Car Key Fob Repairs
Key fobs today do a lot more than unlock and start cars. However, the added complexity could cause expensive repair costs 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, that can be replaced at home. You might find that a simple reset will bring your fob back to life.
Battery Replacement
A dead battery is the main reason for the fob's key not working. This is a simple repair, and is worth a try before you decide to spend money on a new key fob. Take your car to a local auto parts store or a hardware retailer that carries button cell batteries and pick up a replacement. You can also refer to your owner's manual (or in the event that 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.
Most fobs come with two halves that snap togetheryou'll have to gently pry the sides apart to get to the battery. It's usually a screwdriver or another tool that has a flat, thin blade. You can put your tool into a notch on the bottom of the key fob. It is also advisable to keep an eye out for small pieces that may come loose while you work.
When you have your new battery, you can insert it the same way that you removed the old one. The positive (+) side should be facing the buttons and the reverse (-) the markings on the battery compartment.
Push a button to test the fob. If it fails, it could be a problem in your car that needs to be fixed or replaced by a specialist.
Some key fobs are difficult to open, and the contacts may be brittle and easily corroded. In these instances the best solution is to consult a car specialist or dealer. When replacing a battery, be gentle and follow the owner's manual. You might be able locate a comparable battery at a discounter or a big-box retailer, but you'll need to consult your owner's manual to be sure that it matches your car.

Replace the internal key
To prevent theft, most key fobs come with an internal mechanical key that is hidden within. When the battery in a fob dies, a blank key is left behind, which can be used to open trunks and doors. In certain cases it is possible to start certain vehicles. Many people don't realize this however, they can save themselves from a trip to the dealer by simply replacing the fob battery. The majority of modern fobs utilize flat-watch-style batteries which can be found at hardware stores and auto parts shops. Choosing the right type of battery is essential, however. The wrong type can damage the circuitry, causing the fob's failure earlier.
If the problem continues to persist after replacing the battery, it could be a sign that something else is wrong with your vehicle. If you have an owner's manual and you're not sure, try to determine if there is a reset option available to restore the fob's factory programming. If that doesn't help then you'll need to go to a dealership or an independent shop that is specialized in vehicle security systems and fob programming.
Fobs could also fail due to malfunctioning transmitter receivers. love it are usually built into the dashboard or close to the steering wheel, and transmit signals that allow you to open and start your car with the fob. You may need to get closer to the car in order to get it to work.
It might be necessary for a professional to open the case of the fob to replace the transmitter. A simple screwdriver is enough to accomplish the task, but some fobs have complicated release mechanisms that require a specific tool or specialized equipment that is available only at a dealership. It's best to have a qualified mechanic handle this job to ensure you don't accidentally break the fob or cause injury to yourself.
Reprogramming the Key
A key fob that is not working could just require an upgrade in battery. Because they are cheap and readily available in pharmacies and home improvement stores, it's the ideal first step before buying a new car key fob.
You may also be able to re-program the fob by following the steps. The procedure varies for different vehicle manufacturers, so it is important to read the owner's manual and research the specifics of your model. For instance one key fob could require that the ignition be on while reprogramming it. Another may require the key to be removed and inserted several times.
The procedure is easy. First, make sure that the new battery is in place. Close all doors, with the exception of the driver's door. This will ensure that the new fob is communicating with the vehicle properly. Place the old key in the ignition, turn it on, but don't start the engine. Next press the lock button on the fob while looking at the transmission receiver, which is usually situated on the front of the vehicle above the mirror. Within a short time frame the key will signal to the vehicle that it's programmed by cycling the doors' locks or generating an emitted sound. This can be a difficult process, so it's important to pay attention to the timing and don't over-press the key button.
If the key fob still does not work Try reprogramming it with fresh batteries. If the issue isn't resolved then a visit to your dealer for your car or locksmiths should be considered. A professional will have the tools and programming equipment necessary to re-program your car's fob or clone the key if required.
Genesky says he can usually program newer fobs for around $200 to $250, based on the vehicle. Genesky has been denied European models rejected because they don't have the equipment needed. Luckily, the majority of aftermarket fobs can be programmed but it's always best to talk to a car dealer first to find out what the cost is.
How do I get a brand new fob
If your key fob can't be repaired, you may need to buy an entirely new one. Depending on the brand and model, a dealership or an auto locksmith might 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 needed to program your car properly. Numerous locksmiths who are independent provide a new car key fob for the lower cost.
It's a good idea to attempt to reset the fob you have before you rush out to buy another one. Your owner's manual should outline the correct procedure for reset that is typically the pushing of a button that reset the original programming.
It is also a good idea to review the owner's manual and warranty information before deciding the best place to get the replacement of your key fob. If your car is still under warranty, or you have a car insurance policy or auto club membership that includes bumper-to-bumper coverage, you may be eligible for reimbursement for the cost of a new fob.
Finding a fob is simple enough, but finding the right location to do it can be tricky. If you have a relatively new car and want the peace of mind that comes with knowing that your key fobs are in good order, you may prefer going to the dealership to get this service. If you're looking for a more affordable alternative, it is possible to find a locksmith that will provide the same service at a lower price.
If you're not confident handling this kind of work yourself, a professional locksmith may be a great option. They are equipped and trained to change or reprogram car key fobs of all kinds and do it quickly. A locksmith can also visit your office or home which is convenient for many people. They can even cut and program keys on-site in case you've lost them, which is ideal for those who prefer not to leave their cars unattended.