 several weeks, you can switch on 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 key twice. The electronic indicator will blink four times and your Lexus keyfob is now in battery saving mode. To activate the start button and Smart Access features, simply press any of the buttons on your fob. The battery replacement in your Lexus key fob is a simple task that doesn't require special tools. Start by making sure your hands are dry to reduce the risk of moisture rusting the new battery. Then, locate the small button on the back of your key fob that lets you release the emergency key blade that is 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 turn off your key Fob It may seem simple 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 the key from your pocket. It also has a few hidden features that you could be surprised by. For example the panic button on your key fob can help you locate your car in a congested parking garage, says Consumer Reports. RepairPal reports that the booming sound could also discourage thieves. Keep one in your wallet or purse in case of need. Some vehicles even let you start your engine using an electronic key fob that you can use in cold weather, Consumer Reports notes. Simply press the lock button on the key fob for 10 seconds to activate this feature. Note: This feature may not work with all vehicles. Read G28CarKeys . If you've lost the keys to your car or your fob has been damaged, you can have it replaced by either the locksmith service or a dealer. It's essential to get the correct assistance to ensure that the new key or fob works like the original. For instance, you'll want to ensure that the locksmith you use has the right key blank and is able to program it correctly for the specific vehicle you have. How do I replace the Key Blade The latest high-tech key fobs are more powerful than ever before. They unlock vehicles, lock them and even allow them to start with the touch of a button. However, all this technology comes with costs. Buying a replacement key fob is priced at $200 to $500, and getting it programmed by a dealer can cost even more. Fortunately replacement of the battery in most fobs is inexpensive and simple. To replace the battery in the Lexus key fob, you must first employ a flathead screwdriver pop open the fob. If you'd like to prevent scratching the plastic, cover the end of the screwdriver with tape before using it. If there is an electronic key module that covers the battery, remove it prior to removing the old one. Then, put a brand new CR2032 battery in its place, with the plus side facing up. The electronic module should be re-snapped on, and then replace the key fob cover. You can extend the battery life of your keyfob by keeping it at least 3 feet 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 key. The electronic indicator on the key will flash four times to ensure that the battery-saving mode has been set. To restart the use of your Smart Access System and Push Button Start, press any button on the key fob.