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 discover a problem that may seem insignificant but that rather quickly turns out to be frustrating if it is not repaired. In truth, we are going to support you to know how to replace my Volkswagen Jetta card battery? The advantage of cards is that they work hands-free, but with no 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 Volkswagen Jetta?, and, finally, which is the battery that corresponds to the card of your Volkswagen Jetta.


How does the key card of your Volkswagen Jetta work?

Before we explain how to replace the batteries in your Volkswagen Jetta hands-free card, we will fairly quickly describe how it works and the benefits it will provide you. Who hasn’t had trouble finding their car keys in their bag or pocket? For a few years now, car makers have been looking into this difficulty. With the advent of new wireless solutions, key problems will fairly quickly become a thing of the past! We are going to reveal 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 car and on the card so that both can intercommunicate.
  • It allows you to open the Volkswagen Jetta 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 locking mechanism with the support 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 Volkswagen Jetta if you run out of battery power.

How do I change the card battery of my Volkswagen Jetta?

We will in this part go forward to the part that interests you the most in this content, how to replace the key card battery of an Volkswagen Jetta? Effectively this wireless technology necessitates energy to work. When the batteries of your card are flat you will not be able to wireless open the doors of your car, but with the help of the integrated physical key you can do it manually. Regarding 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 Volkswagen Jetta:

  • 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 thin object to take off the flat 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 automatically, on others you will have to press the button 4 times to reactivate it.
  • Which type of battery to buy for the card of my Volkswagen Jetta?

    At last, to end our article content we will support you to select the card battery type of your Volkswagen Jetta. They all look very equivalent and it is not always easy to select the suitable one. It is a button size 3V Lithium CR battery, regarding the number of the battery according to the year of your Volkswagen Jetta, it can be either the 2016, the 2032 or the 1620.

    If you wish more guides on the Volkswagen Jetta, go to our Volkswagen Jetta category.