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Car Key Fob Repairs

Key fobs today do a lot more than just unlock and start vehicles. This added complexity can cause costly repair costs if it breaks.

It's good to know that a majority of fobs are powered by flat watch-style batteries that can be replaced at home. And you may find that a reset can make your device work again.

Battery Replacement

A dead battery is the most common cause of a key fob that isn't working. It's a simple fix, and it's worth a try before you spend money on a new fob. Simply drive your car to an auto parts store or hardware retailer that carries button cell batteries and purchase a replacement. You can also refer to the owner's manual (or YouTube for videos explaining how to replace the battery) for specific instructions on how to open and replace the battery in your fob.

Most fobs have two halves that snap togetheryou'll have to gently pry the sides apart to get to the battery. You'll need a small, flat-bladed screwdriver, or a different tool with a small blade. It may be helpful to look for a notch along the lower edge of the fob that you can wedge your tool between. You might also want to look for small pieces that may be loosened while working.

When you have your new battery, you can insert it in the same way that you removed the old one. Make sure the positive (+) side is facing upwards toward the buttons and that the negative (-) side of the battery is aligned correctly with the markings inside the battery compartment of your fob.

Push a button to test the fob. If it isn't working, there might be a problem with your vehicle that needs to be fixed or replaced by a specialist.

Certain key fobs require specific tools to open and close them, and the contacts inside can be fragile and susceptible to corroding. In these cases an expert in the field or the dealer will likely be your best option. When replacing a battery be gentle and follow your owner's guide. You may be able to find a similar battery at a discounter or big-box retailer but you'll have to consult your owner's manual to ensure that it's the right one for your vehicle.

Replacing the Internal Key

Most key fobs include an actual mechanical key however, it's hidden within the fob to stop thieves from getting. When the battery in the fob dies it will leave an internal key that is blank that is able to unlock trunks and doors (and in some cases, even start certain cars). The majority of people don't realize they can avoid a trip to the dealership by replacing the fob's batteries. Most modern fobs have flat-watch-style batteries which are easy to find at hardware stores and auto parts shops. Using the correct type of battery is crucial however. The wrong type can damage the circuitry and lead to the fob's failure much sooner.

If the problem persists after you replace the battery, it may be a sign that something else is wrong with your vehicle. If you have an owner's guide and you're not sure, try to determine if a reset procedure is available to restore the fob's factory programming. If this isn't working, you'll need go to a dealer or a shop independent that specializes in security systems for vehicles and key fob programming.

Fobs can also malfunction due to faulty transmitter receivers. These are usually located near the steering wheel or on the dashboard. They transmit signals that allow you to unlock your car and start it with the fob. You may have to move closer to your car to get it to work.

It may be required for a professional to remove the case of the fob in order to replace the transmitter. A simple screwdriver can usually work, however some fobs require a specialized tool or special equipment that can only be purchased at a dealership. This task must be handled by a certified mechanic to ensure that the fob is not damaged and yourself.

Reprogramming the Key

Often a non-functional key fob simply needs a fresh battery. key repair for car are easily available in home improvement and pharmacy stores and are inexpensive. This is a great option to begin before purchasing the new key fob.

You can also re-program your key fob on your own If you follow a few basic steps. The process is different for different vehicles brands, so it's essential to refer to the owner's manual as well as research the specifics of your model. A key fob may require that the ignition be switched on when reprogramming. A key fob might require the key to be inserted several times.

The basic procedure is easy. First, ensure that the new battery is firmly in place. Close all doors, except the driver's door. This will ensure that the new key is communicating with the vehicle properly. Then, put the old key back in the ignition and turn it to the ON position, but do not start the engine. Press the lock button while aiming the fob at the transmission receiver. This is typically located on the front above the mirror. Within a short time frame, the key will indicate to the vehicle that it's been programmed by turning off the doors' locks or emitting a chime. This is a difficult process, so pay attention to timing and don't over-press the button.

If the key fob doesn't work after reprogramming, try using new batteries. If the problem persists then a visit to your car dealer or a locksmith should be considered. A professional will have the tools and equipment needed to reprogram your car's fob or clone an entirely new key if needed.

Genesky claims he is able to program newer fobs that range between $200 and $250, depending on the vehicle. However, he's had to refuse customers with European models due to the fact that they don't have the costly equipment they require. Fortunately, most aftermarket fobs can be programmed but it's always best to check with a car dealer first to determine what their price is.

A New Fob

If the key fob you have cannot be repaired, you may need to buy another one. Depending on your vehicle's model and make, an auto locksmith or a dealership might be able to assist. The dealership is likely to be the most expensive option for a replacement fob, but it will also have the tools and software necessary to program your car properly. If you're looking for a cheaper solution, many independent locksmiths can provide you with new car keys for a more affordable cost.

Before you rush to get a new key fob, it is an excellent idea to try resetting your current device. The owner's guide should explain the correct reset procedure. This is usually an orderly press which restores the factory settings.

It is also recommended to check your owner's guide and warranty information to determine whether you can obtain a replacement key fob. If your car is still under warranty or you have a car-insurance policy or auto club membership with bumper-to-bumper protection, you may be eligible to receive a reimbursement for the cost of a new fob.


Finding the right place to get a fob can be a challenge. You may want to go to the dealer for this service if have a newer vehicle and you want peace of mind knowing that your keyfobs are working correctly. If you're looking for an option that is more affordable it is usually possible to find an independent locksmith who can provide the same service for a significantly lower price.

A locksmith professional is a good option if you're not comfortable doing this kind of work. They are trained and equipped to repair or replace all kinds of car key fobs and often they can accomplish the task in a short time. A locksmith can also come to your house or office, which is convenient for many people. They can also cut and program keys on site if you've lost keys. This is perfect for those who do not like to leave their car in the garage.

Member since: Sunday, November 3, 2024

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