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How to Do a Lexus Key Fob Replacement There are some things that every Lexus owner needs to know. No matter if you have a conventional key that rotates in the ignition or a smart push-to start key, your car will require a new battery sooner or later. It is simple to change the battery on your key fob at a hardware store, big-box retailer or locksmith. However, you should always make sure that the locksmith or dealer can program replacement keys for your particular model. How to replace a battery If the LED indicator light is dim and you are unable to use Smart Access or push-button starting the process, it's time to replace the Lexus key fob. The procedure is simple and can be carried out at your own convenience in your Guaynabo home. Follow these simple steps from Shottenkirk Desert Lexus and you'll be back on the road in just a few minutes. Make sure that your workspace and hands are completely dry – introducing moisture into the new battery can cause it to get rusty. Then take the flathead screwdriver to break the cover on the key fob. Then, wrap the tip of your screwdriver with tape to avoid scratches. After the mechanical key has been removed then you can remove the battery you have been using and replace it with the new one. Make sure you put in the new battery with the positive (+) side facing up. Then, you can reinstall the electronic key module and secure the fob cover back in its place. If you require assistance with your key fob, the technicians who service it at Shottenkirk Desert Lexus are available to help. We also offer Key Replacement Protection when you purchase or lease the Lexus vehicle. This warranty covers fobs and keys to replace and the programming required for synchronization with your vehicle's immobiliser. Click HERE to find out more about this useful feature or contact our customer service team. How to activate 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 ignition with a push button. It contains hardware which sends signals to the vehicle, e.g. to automatically roll down your windows. As time passes, the battery in your Lexus key fob could become low, and it's essential to replace it as quickly as possible to avoid compromising the function of this vital device. If you're not planning to be using your Lexus key fob for a couple of weeks, you can activate battery-saving mode to minimize the depletion of your battery. Press and hold the LOCK key while pressing UNLOCK key twice. The indicator on the electronic will blink four times and your Lexus keyfob is now on battery saving mode. Press any button on your key fob to reactivate Smart Access and push-button starting. It's easy to change the battery inside your Lexus Key Fob without any special tools. Make sure that your hands are dry to decrease the chance of moisture rusting your new battery. Find the small button on the side of your key ring that opens the emergency key blade that is stored inside. The mechanical key is removed by pressing the release button. Slide the new battery into position with its plus-side facing upwards. How to Turn Off Your Key Fob It may appear simple it's not, but the technology is quite sophisticated. 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 has hidden functions that may surprise you. For instance the key fob's panic button could help you locate your car in a parking garage, says Consumer Reports. The attention-grabbing blare could also deter thieves, according to RepairPal. Keep one in your wallet or purse in case of emergency. Consumer Reports says that some automobiles will allow you to start your car with a remote fob during cold weather. 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 on all vehicles, so be sure to check your owner's manual.) If you've lost the keys to your car or your fob has been damaged, you can get it replaced via the locksmith or dealer. But it's important to have the right help to ensure that the replacement key or fob is properly programmed and functions exactly like the original. It is essential to ensure that the locksmith you select has the correct key blanks and can program them correctly for your vehicle. How to replace the Key Blade Today's modern key fobs are more efficient than ever before. With a touch of the button, they're able to unlock or lock and even start vehicles. However all this technology comes at costs. G28CarKeys could cost between $200-$500. The programing process at a dealer may cost even more. The battery can be easily and cheaply replaced in the majority of fobs. To replace the Lexus keyfob battery, use a flathead to open the fob. If you want to avoid scratching the plastic, cover the tip of the screwdriver with tape prior to using it. If there is an electronic key module covering the battery, take it off prior to removing the old one. Place a new CR2032 in its place, with the positive side facing up. Snap the electronic key module back on and then put the key fob cover back in place. You can prolong the life of your battery keyfob by keeping it at least 3 feet away from magnetic devices, such as laptops, TVs, and cell phones. You can also switch on battery-saving mode by pressing the LOCK button and pressing the UNLOCK button three times. The electronic indicator for the key will flash four times to ensure that the battery-saving mode is set. To restart the use of your Smart Access System and Push Button Start, press any button on the key fob.