Today's key fobs can do more than unlock and start cars. However, that added complexity can result in expensive repair costs in the event that one of them malfunctions.
It's good to know that most fobs are powered by flat watch-style batteries, which can be easily replaced at home. It is possible that a reset will get yours working again.
their explanation that a key fob doesn't work is because of an inoperative battery. It's a simple repair, and is worth trying before you go spending money on a new fob. Simply take your car to an hardware or auto parts retailer that sells button cell batteries and purchase a replacement. You can also consult the owner's manual (or in the case that you don't have one, YouTube is full of videos from people explaining how to do it) for specific instructions for opening and replacing the battery in the particular type of fob.
You'll have to gently pull off the sides of many fobs to access the battery. You'll typically need a small screwdriver or another tool that has a flat, thin blade. You can put your tool into a slot on the bottom of the key fob. You might also want to watch for tiny pieces that may come loose while you work.
When you have your new battery, place it in the same way that you removed the previous one. Make sure the positive (+) side is facing up toward the buttons and that the negative (-) side of the battery is aligned with the markings inside the battery compartment of your fob.
You can push a button to test the fob. If it doesn't work, you might have a problem with your car that requires a professional 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 the best choice is to speak with a specialist or dealer. When replacing a battery, be gentle and follow the owner's instructions. You might be able to locate a comparable battery at a discounter or a big-box retailer, but you'll need to consult your owner's manual to ensure that it's compatible with your vehicle.
Replacing the Internal Key
To protect against theft, the majority of key fobs have a mechanical key hidden inside. If the battery of the fob fails it leaves behind a blank internal key which can open doors and trunks (and in some cases start certain vehicles). A majority of people do not realize that they can avoid a trip to a dealership by recharging the fob batteries. The flat watch-style battery is used in most modern fobs. These batteries can be found in hardware and auto parts stores. It is crucial to choose the right type of battery. A wrong type of battery can harm the electronic circuitry, which can cause the fob to fail earlier.
If you replace the battery and find the issue is still there it could be an indication that something else is wrong in your vehicle. 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 original programming. If this fails, you'll need to visit a dealership or an independent shop that specializes in security systems for vehicles and key fob programming.
Fobs may also malfunction due to faulty transmitter receivers. These are usually built into the dashboard or close to the steering wheel, and they transmit signals that allow you to unlock and start your car using the fob. You may need to get closer to the car to enable it.
A professional might have to open the case to replace the transmitter. A simple screwdriver will usually accomplish the task, but some fobs have complicated release mechanisms that require a specific tool or equipment that is available only at a dealership. This task must be handled by a qualified mechanic to ensure that the fob is not damaged and yourself.
Reprogramming the Key
A key fob that is not working might just need a new battery. Since these batteries are inexpensive and readily available in pharmacies and home improvement stores, this is the ideal 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 a few basic steps. The procedure may differ for different automobiles, so consult your owner's guide and research the model you have. For instance one key fob could require that the ignition be switched on while reprogramming the key. One key fob may require the key to be inserted multiple times.
The procedure is simple. First, make sure that the new battery is firmly in place. Then, sit in the driver's seat, and close all doors, with the exception of the driver's side door. This will ensure the new fob is communicating with the vehicle correctly. Place the old key in the ignition and turn it on however, don't start the engine. Next press the lock button on the fob while making sure to point it towards the transmission receiver, which is typically located on the front of the car above the mirror. Within a short time frame the key will signal to the vehicle that it's being programmed by triggering the doors' locks or emitting the sound of a chime. This process can be tricky and it's crucial to be attentive to the timing and not to over-press the key button.
If the key fob isn't working, try reprogramming it again using new batteries. If the problem persists you may want to visit your car dealer or locksmith. A professional will have the tools and equipment needed to reprogram your car's fob or make an entirely new key if needed.
Genesky says he's able to program newer fobs at around $200 to $250, based on the model of vehicle. However, he's had to turn down customers who have European models due to the fact that there's no equipment they require. A majority of the aftermarket fobs are programmed, but always inquire with your local car dealer to determine the cost.
How do I get a brand new fob
If your key fob can't be repaired, you may have to purchase an entirely new one. Based 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 all of the necessary tools and software to program your vehicle correctly. If you are looking for a less expensive solution, many independent locksmiths can offer you an entirely new car key fob for a more affordable price.
Before you rush to get a new key fob, it is an excellent idea to try resetting your current one. The owner's guide should explain the correct procedure for reset. This is usually the result of a series of button presses which restores the factory settings.
It is also recommended to check your owner's guide and warranty information to see whether you are eligible for an additional fob for your key. If your car's warranty still active 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.
Getting a fob is easy enough, but finding the right location to get it done can be tricky. You might want to go to the dealer for this service if have a newer car and you want to be confident that your key fobs are functioning properly. If you're seeking a less expensive alternative, it's possible to find a locksmith that will provide the same service at less cost.
If you're not comfortable doing this kind of work yourself A professional locksmith could be a good option. They are certified and equipped to replace or reprogram the majority of car key fobs, and they can often accomplish the task in a short time. Locksmiths can also come to your office or home which is convenient for a lot of people. They can even cut and program keys on the spot in case you've lost keys, which is great for those who don't like to leave their cars unattended.
