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There are some things every Lexus owner needs to know. The car will eventually require an overhaul, regardless of regardless of whether you use a standard key to turn the ignition off or a smart push-to-start.
It is simple to replace the battery in your key fob at a hardware store, big-box retailer or locksmith. It is essential to ensure that the locksmith has the ability to program replacement keys to the model you have.
How to replace a Battery
If the LED indicator light gets dim and you're unable to use the push-button start feature or Smart Access, it's time to replace your Lexus key fob battery. Fortunately, the process is simple and can be performed from the comfort of your home in Guaynabo. Follow these easy steps from Shottenkirk Desert Lexus and you'll be back on the road in no time.
First, ensure that your workspace and hands are completely dry - introducing water into the battery could cause it to become rusty. Use a flathead to open the cover of the key fob. If you want to avoid scratches, wrap the tips of your screwdriver with tape. After the mechanical key is removed, you can remove the old battery and replace it with a new one. Be sure to insert the new battery with the positive (+) side facing up. Install the electronic module, and then snap back the fob cover.
If you require assistance with your key fob, the service technicians at Shottenkirk Desert Lexus are available to assist. We are also proud to offer Key Replacement Protection when you purchase or lease or lease a Lexus vehicle. This warranty covers fobs and replacement keys as well as the programming required to sync them with your vehicle's security system. To learn more about this important accessory, click here or contact our service department.
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 contains hardware which sends signals to the vehicle, e.g. to automatically roll down your windows. The battery in your Lexus key fob will eventually run out. It is essential to replace the battery as soon as you can to prevent it from compromising its function.
If you don't plan to use your Lexus Key Fob for a couple of weeks, you can activate the battery-saving mode. This will minimize the drain on your battery. Press and hold the LOCK key while pressing the UNLOCK twice. The indicator on the electronic will blink four times, and your Lexus keyfob is now in battery saving mode. To reactivate the push-button start and Smart Access features, simply press any of the buttons on your fob.
It's simple to change the battery on your Lexus Key Fob without the need for special tools. To reduce the chance of getting rusty, make sure your hands and new battery are dry. Find the small button on the side of your key fob. It releases the emergency key blade that is stored inside. Push the release button and take off the mechanical key. Slide the new battery in with its plus side facing up.
How to Turn Off Your Key Fob
The key fob may appear pretty simple, but it's stuffed with advanced 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. It also has a few secret functions that you may be amazed by.
For instance the panic button on your key fob can help you locate your car in a busy parking garage, says Consumer Reports. The attention-grabbing blare could also make thieves nervous, according to RepairPal. Keep one in your wallet and purse in the event of an emergency.

Some vehicles even let you start your engine with a remote key fob even in cold weather, Consumer Reports notes. Press the lock button for 10 seconds on the fob to activate this feature. (A note of caution: This feature doesn't work with all vehicles, so make sure you check your owner's manual.)
You can replace your key fob or lost car keys with a dealer or locksmith service. It's crucial to get the right help to ensure that the new key or fob is correctly programmed and functions exactly like the original. For instance, you'll want to ensure that the locksmith you choose has the correct key blank and is able to program it correctly for your specific vehicle.
How do I replace the Key Blade
The high-tech key fobs of today are more efficient than ever. With the touch of a button, they can unlock, lock, and even start automobiles. However, all this technology comes at a cost. A replacement key fob could cost between $200 and $500. If you have it programmed by an authorized dealer could cost more. The battery can be easily and cheaply replaced in most fobs.
To replace the battery in a Lexus key fob, you must first make use of a flathead screwdriver to break open the fob. Wrap the edge of the screwdriver's flathead in tape prior to using it to avoid scratching the plastic. Remove the electronic key module that covers the battery before taking out the old one. Then, put a brand new CR2032 battery in its place with the plus side facing upwards. Snap the electronic key module back on and put the key fob cover back into place.
There are several things you can do to extend the lifespan of the battery in your key fob for example, keeping it three feet away from electrical appliances that generate magnetic fields, such as TVs, laptops, cell phones, and battery chargers. You can also turn on the battery-saving mode by holding down the LOCK button, and then pressing the UNLOCK button three times. The electronic indicator on the key will flash four times to ensure that the battery-saving mode has been activated. Press any button on your key fob in order to resume using the Smart Access System or Push Button Start.