Car Key Fob Repair: What's The Only Thing Nobody Is Talking About
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Car Key Fob Repairs
Key fobs today can do much more than unlock and start vehicles. However, that added complexity can result in high repair bills when one of them fails.
The positive side is that many fobs use flat watch-style batteries that are easy to replace at home. You might find that a simple reset can make your fob work again.
Battery Replacement
A dead battery is the most common reason for the fob's key not working. It's simple to fix and worth trying before you purchase an alternative fob. You can purchase an additional button cell battery at a local auto part retailer or hardware store if you have one. 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 replace and open the battery in your fob.
You'll have to gently pull apart the sides of most fobs to access the battery. It's usually a screwdriver or some other 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 be on the lookout for small pieces that could fall off while working.
Insert the new battery the same way as you removed the previous one. The positive (+) side should face the buttons, while the opposite side is facing (-) the marks on the battery compartment.
Push a button to test the fob. If it isn't working, 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 close them, and the contacts inside may be delicate and easily corroded. In these situations, a car specialist or dealer may be the best option. If you need to replace the battery, make sure to be very gentle and follow the specific instructions in your owner's manual. You might be able to find the same battery at a big-box store or discounter, but make sure to check your owner's guide to ensure that it's compatible with your vehicle.
Replacing the Internal Key
Most key fobs contain an actual mechanical key however, it's hidden within the fob to prevent thieves. When the fob battery dies, it leaves an internal key that is blank that is able to unlock doors and trunks (and in some cases start certain cars). Many people don't realize this, but they can save themselves a trip to the dealership by simply replacing the fob battery. The flat watch-style battery is used in the majority of modern fobs. These batteries can be found in auto parts stores and hardware stores. The right kind of battery is essential, however. A bad battery can cause damage to the circuitry and lead to the fob's failure earlier.
If the problem persists after replacing the battery, it could be an indication that there is something else wrong with your vehicle. Review the owner's manual of your vehicle to determine if there's a reset procedure that can restore the fob's factory-setup. If this fails, you'll need to visit a dealership or independent shop that specializes vehicle-security systems and key fob programming.
Fobs may also fail due to malfunctioning transmitter receivers. They are typically located near the steering wheel or on the dashboard. They transmit signals to allow you to unlock your car and begin it using the fob. You may have to move closer to your car to get it to work.
A professional might have to open 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 special equipment which can only be found at a dealer. This job should be done by a certified mechanic to avoid damaging the fob and yourself.
Reprogramming the Key
Often a non-functional key fob simply requires a new battery. Because they are cheap and readily available at pharmacies and home improvement stores, this is a good first step before investing in the purchase of a new car key fob.
You can also change the programming of your key fob by yourself if you follow the steps below. This process can vary between vehicles, so you should consult your owner's guide and research the model you have. For instance, one key fob may require the ignition to be switched on while reprogramming the key. One key fob could require the key to be inserted several times.
The procedure is easy. First, ensure that the new battery is firmly in place. Close all doors, with the exception of the driver's door. This will ensure the new key is communicating with the vehicle properly. Put the old key in the ignition, then turn it ON, but do not start the engine. Next press the lock button on the fob while aiming it at the transmission receiver, which is typically situated on the front of the car above the mirror. The key will notify the vehicle within a short amount of time that it is being programmed. This can be accomplished by cycling the door locks, or emitting an audible chime. This is a difficult process, so pay close attention to the timing and avoid pressing too hard the button.
If the key fob does not work Try reprogramming it with fresh batteries. If the issue persists, you might want to check with your local dealer or locksmith. A professional will have the tools and key repair for car equipment needed to reprogram your car's fob or clone a new key if it's needed.
Genesky says he's able to program newer fobs at around $200 to $250, based on the vehicle. However, he's had to refuse customers with European models due to the fact that they don't have the costly equipment they require. Most aftermarket fobs can be programmed, but you should always inquire with your local car dealer to determine the price.
A New Fob
If the key fob you have cannot be repaired, you may have to purchase a new one. Depending on the make and model, the dealership or an auto locksmith may be able to assist. The dealership is likely to be the most expensive choice to replace your fob, but it also has the tools and software necessary to program your car properly. Many independent locksmiths offer a brand new car key fob for a much lower price.
Before you rush to get a new key fob it's a good idea to try resetting your current one. The owner's guide should explain the correct procedure for reset. It is typically a series button presses which restores the factory settings.
It is an excellent idea to check your owner's manual and warranty information prior to deciding the best place to get an replacement fob for your key. If your vehicle's warranty is in good standing or you have an auto club or car insurance policy that covers bumper-to-bumper you could qualify for a reimbursement of the cost of a replacement fob.
Finding the right location to purchase a fob can be difficult. If you have a relatively new vehicle and you want the security with knowing that your keys fobs are in working condition, you might be better off visiting the dealership to get this service. If you're seeking a less expensive alternative, it's possible to find a locksmith that will provide the same service at a lower price.
A professional locksmith is a good option if you're not comfortable doing this type of work. They are trained and equipped to change or reprogram car key fobs of all types, and can do so quickly. Additionally, locksmiths is often able to come to your home or office to do the job which is useful for certain people. They can even cut and program keys on-site in case you've lost keys, which is great for those who don't like to leave their cars in the dark.