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Car Key Fob Repairs

Today's key fobs do a lot more than unlock and start cars. However, the added complexity could cause costly repairs if one of them breaks.

It's good to know that the majority of fobs are powered by flat-watch-style batteries which can be easily replaced at home. You might find that a simple reset is enough to make your fob work again.

Battery Replacement

The most frequent reason the key fob ceases to function is due to an inoperative battery. It's a simple fix, and it's worth trying before you spend money on a new key fob. Simply take your car to an auto parts store or hardware retailer that carries button cell batteries and pick up a replacement. You can also consult the owner's manual (or in the event that you don't have one, YouTube is full of videos from people who show you how to do it) for specific instructions for opening and replacing the battery in the specific type of fob you have.

Most fobs have two halves that snap togetherYou'll need to pry the sides apart to get to the battery. You'll typically need a small screwdriver or a different tool that has a flat, thin blade. It's a good idea to look for a notch on the lower edge of the fob that you can place your tool between. You might also want to look out for small pieces that may come loose while you work.

Insert the new battery the same way as you removed the previous one. Make sure the positive (+) side is facing upwards towards the buttons and that the negative (-) side of the battery is aligned with the markings inside the battery compartment of your fob.

You can push a button to test the fob. If it doesn't, you may have an issue with your vehicle that requires a professional to fix or replace.

Certain key fobs are difficult to open, and the contacts may be brittle and easily damaged. In these situations the best choice is to speak with a specialist or dealer. When replacing a battery be patient and follow your owner's guide. You may be able find the same battery at a big-box store or discounter, however, make sure you read the owner's manual to ensure that it's compatible with your vehicle.

Replace the internal key

To prevent theft, most key fobs have an internal mechanical key that is hidden within. When the battery in the fob dies, it leaves an internal key that is blank that can unlock doors and trunks (and in some cases, even start certain cars). Most people aren't aware of this however they could avoid having to go to the dealership by simply replacing the fob battery. The majority of modern fobs utilize flat watches-style batteries that can be found in hardware stores and auto parts shops. It is essential to choose the correct type of battery. A wrong type of battery can harm the electronic circuitry, which can cause the fob to fail much sooner.

If the problem persists after you replace the battery, it may be a sign that something else is going on with your vehicle. If you have an owner's guide and you're not sure, try to determine if there is a reset option available to restore the fob's original programming. If this fails, you'll need go to a dealer or an independent shop that specializes in vehicle-security systems and key fob programming.

Fobs could also fail due to faulty transmitter receivers. They are typically located on the dashboard or next to the steering wheel, and transmit signals that allow you to open and start your car using the fob. If you're being required to get closer and closer to your vehicle to get it to work, there's a good chance the transmitter is failing.

It might be necessary for a professional to access the case of the fob to replace the transmitter. A simple screwdriver can usually accomplish the task however some fobs come with complicated release mechanisms that require a specialized tool or specialized equipment that is available only at a dealer. It is a good idea to have a certified mechanic perform this task so you don't damage the fob or hurt yourself.

Reprogramming the Key

Most of the time, a key fob that isn't working simply needs a fresh battery. These batteries are easily found in pharmacy and home improvement stores and are cheap. This is a good method to start before you purchase an entirely new key fob.

You can also change the programming of your key fob on your own If you follow the steps below. This process varies between vehicle makes, so it's important to consult your owner's manual and research the specifics of your particular model. For example the key fob might require that the ignition be turned on while reprogramming it. Another might need the key to be inserted and removed several times.

The procedure is easy. Make sure that the battery is securely in place. Close all doors, with the exception of the driver's door. This will ensure that the new key fob is communicating with the vehicle in a proper manner. Insert the old key into the ignition and turn it ON, but don't start the engine. Press the lock button while aiming the fob towards the transmission receiver. This is typically located on the left side, just above the mirror. The key will inform the vehicle within a short amount of time that it is being programmed. This can be done by turning off the door locks, or emitting an audible chime. This can be a tricky process, so pay close attention to timing and don't over-press the button.

If the key fob doesn't work after reprogramming it, try replacing the batteries. If the issue persists, a visit to your dealer for your car or locksmiths should be considered. A professional locksmith will have the tools and equipment required to reprogram the car fob or create a new one if necessary.

Genesky says he's able to program newer fobs for $200-$250, based on the car. However, he's had the need to refuse customers with European models because there's no equipment required. A majority of the aftermarket fobs are programmed, but always inquire with your local car remote key repair dealer to determine the cost.

How do I get a brand new fob

If your key fob is beyond repair, you may need to get an entirely new one. Depending on the make and model, an auto locksmith or dealership may be able to help. The dealership is likely to be the most expensive choice for a replacement fob, but it will also have the tools and software necessary to program your car correctly. If you're looking for a cheaper option, a number of independent locksmiths can offer you a brand-new car key fob at a lower price.

Before you decide to purchase a new fob, it is a good idea to try resetting your current one. The owner's manual should explain the proper reset procedure, which is usually just a series of button pushes that restores the original programming.

It is also a good idea to review your owner's manual as well as warranty information before deciding which place to go for an replacement fob for your key. If your car is still under warranty or you have a car key Fob repair-insurance policy or auto club membership that provides bumper-to-bumper coverage, you may be able to receive some reimbursement for the cost of an entirely new fob.

Finding a fob is simple enough, but finding the right location to do it can be a challenge. You may want to visit the dealer for this service if you have a newer car and you want to be confident that your key fobs work correctly. However, if you're looking for an option that is more affordable it is possible to find a locksmith independent who can provide the same service for a significantly lower price.

If you're not confident handling this kind of work yourself, a professional locksmith can be a good option. They are trained and equipped to replace or reprogram all kinds of car key fobs and they can often accomplish the task in a short time. Additionally, locksmiths can often come to your home or office to complete the task, which can be very useful for certain people. They can even cut and program keys on-site when you've lost keys, which is great for those who do not want to leave their cars unattended.