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The 10 Most Terrifying Things About Car Key Fob Repair
Car Key Fob Repairs

Key fobs today do a lot more than unlock and start vehicles. This extra complexity can cause costly repair costs when it fails.

It's a good idea 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 allow your fob to function again.

Battery Replacement

The most frequent reason a key fob stops working is due to the battery being dead. It's a simple fix, and it's worth a try before you decide to spend money on a new key fob. Take your car to an hardware or auto parts retailer that sells button cells and choose a replacement. You can also check your owner's manual (or in the event that you don't have one, YouTube is full of videos of people who explain how to do it) for specific instructions on opening and replacing the battery in the specific type of fob you have.

Most fobs have two halves that snap together -You'll need to pull the sides apart to get to the battery. You'll typically need a small screwdriver or another tool that has a flat, thin blade. It may be helpful to look for a groove along the lower edge of the fob that you can put your tool in between. You may also want to watch out for small pieces that might break loose while working.

Insert the new battery the same way you removed the previous one. The positive (+) side should be facing the buttons and the negative (-) the marks on the battery compartment.

Test the fob to see if it works by pushing a button. If it isn't working, there could be a problem in your car that needs to be repaired or replaced by a professional.

Some key fobs require special tools to open and close them, and the contacts inside can be fragile and easily corroded. In these cases, the best option is to talk to a expert or a dealer. When replacing a battery, be patient and follow your owner's guide. You might be able find a similar battery at a discounter or big-box retailer, but you'll need to consult your owner's manual to be sure that it's compatible with your vehicle.

Replace Read the Full Report include an actual mechanical key, but it's hidden inside the fob to prevent thieves. If the battery inside a fob dies it will leave a blank key left behind, which can be used to open trunks and doors. In certain cases the key could 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. The majority of modern fobs utilize flat watches-style batteries that are easy to find at hardware stores and auto parts shops. Choosing the right type of battery is important however. A bad battery can cause damage to the circuitry and cause the fob's failure earlier.


If you try replacing the battery and find the issue persists it could be an indication that something else is wrong with your car. If you have an owner's guide and you're not sure, try to determine if you can use a reset procedure to restore the fob's original programming. If this doesn't help you'll have to visit a dealership or an independent shop that specializes in vehicle security systems and fob programming.

Fobs may also malfunction due to malfunctioning transmitter receivers. They are typically placed on the dashboard or near the steering wheel, and they send signals that allow you to unlock and start your car with the fob. It is possible that you will need to get closer to the car in order to get it to work.

It may be necessary for a professional to open the case of the fob in order to replace the transmitter. A simple screwdriver is enough to get the job done however some fobs come with complicated release mechanisms that require a special tool or specialized equipment available only at a dealer. It's best to have a qualified mechanic handle this job to ensure you don't damage the fob or injure yourself.

Reprogramming the Key

A key fob that is not functioning simply requires a new battery. Because these batteries are cheap and readily available at pharmacies and home improvement stores, it's an excellent first step prior to buying the purchase of a new car key fob.

Alternately, you might be able to program the fob by following a few basic steps. This process can vary between vehicles, so it is recommended to read the owner's manual and research the model you have. One key fob might require that the ignition be turned on while programming. One key fob could require the key to be inserted several times.

The general process is simple. Make sure Read the Full Report is securely in place. Then, sit in the driver's seat and shut all doors, excluding the driver's side door. This will ensure that the new key fob can communicate with the vehicle properly. Then, put the old key back into the ignition and turn it on to the ON position, but do not start the engine. Next press the lock button on the fob while aiming it at the transmission receiver, which is typically located in the front of the vehicle above the mirror. The key will inform the vehicle within a short amount of time that it's being programmed. This can be done by turning off the door locks, or emitting an audible chime. This is a difficult procedure, so pay attention to the timing and don't press too hard the button.

If the key fob won't function after reprogramming, you can try replacing the batteries. If the issue isn't resolved then a visit to the dealer of your vehicle or a locksmith should be considered. A professional locksmith will have the tools and equipment required to reprogram your car fob or create a new one if necessary.

Genesky claims he is able to program newer fobs that range between $200 and $250, based on the model of vehicle. However, he's had to refuse customers with European models due to the fact that he doesn't have the expensive equipment required. Fortunately, most aftermarket fobs can be programmed however it's best to talk to the dealer of your choice first to determine what the cost is.

How to get a new fob

If your key fob can't be repaired, you may have to purchase another one. Based on the make and model, the dealer or an auto locksmith may be able to help. The dealership will likely be the most expensive option for a replacement fob However, they'll have all of the necessary tools and software to programme your vehicle properly. Many locksmiths in independent shops offer a new car key fob for the lower cost.

Before you rush to get a new fob, it is a good idea to try resetting your current device. Your owner's manual should outline the proper procedure for reset, which is usually just the pushing of a button that restores the factory settings.

It's an excellent idea to check your owner's manual as well as warranty information before you decide which place to go for the replacement of your key fob. If your car is under warranty or you have a car-insurance policy or auto club membership that provides bumper-to-bumper insurance, you might be eligible for reimbursement for the cost of a new fob.

The process of getting a fob can be simple enough, but finding the right location to get it done isn't easy. You might want to visit the dealer for this service if you are driving a brand new car and are looking to feel secure knowing that your key fobs work correctly. If you're looking for a more affordable option, it is often possible to find an independent locksmith who can offer the same services for a lower cost.

A locksmith who is professional is a great choice if you're not comfortable doing this type of work. They are equipped and trained to change or reprogram keys for cars of all kinds and can do it quickly. A locksmith can also come to your office or home which is convenient for a lot of people. They can also cut and program keys on site if you've lost keys. This is perfect for those who do not want to leave their vehicle without a key.

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