We have dedicated this website to help you solve the little problems you can face with your car . In this article, we are going to take a look at a problem that may seem minor but that fairly quickly turns out to be frustrating if it is not fixed. In fact, we are going to help you to know how to replace my Lexus RX card battery? The advantage of cards is that they work hands-free, but without power your card will be useless. That’s why, first, we will see how the card works, then how to change the battery of the card of your Lexus RX?, and, finally, which is the battery that matches to the card of your Lexus RX.


How does the key card of your Lexus RX function?

Before we teach you how to change the batteries in your Lexus RX hands-free card, we will promptly explain how it works and the benefits it will provide you. Who hasn’t had difficulties locating their car keys in their bag or pocket? For a few years now, car brands have been looking into this difficulty. With the advent of new wireless solutions, key problems will promptly become a thing of the past! We are going to demonstrate you the features and operation of your car key card now:

  • It uses a wireless technology that emits a frequency of 433 MHz.
  • Receivers/transmitters are present on the motor vehicle and on the card so that both can connect.
  • It allows you to open the Lexus RX simply by passing your hand in front of the door or by pulling the handle when the card is in close proximity to your car
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  • There are two versions of key card, one that allows to open and close like a centralized lock with the help of a press button, and the other one that allows to open without even touching the card.
  • There is a spare key in the card so that you can open the door and start your Lexus RX if you run out of battery power.

How do I change the card battery of my Lexus RX?

We will in this part go forward to the part that interests you the most in this content, how to change the key card battery of an Lexus RX? Effectively this wireless technology requires energy to function. When the batteries of your card are dead you will not be able to wireless open the doors of your motor vehicle, but with the help of the integrated physical key you can do it manually. Concerning the ignition, all you have to do is put the card in the slot provided for this purpose, even without a battery, it has a chip that allows your car to start. We now move on to the procedure for replacing the battery of the card in your Lexus RX:

  • Press the button at the bottom and pull out the emergency key simultaneously.
  • You will need to see a tab that will allow you to open the case of your card in half.
  • Use a slim thing to remove the used battery from the card
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  • Install the new battery in the slot provided.
  • Close the card.
  • On some models it will work immediately, on others you will have to press the button 4 times to reactivate it.
  • Which category of battery to use for the card of my Lexus RX?

    Finally, to finish our short post we will help you to choose the card battery type of your Lexus RX. They all look very equivalent and it is not always easy to choose the suitable one. It is a button size 3V Lithium CR battery, relating to the number of the battery according to the year of your Lexus RX, it can be either the 2016, the 2032 or the 1620.

    Whenever you have any additional questions about the Lexus RX, do not hesitate to consult our Lexus RX category.