Car Key Fob Repairs
Key fobs of today do a lot more than unlock and start vehicles. This added complexity could result in costly repairs when it fails.
The positive side is that many fobs have flat-watch-style batteries that are easy to replace at home. You may find that a simple reset will allow your fob to function again.
Battery Replacement
A dead battery is the most common cause of a key fob not working. It's simple to repair and worth a try before you invest in the replacement fob. You can purchase the new button cell at a local auto part retailer or hardware store If you own one. You can also refer to your owner's guide (or YouTube for videos explaining how to replace the battery) to get specific instructions on how to open and replace the battery inside your fob.
You'll need to gently pry apart the sides of most fobs in order to access the battery. You'll require a small flat-bladed screwdriver or another tool with a thin blade. It may be helpful to look for a notch on the bottom of the fob which you can use to put your tool in between. You might also want to keep an eye out 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 previous one. The positive (+) side should be facing the buttons, while the opposite side is facing (-) the markings on the compartment for the battery.
Test the fob to see whether it functions by pressing the button. If car key fob repair fails, it might be a problem with your car that needs to be repaired or replaced by a professional.
Certain key fobs can be difficult to open and their contacts could be fragile and easily corroded. In these cases an expert in the field or a dealer could be the best choice. When replacing a battery be gentle and follow your owner's guide. You may be able find the same battery at a big-box retailer or discounter, however, make sure to check the owner's manual to ensure it is compatible with your car.
Replacing the Internal Key
The majority of key fobs have a physical mechanical key however, it's hidden within the fob to keep it from being stolen. If the battery of the fob fails it leaves behind a blank internal key that is able to unlock trunks and doors (and in some cases, even start certain vehicles). Many people don't realize this however, they can avoid a trip to the dealership by simply replacing the fob battery. Most modern fobs use flat watch-style batteries that are easy to find at auto parts stores and hardware shops. Choosing the right type of battery is crucial, however. A wrong battery can harm the circuitry and cause the fob to fail much earlier.
If the problem continues to persist after you replace the battery, it could be an indication that there is something else going on in your vehicle. Review the owner's manual of your vehicle to determine if there's a reset procedure that will restore the fob's factory programming. If this fails, you'll need go to a dealer or a shop independent that specializes in vehicle-security systems and key fob programming.
Fobs can also malfunction because of faulty transmitter receivers. They are usually found near the steering wheel or in the dashboard. They transmit signals to enable you to unlock your car and begin it using the fob. It is possible that you will need to get closer to the car to get it to work.
It might be required for a professional to access the case of the fob to replace the transmitter. A simple screwdriver will usually do the trick, but certain fobs require a special tool or equipment that can only be found at a dealer. This job must be handled by a qualified mechanic to avoid damaging the fob and yourself.
Reprogramming the Key
A key fob that is not working might just need an upgrade in battery. Since these batteries are inexpensive and readily available at pharmacies and home improvement stores, it's an excellent first step prior to investing in a new car key fob.
You can also reprogram your key fob on your own If you follow a few basic steps. This procedure can differ between automobiles, so read the owner's manual and research your specific model. For instance, one key fob may require that the ignition be on while reprogramming it. Another may require the key to be inserted and removed multiple times.
The process is straightforward. First, ensure that the new battery is securely in place. Close all doors except the driver's door. This will ensure that the new key fob is communicating with the vehicle correctly. Place the old key in the ignition and turn it on, but don't start the engine. Then press the lock button on the fob while looking at the transmission receiver, which is usually situated on the front of the vehicle above the mirror. Within a short time frame the key will signal to the vehicle that it's been programmed by cycling the doors' locks or emitting a chime. This procedure can be difficult, so it's important to be attentive to the timing and not to over-press the key button.
If the key fob won't function after reprogramming, you can try using a new battery. If the issue isn't resolved you should visit your car dealer or a locksmith should be considered. A professional will have the tools and equipment necessary to re-program your car's fob, or create an entirely new key if required.
Genesky says he's able to program newer fobs between $200 and $250, depending on the vehicle. Genesky has experienced European models rejected because he lacks the expensive equipment needed. Fortunately, many aftermarket fobs can be programmed but it's always best to talk to the dealer of your choice first to see what their price is.
How do I get a new fob
If the key fob you have cannot be fixed, you could require a new one. Depending on the brand and model, a dealership or an auto locksmith might be able to help. The dealership is likely to be the most expensive choice for a replacement fob but it will also have the tools and software necessary to program your car correctly. Many independent locksmiths offer a brand new car key fob at the lower cost.
Before you decide to purchase a new key fob, it is an excellent idea to try resetting your current one. The owner's manual should explain the proper reset procedure that is typically the pushing of a button that reset it to factory programming.
You should also check your owner's guide and warranty information to determine whether you can obtain an alternative fob for your key. If your car's warranty is in good standing or you have an auto club or insurance policy that covers bumper to bumper you could qualify for a reimbursement of the cost of a replacement fob.
Finding the best place to get the fob you need can be difficult. It is possible to visit the dealer for this service if you have a newer car and want to be confident that your keyfobs are working properly. If you're seeking a less expensive alternative, it's possible to find a locksmith who will provide the same service for a lower price.
A locksmith who is professional is a great choice for those who aren't comfortable with this type of work. They are skilled and equipped to replace or reprogram most types of car key fobs and often they can do it quickly. In addition, a locksmith is often able to come to your office or home to complete the task which is convenient for some people. They can also cut and program keys on the spot if you've lost keys. This is great for those who do not want to leave their car without a key.