10 Easy Ways To Figure Out Your Car Key Fob Repair
Car Key Fob Repairs
Key fobs today do a lot more than unlock and start vehicles. However, that added complexity can cause costly repairs if one of them breaks.
It's a good idea to know that a majority of fobs are powered by flat watch-style batteries, which can be easily replaced at home. It is possible that a simple reset can bring your fob back to life.
Battery Replacement
A dead battery is the most frequent reason for the fob's key not working. It's a simple fix, and it's worth trying before you spend money on a new key fob. Simply take your car to a local hardware or auto parts retailer that sells button cell batteries and pick up the replacement. You can also refer to your 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 the specific type of fob you have.
You'll need to gently pry away the sides of the majority of fobs to reach the battery. It's usually a screwdriver or some other tool that has a flat, thin blade. It's a good idea to look for a groove along the bottom of the fob which you can wedge your tool between. You may also want to look for tiny pieces that might break loose while you work.
When you have your new battery, place it in the same manner that you removed the old one. Make sure that the positive (+) side is facing upwards toward the buttons, and that the negative (-) side of the battery is aligned correctly with the markings inside the battery compartment of your fob.
Check the fob to determine whether it is working by pressing the button. If it isn't working, there might be a problem with your vehicle that needs to be fixed or replaced by a specialist.
Certain key fobs are difficult to open and the contacts may be fragile and easily damaged. In these situations an expert in the field or the dealer will likely be the best choice. If you're in need of replacing batteries, you should be very gentle and follow the specific instructions in the owner's manual. You might be able to find a similar battery at a discounter or big-box retailer but you'll have to check the owner's manual to make sure that it's the right one for your vehicle.
Replacing the Internal Key
To prevent theft, most key fobs have a mechanical key hidden inside. When the fob battery dies, it leaves an internal key blank which can open doors and trunks (and in some cases start certain cars). Most people don't realize that they can avoid a trip to the dealership by recharging the fob batteries. The flat watch-style batteries are used in most modern fobs. These batteries can be located at auto parts stores and hardware stores. car key fob repairs is important to use the right type of battery. A wrong battery can harm the circuitry, causing the fob's failure much sooner.

If you change the battery and discover that the issue persists it could be a sign that something else is going on with your car. Go through the owner's manual to determine if there's a reset procedure that will bring the fob back to the factory program. If this fails, you'll need to 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 placed on the dashboard or near the steering wheel, and transmit signals that allow you to open and start your car with the fob. If you're having to get closer and closer to your vehicle in order to make it work, there's a great possibility that the transmitter is not working.
It may be necessary for a professional to access the case of the fob in order to replace the transmitter. A simple screwdriver will usually work, however certain fobs require a specific tool or equipment that can only be found at a dealer. It is a good idea to have a qualified mechanic perform this task so you don't accidentally break the fob or cause injury to yourself.
Reprogramming the Key
A key fob that is not working may simply need an upgrade in battery. These batteries are easily found in both pharmacy and home improvement stores and are inexpensive. This is a good option to begin before purchasing a new key fob.
Alternately, you might be able to reprogram the fob yourself by following the steps. The procedure varies for different vehicle brands, so it's essential to refer to the owner's manual and research the specifics of your particular model. For instance the key fob might require that the ignition be turned on while reprogramming it. One key fob may require the key to be inserted multiple times.
The basic procedure is easy. Make sure that the battery is securely in place. Close all doors, with the exception of the driver's door. This will ensure that the new key fob communicates with the vehicle correctly. Place the old key in the ignition and turn it on but do not start the engine. Next, press the lock button on the fob while making sure to point it towards 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 period of time that it's 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 essential to pay attention to the timing and to not over-press the key button.
If the key fob still does not work Try reprogramming it with new batteries. If the issue persists, you might want to visit your local dealer or locksmith. A professional will have all the tools and equipment needed to reprogram the car fob or create a new one if necessary.
Genesky says he's able to program newer fobs for $200-$250, depending on the vehicle. However, he's had the need to refuse customers with European models because there's no equipment they require. The majority of aftermarket fobs can be programmed, but you should always consult your local car dealer to find out the cost.
Finding a New Fob
If your key fob is beyond repair, you may need to get a new one. Depending on the model and make, an auto locksmith or a dealership may be able to help. The dealership is likely to be the most expensive option for a replacement fob but it will also have the tools and software required to program your car properly. For a more affordable solution, many independent locksmiths will be able to provide you with new car keys for a more affordable cost.
It's a good idea to try to reset your current fob before you decide to buy an entirely new one. The owner's guide should explain the correct procedure for reset. It is typically the result of a series of button presses which restores the factory settings.
It is also a good idea to check your owner's manual as well as warranty information before deciding the best place to get an replacement fob for your key. If your car is still under warranty, or you have a car insurance policy or auto club membership that includes bumper-to-bumper protection, you may be eligible for reimbursement for the cost of an entirely new fob.
Finding the right location to purchase a fob can be a challenge. You might want to visit the dealer for this service if have a newer vehicle and you want to be confident that your key fobs work correctly. However, if you're looking for a more affordable option, it is often possible to find an independent locksmith who can offer the same services for a lower cost.
A locksmith professional is a good option If you're not confident doing this kind of work. They are equipped and trained to repair or replace keys for cars of all kinds and can do it quickly. A locksmith can also visit your house or office which is convenient for a lot of people. They can cut and program keys on the spot in case you've lost them. This is perfect for those who don't want to leave their car in the garage.