Car Key Fob Repairs
Key fobs today can do much more than simply unlock and start vehicles. However, that added complexity can cause costly repairs if one of them breaks.
It's important 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.
Battery Replacement
A dead battery is the most common cause of a key fob not working. It's simple to fix and worth trying before you spend money on a replacement fob. Take your car to a local hardware or auto parts retailer that stocks button cell batteries and purchase a replacement. You can also check your owner's manual (or in the event 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 on the particular type of fob.
The majority of fobs have two halves that snap together -- you'll need to gently break the sides to get to the battery. You'll typically need a small screwdriver or another tool that has a flat, thin blade. You can wedge your tool into a notch at the bottom of the key fob. You may also want to keep an eye out for tiny pieces that could break loose as you work.
Install the new battery in the same way as you removed the previous one. The positive (+) side should be facing the buttons and the reverse (-), the markings on the battery compartment.
Press a button to test the fob. If it doesn't, you may 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 could be fragile and susceptible to corroding. In these situations an expert in the field or a dealer could be the best option. When replacing a battery be gentle and follow the owner's manual. You may be able find a battery similar at a big-box retailer or discounter, but make sure to check the owner's manual to ensure it is compatible with your vehicle.
Replace the internal key
To guard against theft, many key fobs come with an internal mechanical key that is hidden within. If the battery inside the fob goes out and the key is discarded, a blank one is left behind that can be used to open doors and trunks. In some instances, this key can even start certain cars. The majority of people don't realize they can avoid a trip to the dealership by replacing the fob batteries. The flat watch-style battery is used in most modern fobs. These batteries can be located at hardware stores and auto parts stores. It is essential to choose the correct type of battery. broken car key repair can damage the circuitry and cause the fob to fail much earlier.
If you change the battery and discover that the issue is still there, it could be a sign that something else is going on in your vehicle. If you have an owner's guide, check to see if a reset procedure is available to restore the fob's factory programming. If that doesn't help you'll have to visit a dealership or an independent shop that specializes in vehicle security systems and fob programming.
Fobs can also malfunction because of faulty transmitter receivers. These are usually located near the steering wheel or in the dashboard. They transmit signals to allow you to unlock your car and begin it using the fob. If you notice that you're being required to get closer and closer to your vehicle to be able to make it work, there's a great chance the transmitter is failing.
It might be necessary for a professional to open the case of the fob to replace the transmitter. A simple screwdriver can usually accomplish the task however, some fobs have complex release mechanisms that require a specific tool or specialized equipment available only at a dealer. It's a good idea to have a qualified mechanic perform this task so you don't accidentally break the fob or injure yourself.
Reprogramming the Key
A key fob that is not working might just need an upgrade in battery. Because these batteries are cheap and readily available at pharmacies and home improvement stores, it's an excellent first step prior to buying an entirely new car key fob.
Alternatively, you may be able to re-program the fob by following a few basic steps. This process can vary between vehicles, so you should refer to the owner's manual and study the specific model of your vehicle. One key fob might require that the ignition switch be switched on when changing the program. Another might need the key to be removed and inserted multiple times.
The basic procedure is easy. First, make sure the new battery is securely in place. Close all doors except the driver's door. This will ensure that the new key fob communicates with the vehicle in a proper manner. Put the old key in the ignition and turn it on but don't start the engine. Press the lock button while aiming the fob towards the transmission receiver. This is usually located on the front above the mirror. Within a brief time the key will announce to the vehicle that it's programmed by triggering the doors locks or emitting the sound of a chime. This can be a tricky process, so pay attention to the timing and avoid pressing too hard the button.
If the key fob won't work after reprogramming, try using new batteries. If the issue persists then a visit to the dealer of your vehicle or a locksmith should be considered. A professional locksmith will have the tools and equipment needed to reprogram your car's fob or make a new key if it's required.
Genesky claims he is able to program newer fobs between $200 and $250, based on the model of vehicle. However, he's had to refuse customers with European models due to the fact that they don't have the costly equipment required. Fortunately, most aftermarket fobs can be programmable, but it's always recommended to consult a car dealer first to see what their price is.
A New Fob
If your key fob cannot be fixed, you could have to purchase another one. Depending on the make and model, a dealership or an auto locksmith might be able to assist. The dealership is likely to be the most expensive option for a replacement fob, but it also has the tools and software needed to program your car properly. If you are looking for a less expensive option, a number of independent locksmiths can offer you new car keys for a more affordable price.
Before you purchase an entirely new device it's recommended to consider resetting your current one. The owner's manual should outline the correct procedure for reset. It is typically a series button presses that restores the factory programming.
You should also look over your owner's guide and warranty information to see whether you are eligible for an additional key fob. If your car's warranty in good standing or you have an auto club or insurance policy that covers bumper to bumper you could qualify to receive a reimbursement for 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 peace of mind that comes with knowing that your keys fobs are in good working condition, you may prefer going to the dealership to get this service. If you're looking for a more affordable alternative, it's possible to find a locksmith that will offer the same service for less cost.
A locksmith professional is a great option if you're not comfortable doing this type of work. They are trained and equipped to replace or reprogram most types of car key fobs, and often they can accomplish the task in a short time. Additionally, locksmiths is often able to come to your home or office to do the job which can be extremely convenient for some people. They can even cut and program keys on the spot when you've lost keys, which is great for those who prefer not to leave their cars in the dark.