Key fobs today can do more than unlock and start vehicles. However, the added complexity could result in expensive repair costs in the event that one of them malfunctions.
It's important to know that the majority of fobs are powered by flat watch-style batteries that can be replaced at home. And you may find that a reset will bring it back to life.
Battery Replacement
The most frequent reason why a key fob stops working is because of an inoperative battery. It's simple to repair and worth a try before you invest in an alternative fob. Simply drive your car to an auto parts store or a hardware retailer that sells button cell batteries and pick up an alternative. You can also refer to the owner's manual (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.
You'll need to gently pry away the sides of the majority of fobs to access the battery. You'll require a small flat-bladed screwdriver, or a different tool with a blade that is thin. You can wedge your tool into a notch at the bottom of the key fob. You may also want to be on the lookout for small pieces that may come loose while you work.
Once you have your new battery, you can insert it in the same manner that you removed the old one. Make sure the positive (+) side is facing up toward the buttons, and that the negative (-) side of the battery is aligned correctly with the markings in the battery compartment of your fob.
Push a button to test the fob. If it doesn't work, there could be a problem in your vehicle that requires to be repaired or replaced by a specialist.
Some key fobs are difficult to open and their contacts may be fragile and easily corrosion-prone. In these instances, a car specialist or a dealer could be the best option. When replacing a battery be gentle and follow the owner's instructions. You might be able locate a comparable battery at a discounter store or a big-box retailer, but you'll need to consult your owner's manual to ensure that it matches your car.
Replacing the Internal Key
To protect against theft, the majority of key fobs have a mechanical key hidden inside. When the battery in a fob dies and the key is discarded, a blank one is left behind, which can be used to unlock doors and trunks. In some cases it is possible to start certain cars. Many people don't realize this however, they can save 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 stores and auto parts stores. Choosing the right type of battery is important, however. A wrong battery can harm the circuitry, causing the fob to fail much earlier.
If you change the battery and find the problem persists it could be an indication that something else is going on with your car. Review the owner's manual of your vehicle to determine if you have a reset procedure that can restore the fob's factory programming. If this doesn't help then you'll need to visit a dealer or an independent shop that specializes in vehicle security systems and fob programming.
Fobs could also fail because of faulty transmitter receivers. They are typically placed on the dashboard or close to the steering wheel, and they send signals that allow you to open and start your car using the fob. You may need to get closer to the car in order to enable it.
It might be necessary for a professional to open the case of the fob to replace the transmitter. A simple screwdriver is usually enough to suffice, but certain fobs require a specific tool or special equipment that can only be purchased at a dealership. This job should be done by a certified mechanic in order to avoid damaging the fob and yourself.
Reprogramming the Key
A key fob that's not working could just require an upgrade in battery. These batteries are easily found in both pharmacy and home improvement stores and are affordable. This is a good method to start before you purchase an entirely new key fob.
Alternatively, you may be able to program the fob on your own by following some basic steps. The procedure may differ for different vehicles, so it is recommended to refer to the owner's manual and research the model you have. For instance the key fob might require the ignition to be turned on while reprogramming it. Another might need the key to be inserted and removed multiple times.
The basic procedure is simple. Make sure 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 into the ignition and turn it to the ON position, but don't start the engine. Then, 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. In a short period of time the key will announce to the vehicle that it's being programmed by cycling the doors' locks or generating a chime. This is a difficult process, so pay close attention to timing and don't over-press the button.
If the key fob does not work try reprogramming it with new batteries. If the issue persists, a visit to your dealer for your car or locksmiths should be considered. A professional locksmith will have the tools and equipment required to reprogram the car fob or design a new one, if required.
Genesky says he can usually program newer fobs for around $200 to $250, based on the model of vehicle. However, he's had the need to turn away customers with European models because they don't have the costly equipment they require. A majority of the aftermarket fobs are programmed, but you should always inquire with your local dealer to determine the price.
How do I get a new fob
If your key fob cannot be repaired, you may require another one. Depending on your vehicle's make and model, an auto locksmith or a dealership may be able to help. The dealership is likely to be the most expensive option for a replacement fob but it will also have the tools and software needed to program your car properly. Many locksmiths in independent shops offer a brand new car key fob for an affordable price.
Before you purchase a new key fob, it is an excellent idea to try resetting your current device. The owner's guide should explain the correct procedure for reset. This is usually a series button presses which restores the factory settings.
It is recommended to check your owner's manual as well as warranty information before you decide the best place to get a key fob replacement. If remote key fob repair is under warranty or you have a car insurance policy or auto club membership that provides bumper-to-bumper coverage, you may be eligible to receive a reimbursement for the cost of a new fob.
Finding a fob is simple enough however finding the best location to do it isn't easy. If you own a new car and want the assurance with knowing that your key fobs are in working condition, you might be better off visiting the dealership for this service. If car key fob repair are looking for a more affordable alternative, it's possible to find a locksmith who can provide the same service at a lower price.
If you're not confident handling this type of work yourself, a professional locksmith may be a great option. They are trained and equipped to replace or reprogram key fobs for cars of all kinds and can do it quickly. In addition, a locksmith is often able to come to your home or office to complete the task which is useful for certain people. They can cut keys and program them on site if you've lost keys. This is perfect for those who do not like to leave their car without a key.
