Car Key Fob Repairs
Key fobs today can do much more than just unlock and start vehicles. This added complexity could result in costly repairs in the event that it malfunctions.
The good news is that the majority of fobs use flat watch-style batteries that are simple to replace at home. And you may find that a reset will make your device work again.
Battery Replacement
The most frequent reason the key fob ceases to function is because of the battery being dead. It's a simple repair, and is worth trying before you decide to spend money on a new key fob. You can purchase a new button cell battery at your local auto parts retailer or hardware store If you own one. You can also consult your owner's guide (or YouTube for videos explaining how to replace the battery) for specific instructions on how to remove and replace the battery inside your fob.
You'll have to gently pull apart the sides of most fobs in order to access the battery. You'll require a small flat-bladed screwdriver, or a different tool with a thin blade. You can put your tool into a slot on the bottom of the key fob. It is also advisable to look for tiny pieces that may come loose while working.
When you have your new battery, place it in the same way that you removed the old one. The positive (+) side should be facing the buttons, while the opposite side is facing (-), the markings on the battery compartment.
Push a button to test the fob. If it doesn't, you might have an issue with your vehicle that requires a specialist to repair or replace.
Certain key fobs can be difficult to open and their contacts may be fragile and easily corrosion-prone. In these cases the best solution is to consult a car specialist or a dealer. If you're looking to replace batteries, you should be gentle and follow the instructions that are specific to your owner's manual. You may be able find the same battery at a big-box store or discounter, but be sure to check your owner's guide to ensure it's compatible with your car.
Replace the internal key
The majority of key fobs have a physical mechanical key, but it's hidden inside the fob to prevent thieves. If the battery of the fob fails it leaves an internal key that is blank which can open trunks and doors (and in some cases start certain vehicles). Most people don't realize that they can avoid a trip to a dealership by replacing the fob batteries. Most modern fobs use flat watches-style batteries that can be found at auto parts stores and hardware shops. The right kind of battery is important however. A wrong battery can harm the circuitry and cause the fob's failure much sooner.
If you change the battery and discover that the issue is still there, it could be an indication that something else is wrong with your vehicle. If you have an owner's manual, check to see if you can use a reset procedure to restore the fob's factory programming. If this doesn't work then you'll need to go to a dealership or an independent shop that is specialized in vehicle security systems and fob programming.
Fobs may also fail due to faulty transmitter receivers. They are typically located on the dashboard or near the steering wheel, and they transmit signals that allow you to open and start your car using the fob. You may need to get closer to the car to enable it.
A professional may need to open the fob's case to replace the transmitter. A simple screwdriver will usually work, however certain fobs require a specific tool or equipment which can only be found at a dealership. This is a job that must be handled by a qualified mechanic to avoid damaging the fob and yourself.
Reprogramming the Key
A key fob that is not functioning simply needs a fresh battery. These batteries are readily available in both pharmacy and home improvement stores and are cheap. This is a good method to start before you purchase a new key fob.
You can also reprogram your key fob by yourself by following some basic steps. This process can vary between vehicles, so it is recommended to read the owner's manual and research the model you have. For instance the key fob might require the ignition to be on while reprogramming it. Another key might require the key to be removed and inserted several times.
The basic procedure is easy. Make sure the battery is securely in place. Then, get into the driver's seat and close all doors, with the exception of the driver's side door. This will ensure that the new key is communicating with the vehicle in a correct manner. Then, place the old key back in the ignition and turn it on to the ON position, but do not start the engine. Press the lock button while aiming the fob toward the receiver for transmission. It is usually located on the front, above the mirror. The key will signal to the vehicle within a short amount of time that it's being programmed. This can be done by cycling the door locks or by emitting an audible chime. This process can be tricky and it's crucial to be aware of the timing and not to over-press the key button.
If the key fob doesn't work after reprogramming, try using new batteries. If the issue isn't resolved then a visit to your car dealer or a locksmith is a good idea. A professional locksmith will have the tools and programming equipment to reprogram your car's fob or make a new key if it's required.
Genesky says he's able to program newer fobs that range between $200 and $250, based on the vehicle. However, he's had the need to turn down customers who have European models due to the fact that he doesn't have the expensive equipment they require. A majority of the aftermarket fobs are programmed, but always check with your local car dealer to find out the price.
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If the key fob you have cannot be repaired, you might have to purchase a new one. Depending on your vehicle's make and model, an auto locksmith or dealership might be able to assist. The dealership is likely to be the most expensive option for a replacement fob however, it will also have the tools and software needed to program your car correctly. Many independent locksmiths provide a new car key fob at an affordable price.
It's a good idea to attempt to reset your current device before you decide to buy an entirely new one. The owner's manual should explain the proper procedure for reset that is typically pushing a few buttons which restores the original programming.
It is an excellent idea to read the owner's manual and warranty information prior to deciding the best place to get an replacement fob for your key. If your vehicle 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 an entirely new fob.
Getting a fob is easy enough, but finding the right place to have it done isn't easy. You may want to go to the dealer for this service if have a newer vehicle and you want to be confident that your key fobs work correctly. If you're seeking a less expensive alternative, it's possible to find a locksmith who will offer the same service for less cost.
If you're not confident handling this type of work on your own, a professional locksmith may be a good option. They are certified and equipped to repair or replace the majority of car key fobs and often, they can accomplish the task in a short time. Locksmiths can also visit your house or office, which is convenient for many. They can even cut and program keys on-site if you have lost them, which is ideal for those who do not want to leave their cars unattended.