Car Key Fob Repairs
Today's key fobs can do more than unlock and start vehicles. But that extra complexity can cause costly repairs if one of them breaks.
It's important to know that the majority of fobs are powered by flat-watch-style batteries that can be replaced at home. It is possible that a reset can bring it back to life.
Battery Replacement
A dead battery is the most common reason for the fob's key not working. This is easy to repair, and is worth trying before you spend money on a new fob. Simply take your car to an hardware or auto parts retailer that carries button cells and choose a replacement. You can also consult your owner's guide (or YouTube for videos explaining how to replace the battery) to get specific instructions on how to remove and replace the battery inside your fob.
The majority of fobs have two halves that snap together- you'll need to gently break the sides to access the battery. You'll require a small flat-bladed screwdriver, or another tool with a thin blade. You can wedge your tool into a slot on the bottom of the key fob. You may also want to keep an eye for tiny pieces that could break loose while you work.
Install the new battery in the same manner as you removed the previous one. The positive (+) side should face the buttons, while the opposite side is facing (-), the markings on the compartment for the battery.
Push a button to test the fob. If it doesn't work, you may have an issue with your vehicle that requires a professional to fix or replace.
Certain key fobs can be difficult to open, and the contacts could be fragile and easily corroded. In these situations an expert in the field or a dealer could be the best option. When replacing a battery be gentle and follow the owner's instructions. You may be able to locate an identical battery in a big-box store or discounter, however, make sure you read the owner's manual to ensure it's compatible with your car.
Replace the internal key
To protect against theft, the majority of key fobs are equipped with an internal mechanical key that is hidden within. If the battery of the fob fails it will leave an internal key blank that can unlock trunks and doors (and in some cases, even start certain cars). Most people aren't aware of this, but they can avoid a trip to the dealership by simply replacing the fob battery. The flat watch-style battery is used in most modern fobs. They can be located at hardware and auto parts stores. It is crucial to choose the correct kind of battery. The wrong kind can damage the electronic circuitry, which can cause the fob to fail much faster.
If the issue persists after you replace the battery, it may be an indication that something else is going on with your vehicle. Check your owner's manual to see if there's an option to reset the fob and restore the fob to factory-setup. If this isn't working, you'll need visit a dealership or a shop independent that specializes in security systems for vehicles and key fob programming.
Fobs can also malfunction due to faulty transmitter receivers. They are typically located close to the steering wheel, or on the dashboard. They transmit signals that enable you to unlock your car and start it with the fob. It is possible that you will need to get closer to the car in order to enable it.
It could be required for a professional to open the case of the fob to replace the transmitter. A simple screwdriver will usually accomplish the task however some fobs come with complex release mechanisms that require a specialized tool or specialized equipment that is available only at a dealer. It's best to have a certified 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 an upgrade in battery. These batteries are easily found in home improvement and pharmacy stores and are affordable. This is a great way to start before buying a new key fob.
Alternatively, you may be able to re-program the fob by following the steps. The procedure may differ for different automobiles, so refer to the owner's manual and research the model you have. For example the key fob might require the ignition to be turned on while reprogramming it. A key fob might require the key to be inserted several times.
The basic procedure is simple. First, make sure that the new battery is in place. Close all doors, except the driver's door. This will ensure the new fob is communicating with the vehicle properly. Insert the old key into the ignition, then turn it on but don't start the engine. Press the lock button while aiming the fob toward the transmission receiver. This is typically located on the left side, just above the mirror. The key will inform the vehicle within a short amount of time that it is being programmed. This can be accomplished by turning off the door locks, or emitting an audible chime. car key repair cost is a difficult process, so pay close attention to the timing and avoid pressing too hard the button.
If the key fob won't work after reprogramming, try using new batteries. If the issue persists, a visit to your car dealer or a locksmith is a good idea. A professional will have all the tools and equipment needed to reprogram your car's fob or design a new one, if required.
Genesky claims he is able to program newer fobs that range between $200 and $250, depending on the model of vehicle. He's had European models rejected because he lacks the expensive equipment required. Fortunately, most aftermarket fobs are programmable however it's best to talk to a car dealer first to determine what their price is.
Finding a New Fob
If your key fob cannot be fixed, you could have to purchase a new one. Depending on the brand and model, the dealership or an auto locksmith might be able to help. The dealership is likely to be the most expensive option for a replacement fob, however, it will also have the tools and software necessary to program your car correctly. Many locksmiths in independent shops provide a new car key fob for a much lower price.
It is a good thing to try to reset the fob you have before you rush out to buy a new one. The owner's manual should explain the correct procedure for reset that is typically a series of button pushes that reset the original programming.
You should also look over the owner's manual and warranty information to see whether you are eligible for a replacement fob for your key. If your vehicle is under warranty or you have a car-insurance policy or auto club membership that provides bumper-to-bumper insurance, you might be able to receive some reimbursement for the cost of the new fob.
Finding the right location to purchase a fob can be difficult. You may want to visit the dealer for this service if are driving a brand new car and are looking to feel secure knowing that your keyfobs are working correctly. If you're seeking a less expensive alternative, it's possible to find a locksmith who can provide the same service at less cost.
A professional locksmith is a great option if you're not comfortable doing this type of work. They are equipped and trained to replace or reprogram car key fobs of all kinds and do it quickly. Locksmiths can also visit your house or office which is a great option for many. They can cut keys and program them on site if you've lost keys. This is perfect for those who don't like to leave their car unattended.