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Car Key Fob Repairs

Key fobs today do much more than simply unlock and start vehicles. However, that added complexity can result in high repair bills in the event that one of them malfunctions.

The good news is that most fobs have flat-watch-style batteries that are easy to replace at home. And you may find that a reset can make your device work again.

Battery Replacement

A dead battery is the most common reason for a key fob that isn't working. This is easy to repair, and is worth a try before you spend money on a new fob. Simply drive your car to a local auto parts store or hardware retailer that carries button cells and choose the replacement. You can also consult your owner's manual (or in the event that you don't have one, YouTube is full of videos from people explaining how to do it) for specific instructions on opening and replacing the battery on the particular type of fob.

Most fobs have two halves that snap togetherYou'll need to pull the sides apart to get to the battery. You'll need a small, flat-bladed screwdriver, or a different tool with a small blade. You can insert your tool into a slot on the bottom of the key fob. You may also want to watch for tiny pieces that could break loose as you work.

Insert the new battery in the same way as you removed the old one. Make sure that 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.

Press a button to test the fob. If it doesn't work, you may have an issue with your car that requires a specialist to repair or replace.





Some key fobs require special tools to open, and the contacts inside may be delicate and easily corroded. In these instances an expert in the field or the dealer will likely be the best option. When replacing a battery be gentle and follow the owner's instructions. You might be able find a similar battery at a discounter store or a big-box retailer, but you'll need to consult your owner's manual to ensure that it's the right one for your vehicle.

Replace the internal key

To prevent theft, most key fobs have an internal mechanical key that is hidden within. When the fob battery dies it will leave an internal key that is blank that can unlock doors and trunks (and in some cases, even start certain vehicles). A majority of people don't realize that they can avoid a trip to the dealership by replacing the fob batteries. The flat watch-style battery is found in the majority of modern fobs. These batteries are easily located at hardware and auto parts stores. It is crucial to choose the correct type of battery. A bad battery can cause damage to the circuitry and cause the fob's failure earlier.

If you try replacing the battery, and the problem persists, it could be an indication that something else is wrong with your car. If you have an owner's manual and you're not sure, try to determine if there is a reset option available to restore the fob's factory programming. If G28CarKeys fails, you'll need go to a dealer or independent shop that specializes vehicle-security systems and key fob programming.

Fobs may also malfunction because of faulty transmitter receivers. These are usually located close to the steering wheel, or in the dashboard. They transmit signals to allow you to unlock your vehicle and start it using the fob. If you notice that you're having to get closer and closer to your vehicle in order to make it work, there's a great chance that the transmitter isn't working.

A professional might need to open the fob's case to replace the transmitter. A simple screwdriver can usually work, however certain fobs require a specific tool or a special piece of equipment which can only be found at a dealership. It's a good idea to have a certified mechanic handle this job to ensure you don't damage the fob or hurt yourself.

Reprogramming the Key

A key fob that's not working could just require a new battery. Because they are cheap and readily available in pharmacies and home improvement stores, this is a good first step before purchasing an entirely new car key fob.

Alternatively, you may be able to re-program the fob on your own by following the steps. This process can vary between automobiles, so consult your owner's guide and research your specific model. A key fob may require the ignition to be switched on when programming. One key fob may require the key to be inserted multiple times.

The basic procedure is simple. Make sure that the battery is securely in place. Close all doors, with the exception of the driver's door. This will ensure the new fob is communicating with the vehicle in a correct manner. Insert the old key into the ignition, turn it on however, don't start the engine. Press the lock button while aiming the fob toward 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 programmed by turning off the doors' locks or emitting an emitted sound. This can be a difficult process and it's crucial to pay attention to the timing and don't over-press the key button.

If the key fob does not work, try reprogramming it again with fresh batteries. If the problem persists then a visit to your dealer for your car or a locksmith 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 can usually program newer fobs for $200 to $250, based on the car. However, he's had to turn down customers who have European models due to the fact that he doesn't have the expensive equipment they require. Luckily, the majority of aftermarket fobs are programmable, but it's always best to talk to the dealer of your choice first to see what the cost is.

How to get a new fob

If your key fob cannot be repaired, you may need to buy a new one. Depending on the make and model, an auto locksmith or a dealership might be able to assist. The dealership is likely to be the most expensive choice to replace your fob, but it also has the tools and software needed to program your car correctly. If you are looking for a less expensive solution, many independent locksmiths will be able to provide you with new car keys for a more affordable cost.

Before you decide to purchase a new fob it's a good idea to try resetting your current one. Your owner's manual should outline the proper procedure for reset which is typically the pushing of a button which restores the factory settings.

It is an excellent idea to read the owner's manual and warranty information prior to deciding which place to go for the replacement of your key fob. If your vehicle's warranty is in good standing or you have an auto club or car insurance policy that covers bumper to bumper, you may qualify for a reimbursement on the cost of a replacement fob.

Finding the best where to purchase the fob you need can be difficult. You might want to go to the dealer to get this service if you have a newer vehicle and you want peace of mind knowing that your key fobs are functioning correctly. If you're looking for a cheaper alternative, it is possible to find a locksmith that will provide the same service for a lower price.

If you're not comfortable doing this type of work yourself A professional locksmith could be a great choice. They are certified and equipped to replace or reprogram the majority of car key fobs and often, they can complete the task quickly. Additionally, locksmiths is often able to come to your home or office to complete the task, which can be very convenient for some people. They can even cut and program keys on the spot when you've lost them, which is ideal for those who don't like to leave their cars in the dark.