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Car Key Fob Repairs

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

The positive side is that many fobs have flat-watch-style batteries that are simple to replace at home. It is possible that a reset can make your device work again.

Battery Replacement

A dead battery is the main reason for a key fob not working. It's a simple fix, and it's worth trying before you decide to spend money on a new key fob. You can pick up the new button cell at your local auto part retailer or hardware store in the event that you already have one. You can also consult your owner's manual (or, if you don't have one, YouTube is full of videos of people who explain how to do it) for specific instructions for opening and replacing the battery in your particular type of fob.

The majority of fobs have two halves that snap togetheryou'll have to gently break the sides to access the battery. You'll need a small, flat-bladed screwdriver or another tool with a blade that is thin. It might help to look for a notch on the bottom of the fob which you can place your tool between. You may also want to keep an eye for tiny pieces that could break loose while you work.

Once you have the new battery, you can insert it in the same manner that you removed the old one. The positive (+) side should face the buttons and the negative (-) the marks on the compartment for the battery.

Test the fob to see if it works by pushing the button. If it doesn't work, there could be an issue 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 cases the best solution is to consult a car specialist or a dealer. When replacing a battery be patient and follow your owner's manual. You may be able find the same battery at a big-box store or discounter, but make sure to check your owner's guide to ensure it's compatible with your car.

Replacing the Internal Key

To guard against theft, many key fobs come with a mechanical key hidden inside. When the battery in the fob fails, a blank key is left behind, which can be used to open trunks and doors. In some instances the key could even start certain cars. Many people don't realize this, but they can avoid a trip to the dealership by simply replacing the fob battery. The majority of modern fobs utilize flat watches-style batteries that are easy to find at hardware stores and auto parts shops. The right kind of battery is essential however. The wrong kind can damage the electronic circuitry, causing the fob to fail earlier.

If you change the battery and find the problem persists it could be a sign something else is wrong with your car key fob repair. Check your owner's manual to see if there's a reset procedure that can restore the fob to factory-setup. If this doesn't work you'll have to visit a dealership or an independent shop that specializes in vehicle security systems and fob programming.

Fobs can also malfunction because of faulty transmitter receivers. They are usually found close to the steering wheel or on the dashboard. They transmit signals that enable you to unlock your car and begin it using the fob. You may have to move closer to your car to make it work.

It might be necessary for a professional to remove the case of the fob to replace the transmitter. A simple screwdriver can usually work, however some fobs require a specialized tool or a special piece of equipment that can only be purchased at a dealership. It's best to have a qualified mechanic handle this job to ensure you don't break the fob or injure yourself.

Reprogramming the Key

Often a non-functional key repair fob simply requires 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 a new car key fob.

Alternately, you might be able to program the fob yourself by following the steps. The procedure varies for different vehicle makes, so it's important to consult your owner's manual and research the specifics of your particular model. One key fob might require that the ignition be turned on while programming. One key fob may require the key to be inserted several times.

The general process is simple. Make sure that the battery is securely in place. Close all doors except the driver's door. This will ensure that the new key fob communicates with the vehicle in a proper manner. After that, put the old key back in the ignition and switch it to the ON position, but don't start the engine. Then, press the lock button on the fob, while aiming it at the transmission receiver, which is typically located in the front of the car above the mirror. In a short period of time the key will signal to the vehicle that it's programmed by triggering the doors' locks or emitting a chime. This process can be tricky and it's crucial to pay attention to the timing and to not over-press the key button.

If the key fob does not work after reprogramming, try replacing the batteries. If the issue isn't resolved then a visit to your car dealer or locksmiths should be considered. A professional will have all the tools and equipment required to reprogram your car fob or design a new one, if required.

Genesky says he's able to program newer fobs that range between $200 and $250, based on the vehicle. He's experienced European models rejected because they don't have the equipment required. Luckily, the majority of aftermarket fobs can be programmable but it's always recommended to consult the dealer of your choice first to find out what the cost is.

How do I get a new fob

If your key fob is damaged beyond repair, you could need to get a new one. Depending on the brand and model, the dealer or an auto locksmith may be able to help. The dealership will likely be the most expensive alternative for car key fob repair replacing a fob However, they'll have all of the necessary tools and software needed to program your vehicle correctly. Many locksmiths in independent shops offer a new car key fob for a much lower price.

It's a good idea to try to reset your current device before you make the decision to purchase another one. The owner's manual should outline the correct reset procedure. This is usually a series button presses that reset the factory program.

It is also a good idea to read the owner's manual and warranty information prior to deciding the best place to get the replacement of your key fob. If your car is under warranty, or you have a car-insurance policy or auto club membership with bumper-to-bumper coverage, you may be eligible to receive a reimbursement for the cost of the new fob.

Finding the best place to get a fob can be a challenge. You may want to visit the dealer for this service if have a newer vehicle and you want to be confident that your keyfobs are working correctly. If you're looking for a cheaper alternative, it is possible to find a locksmith that can provide the same service for a lower price.

If you aren't comfortable handling this type of work on your own, a professional locksmith may be a good option. They are certified and equipped to replace or reprogram most types of car key fobs and often they can do it quickly. Additionally, locksmiths is often able to come to your workplace or home to complete the task, which can be very useful for certain people. They can cut and program keys on the spot if you've lost keys. This is perfect for those who do not like to leave their car in the garage.