How to Replace a Volkswagen Key Fob Battery​

A working key fob is something that all new Volkswagen owners will need. From opening your car doors to easily turning over the engine, the key fob is there to be handy and effective. But as with any battery-powered device, it will eventually require a new battery so that it will function properly. This article will take you through step-by-step how to replace a Volkswagen key fob battery, provide you with general replacement guides, and tell you when professional help may be necessary.

How to Know You Need to Replace Your Key Fob Battery 

Your Volkswagen key fob will often give you a range of indications when its battery is low. One of the most notable signs is limited functionality. For instance, you may be required to press a number of buttons before they work, or the range of the fob can decrease quite a bit. Your vehicle also can provide a message on the dashboard, e.g., "Key fob battery low." And if your keyless entry system goes in and out occasionally but works nearer to the vehicle, then it's time to replace a VW key fob battery.

Step-by-Step Instructions to Replace the Battery 

It's easier to replace a Volkswagen key fob battery than it seems.

Step 1: Check the Type of Battery 

The majority of Volkswagen key fobs use a CR2032 coin battery, but it's always best to check this in your car manual or by examining an existing battery before purchasing.

Step 2: Open the Key Fob 

To open the battery compartment, find the seam on your key fob. Most Volkswagen vehicles have a small notch that serves as a key to split the two parts of the fob. Insert a flat-head screwdriver or the emergency key into the notch and rotate it slowly. The fob should open quite easily without too much pressure, exposing the inner components.

Step 3: Replace the Battery 

After opening, carefully take out the old battery using your fingers or a small device. Avoid damaging any surrounding parts. Place the new battery with the positive (+) end upwards. Make sure it is firmly seated to prevent any shift during reassembly. If you're unsure, refer to a Volkswagen key fob battery replacement video guide for extra help.

Step 4: Reassemble the Key Fob 

Align both halves of the key fob and push them together until they click. Ensure there are no gaps between the two sides. Once closed, test the key fob to ensure the new battery functions as expected.

When to Call a Professional 

Though changing a battery in a VW key fob is a simple task, at times a professional may be required. If the problem cannot be fixed by simply changing the battery, then maybe there is an internal problem with the fob that requires a professional to fix. A few Volkswagen models also come with complex designs that are hard to open or disassemble without the right tools. 

A visit to the VW dealer or a certified car locksmith will fix or replace your key fob without sustaining further damage. If you're in the area, a trusted VW mechanic in Peoria, AZ, can help with reprogramming or any additional issues that may arise.

Keep Your VW Key Fob at its Best 

An operating key fob is required to make the most of your Volkswagen's convenience. Having low battery alerts and this simple replacement guide, you can keep your key fob in top working order and reduce frustrating downtime. But do not forget to have a professional lead as needed. 

Remember this trick, and your key fob will be a loyal servant for years to come.