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When Your Lexus Smart Key Fails

The Smart Key is an ultra-convenient feature that allows you to lock and unlock your 2021 Lexus IS, open the trunk, and begin it without ever removing it from your pocket. However, there comes a time when the battery on the key fob is dead.

Luckily, you can replace the battery yourself using a flathead screwdriver as well as a lithium battery CR2032 (available at many electronic stores or hardware stores). Here's how!

Keyless Entry

Your Lexus key fob is armed with a hardware that communicates with sensors in your vehicle to unlock and lock doors as well as open your trunk and turn on the push-button engine. This is an amazing convenience that makes driving a Lexus significantly more enjoyable than it would be in an ordinary car. The key fob may require replacement with an entirely new battery at some point in order to work effectively.

You can prolong the life of your keyfob by keeping it out from appliances that are magnetic, such as TVs mobile phones, TVs chargers induction cooktops, table lamps. The closer your keyfob is to these gadgets, the more power they'll consume.

You can also extend the life of your key fob by using it for the functions that you require. You can also reduce battery life by reducing how long you use the buttons. Hold the LOCK and UNLOCK buttons at the same time. replacement lexus key for the key will flash four times to indicate that your key fob has entered battery-saving mode. Press any button on the key fob once the lights have stopped flashing to bring it back in good working order. Visit our service center in Manhasset to find out more about how to optimize the performance of your Lexus key fob.

Immobilizer System

When you insert your key into the ignition, it transmits an ID code to a device inside the car. The computer will allow the engine to start if the ID code is similar to an earlier one stored in the car. If the ID code doesn't match, an immobilizer is triggered that prevents the car from getting started.

This technology can be used even if your keys get stolen but it's not foolproof. It is possible to "hack" or alter the anti-theft radio wave system. The thief could use an aerial antenna and alter the signal to inform that the car has the key in the ignition.

To avoid this, experts are working on more secure systems. Some systems offer WiFi connectivity un-detectable installations, as well as pin code entry through dashboard buttons. Thatcham Research has developed a method of grading and approval to assist buyers in comparing products.

If you're concerned about the anti-theft device in your vehicle, replacing the battery is the easiest option. You can find the correct replacement by checking the owner's guide. Fuses can also be a problem, so you should make sure you check them on a regular basis. The replacement is available at the auto parts store in case one blows.

Key Blade

Your Lexus key includes a metal emergency key blade that can open the lock cylinders of the doors of your vehicle and also the ignition. The key fob also has hardware that provides communication with your car's Smart Access system and push-button start. Although your key fob is designed to last a long duration, regular use and exposure to elements of the weather could cause it to fail earlier than you think. To prevent this from happening we recommend that you store your key fob in a safe place away from your vehicle as far as you can, to stop its proximity sensors from continuously connecting and draining battery power.

If the battery of your key fob does go out, we're here to help. We'll walk you through the easy process of replacing the battery as well as provide tips to help you avoid the hassle altogether!

CLK Supplies, LLC provides high-end Toyota Lexus blank keys. You can locate the exact replacement you require during your next shopping trip to our Holmdel dealership. We'll cut the new key blade for you before it ships when you order during checkout!

Digital Key

One of the coolest features of a Lexus key is its digital key, which lets you to lock the car, unlock it and start the engine with one touch on your smartphone. This feature allows you to lower your windows or the moonroof. However, you must first talk to a technician and have this feature enabled.





You can also utilize the digital key to share access with your family and friends, particularly when you're planning to leave your car at home as you travel. To do this, press and hold the lock symbol on your key fob while tapping the lock icon on your phone. Your Lexus will then display an "Unlock" message.

Pressing the lock and unlock button on your key fob at the same time will activate the battery-saving mode if you are leaving your car. Press the lock button to reactivate the vehicle. Make sure you don't place your key fob within three feet of appliances that produce magnetic field. This will prolong the battery's life. This includes laptops, TVs as well as cell phones and battery chargers. CLK Supplies, LLC in Manhasset offers top quality Toyota Lexus blank keys. These key blanks are made of high-quality materials and are backed by a manufacturer's warranty.