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What to Do When Your Volkswagen Car Key Fob Needs a New Battery

The key fob on your Volkswagen is vital to locking, unlocking and starting the vehicle. But it can also be damaged, and even a minor problem can leave you without access to important features.

This comprehensive guide will take you through opening, diagnosing and repairing your Volkswagen key fob at home.

Battery

Modern electronic key fobs offer more functionality and are more convenient than the manual key. However, like any device that relies on an electrical circuit for operation it, they will eventually wear out or lose power and will need to be replaced. The most common signs that your VW key fob is in need of replacement batteries include an intermittent or ineffective lock/unlock function that isn't working, a slow response time when pressing buttons, or a complete inability to start the vehicle. It's easy and inexpensive to replace the battery on your Volkswagen car key fob.

Volkswagen key fobs are made to be compatible with the CR2032 button-style 3-volt battery. These batteries are sold in most hardware stores, supermarkets, and online retailers. Wrap a small piece of tape around the screwdriver's flat-head to prevent damage or scratches. This will prevent the blades of the screwdriver from coming into contact the internal components within your fob, and it will also shield your fob from the oily residue that your hands produce -- which can shorten the life of a battery due to corrosion of its terminals.

After you've wrapped your screwdriver find the seam that connects the lid and base of your Volkswagen key fob. Start by creating a space using your fingers. Then you can use the flat-head screws to gently pull the pieces apart. Continue to be gentle, so you don't break your fob. After you've successfully pry the halves of your VW key fob apart take out the old battery and replace it in its place with its positive side facing downwards. After the new battery is in place close the remote case by pressing both halves again.

A new battery for your Volkswagen key fob will provide you with full functionality, allowing you unlock and start your vehicle from a distance without having to turn your ignition. In some instances, your Volkswagen may require fob programming to activate all of its features and to recognize newly installed batteries. This service is offered by a reputable VW dealer, but you can prepare your vehicle for programming ahead of time.

Buttons

A key fob will provide the safety and convenience for your replacing volkswagen key vehicle. It lets you unlock and lock the doors and start your car and control a variety of features with the push of one button. However, just like any electronic device the VW key fob may experience problems from time to the time. Most of the time these are minor issues you can fix yourself without contacting a dealer.

The first thing to do when your key fob starts experiencing issues is to replace the battery. This can be done with several tools, including an flathead screwdriver and replacement CR2032 battery. To prevent damaging the internal components of the device, make sure to wrap your screwdriver in a strip of tape prior to starting.

The next step is to remove the housing of the fob. Find the seam between the base and lid of the fob, and then use a flathead screwdriver to separate the two parts of the key fob. You will be able to see the battery as well as the circuit board and the buttons after you have opened the housing.

Some Volkswagen key fobs include remote start features that allows you to warm up or cool down your car before you get inside. The remote start feature transmits a signal to the computer onboard your car from your Volkswagen keyfob, instructing it to turn on the engine. This feature can also be used to heat or cool the interior of your car when you park it in hot weather.

A dead battery is the most likely reason for a problem with the remote start function of your VW key fob. To fix this, simply replace the battery on your Volkswagen key fob.

Volkswagen produced 13 distinct key profiles in the 1950s through the 1970s. Each profile had an unique code consisting of two letters that corresponded to the lock of that particular. The keys also had the small, metal VW logo that was stamped into the key or the cap of the key's cylinder.

Programming

Volkswagen key fobs work with advanced circuitry, sensors and transmitters to communicate with the vehicle. When you press buttons such as unlock and lock the VW key fob signalizes the car to respond. The car will then verify that your specific fob is within a specific range before allowing the buttons to work. Modern VWs with keyless entry and remote start use a technology called KESSY to accomplish this, and special programming ensures that your car's internal systems are synchronized with the key fob.

Whether your Volkswagen's key fob needs a new battery or is lost or stolen, it is essential to be reprogrammed in the car so that other fobs won't work, and the stolen one does not start the car in case it is discovered. This can be done at a dealership or by using a tool known as VCDS (Volkswagen Car Diagnostic System). Many VW automobiles are equipped with a feature which allows the car to function without a key fob at all. Instead, the car is powered inductively by the engine.

If you have a Volkswagen with this feature, then you can utilize the Volkswagen app by placing your keyfob in proximity to the sensor ring on the steering column. This will enable the FOB to transmit its unique ID number as well as to power a chip within the steering wheel, which will authorize the key to start the car. This method will only work if both the key fob and sensor ring are working.

If your car doesn't start after applying this method, you have a problem that you aren't able to solve on your own. You'll need to bring the key you wish to replace, the key code and evidence of ownership to the locksmith volkswagen keys or dealer who can assist you. It may take a while but it's well worth it to get your Volkswagen back on the road as soon as possible.

Unlocking

A key fob is extremely useful in locking and unlocking your vehicle, but it can also be useful for many other features, too. You can also use it to start your car from a distance. Your Volkswagen key fob can become unresponsive for a variety of reasons.

The primary reason the primary reason your VW key fob might not be working is that it is powered by an inactive battery. You can easily test this by pressing one of the buttons on your key fob and seeing if an indicator light lights up. If the battery doesn't illuminate, it's probably dead and needs to be replaced.

Re-programming your Volkswagen key fob could be the cause why it is not responding. You can do this at the dealer, however there are also many videos on YouTube that demonstrate how to do this yourself. This process will ensure that the internal systems in your vehicle are seamlessly synchronized with your Volkswagen key fob. Once this process is completed, the key fob will be able respond to your commands.

Your Volkswagen might be equipped with KESSY technology if it's an older model. It differs from RKE and RKE, since it does not have the key blade that flips out. Press the button on your key fob to activate the emergency key. This is typically a small key loop that extends out from the top of the fob. The emergency key will poke through and you can use it to open your doors. This will not permit you to start your car.

These easy steps will allow you to repair and diagnose your Volkswagen key fob without having to visit an auto dealer. If you need to replace your VW part, be sure to take a look at our VW parts specials that are available at Stohlman Volkswagen in Vienna. You can often save big on the parts you need! We look forward to helping you with all your automotive requirements.