Car Key Fob Repairs
Key fobs today can do much more than simply unlock and start vehicles. But that extra complexity can add up to expensive repair costs when one of them fails.
The positive side is that many fobs have flat-watch-style batteries that are simple to replace at home. You may even find that a reset can make your device work again.
Battery Replacement
A dead battery is the most common cause of the fob's key not working. It's a simple repair, and is worth a try before you spend money on a new fob. You can purchase a new button cell battery at a local auto part retailer or hardware store in the event that you already have one. You can also check the owner's manual (or, if 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 in your particular type of fob.
You'll have to gently pull apart the sides of most fobs to reach the battery. You'll usually need a small screwdriver or a different tool with a thin, flat blade. You can put your tool into a notch at the bottom of the key fob. It is also advisable to be on the lookout for small pieces that could fall off while working.
Insert the new battery the same way you removed the previous one. The positive (+) side should face the buttons, while the opposite side is facing (-) the marks on the battery compartment.
Test the fob to see whether it functions by pressing a button. If it doesn't work, there might be a problem with your vehicle that needs to be repaired or replaced by a professional.
Certain key fobs require special tools to open, and the contacts inside could be fragile 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 patient and follow your owner's instructions. You might be able to find a battery similar in a big-box store or discounter, however, make sure you check the owner's manual to ensure it's compatible with your vehicle.
Replacing 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 leaves behind a blank internal key that is able to unlock trunks and doors (and in some cases, even start certain cars). Most people do not realize that they can avoid a trip to a dealership by replacing the fob batteries. The majority of modern fobs utilize flat watch-style batteries that are readily available in hardware stores and auto parts shops. Using the correct type of battery is crucial however. A bad battery can damage the electronic circuitry and cause the fob to fail much earlier.
If you change the battery and find the issue is still there, it could be a sign that something else is happening with your car. If you have an owner's manual, check to see if there is a reset option available to restore the fob's original programming. If this fails, you'll need visit a dealership or an independent shop that specializes in vehicle-security systems and key fob programming.
Fobs can also malfunction because of faulty transmitter receivers. They are typically located on the dashboard or close to the steering wheel, and transmit signals that allow you to open and start your car with the fob. If you notice that you're having to get closer and closer to your car to get it to work, there's a high chance the transmitter is failing.
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 work, however certain fobs require a specific tool or special equipment that can only be found at a dealership. It is a good idea to have a certified mechanic do this job so that you don't damage the fob or hurt yourself.
Reprogramming the Key
Often a non-functional key fob simply requires a new battery. key repair service are easily found in pharmacy and home improvement stores and are cheap. This is a good option to begin before purchasing the new key fob.
Alternately, you might be able to reprogram the fob by following some basic steps. The procedure may differ for different automobiles, so read the owner's manual and research the model you have. For instance, one key fob may require that the ignition be on while reprogramming it. A key fob might require the key to be inserted multiple times.
The procedure is easy. Make sure the battery is securely in place. Then, get in the driver's seat, and close all doors, excluding the driver's side door. This will ensure that the new key fob is communicating with the vehicle in a proper manner. Place the old key in the ignition and turn it on however, don't start the engine. Press the lock button while aiming the fob towards the receiver for transmission. This is typically located on the front above the mirror. The key will inform the vehicle within a short amount of time that it is being programmed. This can be done by turning the door locks, or emitting an audible chime. This can be a difficult process, so it's important to pay attention to the timing and not to over-press the key button.
If the key fob doesn't work, try reprogramming it again using new batteries. If the problem persists, a visit to your dealer for your car or locksmiths should be considered. A professional locksmith will have the tools and equipment necessary to re-program your car's fob or make an entirely new key if required.
Genesky claims he is able to program newer fobs between $200 and $250, depending on the model of vehicle. He's experienced European models turned away because they don't have the equipment required. Fortunately, most aftermarket fobs can be programmable however it's recommended to consult a car dealer first to determine what the cost is.
Finding a New Fob
If the key fob you have cannot be repaired, you may have to purchase an entirely new one. Depending on the make and model, the dealer or an auto locksmith might be able to help. The dealership is likely to be the most expensive option for a fob replacement, but they will also have the necessary tools and software to programme your vehicle properly. If you are looking for a less expensive solution, a variety of locksmiths will be able to provide you with a brand-new car key fob for a much more reasonable price.
Before you rush to get a new fob it's a good idea to try resetting your current one. The owner's manual should provide the correct procedure for reset. This is usually a series button presses which restores the factory settings.
You should also check the owner's manual and warranty information to see whether you can obtain a replacement key fob. If your vehicle'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 on the cost of replacing the fob.
Finding a fob is simple enough however finding the best location to do it isn't easy. You might want to go to the dealer for this service if have a newer car and want peace of mind knowing that your key fobs are functioning properly. If you are looking for a more affordable alternative, it is possible to find a locksmith who can provide the same service at less cost.
A locksmith who is professional is a great option if you're not comfortable doing this kind of work. They are trained and equipped to repair or replace key fobs for cars of all types, and can do so quickly. In addition, a locksmith can often come to your office or home to do the job which can be extremely convenient for some people. They can even cut and program keys on-site in case you've lost them, which is ideal for those who don't like to leave their cars unattended.