We are used to accompanying you in the small problems that go with the use of your car. In this article, we are going to discover a problem that may seem unimportant but that promptly turns out to be frustrating if it is not repaired. In fact, we are going to help you to know how to replace my Ford Focus C-max card battery? The benefit of cards is that they work hands-free, but without electric power your card will be ineffective. That’s why, first, we will see how the card functions, then how to replace the battery of the card of your Ford Focus C-max?, and, at last, which is the battery that corresponds to the card of your Ford Focus C-max.

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How does the key card of your Ford Focus C-max work?

Before we teach you how to replace the batteries in your Ford Focus C-max hands-free card, we will fairly quickly explain how it works and the benefits it will offer you. Who hasn’t had difficulty finding their car keys in their bag or pocket? For a few years now, car producers have been looking into this problem. With the advent of new wireless solutions, key problems will fairly quickly become a thing of the history! We are going to present 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 intercommunicate.
  • It enables you to open the Ford Focus C-max simply by passing your hand in front of the door or by pulling the handle when the card is close to your car
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  • There are two types of key card, one that enables 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 Ford Focus C-max if you run out of battery power.

How do I change the card battery of my Ford Focus C-max?

We will now move on to the part that interests you the most in this article content, how to replace the key card battery of an Ford Focus C-max? Effectively this wireless technology needs energy to work. When the batteries of your card are flat you will not be able to wireless open the doors of your motor vehicle, but with the help of the included physical key you can do it physically. Concerning the ignition, all you have to do is insert the card in the slot included 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 Ford Focus C-max:

  • Press the button at the bottom and pull out the emergency key while doing so.
  • You will need to see a tab that will allow you to open the case of your card in half.
  • Use a thin object to take off 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 instantly, 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 Ford Focus C-max?

    Finally, to conclude our article content we will help you to select the card battery type of your Ford Focus C-max. They all look very equivalent and it is not always easy to select the right one. It is a button size 3V Lithium CR battery, concerning the number of the battery according to the year of your Ford Focus C-max, it can be either the 2016, the 2032 or the 1620.

    If you need more guides on the Ford Focus C-max, go to our Ford Focus C-max category.