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Car Key Fob Repairs

Key fobs today do a lot more than unlock and start cars. However, that added complexity can cause costly repairs when one of them fails.

It's good to know that the majority of fobs are powered by flat-watch-style batteries which can be easily replaced at home. It is possible that a simple reset can bring your fob back to life.

Battery Replacement

A dead battery is the most common cause of the fob's key not working. This is a simple fix, and it's worth trying before you go spending money on a new key fob. You can pick up an additional button cell battery at a local auto part store or hardware retailer in the event that you already have one. You can also refer to the owner's manual (or YouTube for videos explaining how to replace the battery) to find specific instructions on how to open and replace the battery inside your fob.

The majority of fobs have two halves that snap togetheryou'll have to gently pull the sides apart to get to the battery. You'll need a small flat-bladed screwdriver or another tool with a small blade. It may be helpful to look for a notch on the bottom of the fob that you can use to place your tool between. You may also want to look out for small pieces that might break loose while working.

Once you have the new battery, place it in the same way that you removed the old one. The positive (+) side should be facing the buttons and the negative (-) the markings on the battery compartment.

You can push a button to test the fob. If it doesn't, you might have a problem with your car that requires a professional to fix or replace.

Some key fobs are difficult to open and the contacts may be brittle and easily corrosion-prone. In these instances the best choice is to speak with a expert or a dealer. When replacing a battery, be gentle and follow your owner's instructions. You might be able to find an identical battery in a big-box store or discounter, however, make sure to check the owner's manual to ensure it's compatible with your car.

Replace the internal key

To guard against theft, many key fobs come with an internal mechanical key that is hidden within. When the battery in the fob goes out it will leave a blank key left behind, which can be used to open doors and trunks. In certain cases, this key can even start certain cars. Most people do not realize that they can avoid a trip to the dealership by replacing the fob batteries. The flat watch-style battery is found in most modern fobs. They can be found in hardware stores and auto parts stores. Choosing the right type of battery is important however. The wrong kind can damage the electronic circuitry and cause the fob to fail much sooner.

If mobile car key repair replace the battery, and the problem persists it could be an indication that something else is going on with your car. If you have an owner's manual look for there is a reset option available to restore the fob's original programming. If this doesn't work, you'll have go to a dealer or a shop independent that specializes in vehicle-security systems and key fob programming.





Fobs may also malfunction due to faulty transmitter receivers. They are usually found 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 need to get closer to the car to make it work.

It could be required for a professional to open the case of the fob in order to replace the transmitter. A simple screwdriver will usually work, however certain fobs require a specific tool or a special piece of equipment that can only be found at a dealer. It is a good idea to have a qualified mechanic handle this job to ensure you don't accidentally break the fob or hurt yourself.

Reprogramming the Key

A key fob that is not working could just require a new battery. Since these batteries are inexpensive and easily available at pharmacies and home improvement stores, this is the ideal first step before investing in the purchase of a new car key fob.

You can also change the programming of your key fob on your own by following the steps below. The procedure may differ for different automobiles, so consult your owner's guide and study the specific model of your vehicle. For example one key fob could require the ignition to be turned on while reprogramming it. Another may require the key to be inserted and removed repeatedly.

The general procedure is very simple. Make sure the battery is securely in place. Close all doors, with the exception of the driver's door. This will ensure that the new key is communicating with the vehicle in a correct manner. Then, put the old key back into the ignition and turn it to the ON position, but do not start the engine. Next, press the lock button on the fob while looking at the transmission receiver, which is typically located on the front of the vehicle 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 by emitting an audible chime. This procedure can be difficult, so it's important to pay attention to the timing and don't over-press the key button.

If the key fob does not work after reprogramming, try using a new battery. If the issue isn't resolved then a visit to your car dealer or locksmiths should be considered. A professional will have the tools and programming equipment to reprogram your car's fob, or create a new key if it's required.

Genesky says he's able to program newer fobs at around $200-$250, depending on the model of vehicle. But he's had to refuse customers with European models due to the fact that they don't have the costly equipment they require. Most aftermarket fobs can be programmed, but always inquire with your local dealer to determine the cost.

Finding a New Fob

If the key fob you have cannot be repaired, you might need to buy another one. Depending on the brand and model, the dealership or an auto locksmith may be able to assist. The dealership is likely to be the most expensive choice for a replacement fob, but it also has the tools and software necessary to program your car correctly. If you're looking for a cheaper solution, a variety of locksmiths can offer you new car keys for a much more reasonable cost.

It is a good thing to attempt to reset your current fob before you rush out to buy another one. The owner's manual should explain the proper reset procedure, which is usually just a series of button pushes which restores the factory settings.

It's recommended to read your owner's manual and warranty information prior to deciding which place to go for the replacement of your key fob. If your car's warranty still active or you have an auto club or car insurance policy that covers bumper-to-bumper you could be eligible for a reimbursement on the cost of a replacement fob.

Finding the best location to purchase the fob you need can be difficult. If you have a relatively new car and would like the peace of mind that comes from knowing that your key fobs are in good working condition, you may be better off visiting the dealership for this service. If you are seeking a less expensive alternative, it is possible to find a locksmith that will offer the same service for less cost.

If you aren't comfortable handling this type of work on your own, a professional locksmith may be a great option. They are equipped and trained to change or reprogram car key fobs of all kinds and can do it quickly. Locksmiths can also come to your office or home, which is convenient for many people. They can even cut and program keys on-site in case you've lost keys, which is ideal for those who don't like to leave their cars in the dark.