Car Key Fob Repairs
Key fobs of today can do more than unlock and start cars. But that extra complexity can result in costly repairs in the event that one of them malfunctions.
It's good to know that the majority of fobs are powered by flat-watch-style batteries which can be easily replaced at home. It is possible that a simple reset will allow your fob to function again.
Battery Replacement
The most frequent reason the key fob ceases to function is due to the battery being dead. This is a simple fix, and it's worth trying before you decide to spend money on a new key fob. You can pick up the new button cell at your local auto parts retailer or hardware store if you have one. You can also refer to the owner's manual (or in the case that you don't have one, YouTube is full of videos of people who explain how to do it) for specific instructions for opening and replacing the battery in the specific type of fob you have.

car key fob repairs of fobs have two halves that snap together- you'll need to gently break the sides to access the battery. You'll typically need a small screwdriver or some other tool equipped with a thin, flat blade. It may be helpful to look for a groove along the lower edge of the fob that you can put your tool in between. It is also advisable to look for small pieces that could be loosened while working.
Insert the new battery in the same way you removed the previous one. The positive (+) side should be facing the buttons and the negative (-) the marks on the battery compartment.
Test the fob to see whether it functions by pressing a button. If it isn't working, there may be a problem with your vehicle that needs to be repaired or replaced by a professional.
Certain key fobs require specific tools to open and close, and the connections inside could be fragile and susceptible to corroding. In these situations the best choice is to speak with a specialist or a dealer. If you're in need of replacing a battery, try to be gentle and follow the instructions specifically in the owner's manual. You might be able locate a comparable battery at a discounter or a big-box retailer however, you'll need to check the owner's manual to ensure that it's the right one for your vehicle.
Replace the internal key
To guard against theft, many key fobs have a mechanical key hidden inside. If the battery of the fob fails it will leave an internal key that is blank that is able to unlock trunks and doors (and in some cases start certain cars). Most people aren't aware of this, but they can save having to go to the dealership by simply replacing the fob battery. The flat watch-style battery is found in most modern fobs. They can be found at auto parts stores and hardware stores. It is crucial to choose the correct kind of battery. A wrong type of battery can harm the electronic circuitry and cause the battery to fail earlier.
If the issue persists after you replace the battery, it could be an indication that something else is wrong with your vehicle. If you have an owner's guide and you're not sure, try to determine if a reset procedure is available to restore the fob's original programming. If this doesn't work, you'll have visit a dealership or a shop independent that specializes in security systems for vehicles and key fob programming.
Fobs can also malfunction due to faulty transmitter receivers. They are typically placed on the dashboard or near the steering wheel, and transmit signals that allow you to unlock and start your car with the fob. You may have to move closer to your car to make it work.
It may be required for a professional to remove the case of the fob to replace the transmitter. A simple screwdriver is enough to accomplish the task, but some fobs have complex release mechanisms that require a special tool or specialized equipment available only at a dealer. It's best to have a qualified mechanic do this job so that you don't damage the fob or injure yourself.
Reprogramming the Key
A key fob that's not working may simply need a new battery. Because they are cheap and readily available in pharmacies and home improvement stores, this is an excellent first step prior to purchasing the purchase of a new car key fob.
Alternately, you might be able to program the fob yourself by following a few basic steps. The process is different for different vehicles brands, so it's essential to refer to the owner's manual as well as research the specifics of your particular model. For instance the key fob might require the ignition to be turned on while reprogramming it. Another may require the key to be removed and inserted repeatedly.
The general process is simple. Make sure the battery is securely in place. Then, get in the driver's seat, and close all doors EXCEPT for 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. Press the lock button while aiming the fob towards the receiver for transmission. It is usually located on the left side, just 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 off the door locks or emitting an audible chime. This is a challenging process, so pay close attention to the timing and don't press too hard the button.
If the key fob does not work try reprogramming it using new batteries. If the issue persists you should visit the dealer of your vehicle or locksmiths should be considered. A professional will have all the tools and equipment to reprogram your car's fob or create a new one, if required.
Genesky says that he can program newer fobs ranging from $200 and $250, based on the vehicle. However, he's had to turn down customers who have European models due to the fact that there's no equipment they require. Fortunately, most aftermarket fobs are programmable however it's recommended to consult the dealer of your choice first to see the price.
Getting a New Fob
If your key fob is simply beyond repair, you might require a new one. Based on the make and model, an auto locksmith or dealership might be able to assist. The dealership will likely be the most expensive option for a replacement fob, but they will also have all of the necessary tools and software to programme your vehicle properly. Many locksmiths in independent shops offer a brand new car key fob for a much lower price.
It is a good thing to attempt to reset your current device before you rush out to buy another one. The owner's manual should provide the correct method of reset. It is typically a series button presses that reset the factory program.
It's also a good idea to review your owner's manual as well as warranty information before you decide where to go for the replacement of your key fob. If your car is under warranty or you have a car insurance policy or auto club membership that includes 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 however finding the best place to have it done isn't easy. If you have a relatively new vehicle and you want the security from knowing that your key fobs are in working condition, you might prefer going to the dealership for this service. If you're seeking a less expensive alternative, it's possible to find a locksmith that will provide the same service at an affordable cost.
A locksmith who is professional is a good option for those who aren't comfortable with this kind of work. They are skilled and equipped to replace or reprogram all kinds of car key fobs, and they can often do it quickly. Additionally, locksmiths can often come to your workplace or home to complete the task which can be extremely useful for certain people. They can also cut and program keys on site if you've lost them. This is great for those who don't like to leave their car without a key.