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How to Repair a Car Key Fob The key fob of yours is tossed around a lot, which means its buttons can be damaged or stuck. If necessary, you can give it a good cleaning and replace the battery. Most cars are powered by batteries that are coin-style that you can buy at big box stores, home improvement retailers and pharmacies. Certain models require programming equipment that is available only to dealers. Dead Battery The car key fob can make it easier to start your vehicle, and even get it into. What happens if you press the button a few times, but nothing happens? The most frequent reason for this is the battery is dead. The battery can be easily replaced. You can find replacements at auto parts stores, supermarkets, and some home improvement stores. However there are other features that the key fob has may not function. This could be because of an issue with the mechanical system or an electrical issue inside the car or even a malfunctioning deprogramming in the receiver of your car. In these cases, it's probably best to call a professional. Thankfully, most manufacturers still include a mechanical key slot inside the fob, which can be used in the event of an unresponsive battery. In most cases, a cover is attached to the handle of the fob in order to cover the key slot. The physical key can be placed into the slot which will allow you to unlock your door and start your vehicle. Be sure to re-insert the key fob after you start your car! If you have a Ford equipped with SYNC Connect you can also start the car using the key fob. The cupholder in the majority of Fords equipped with SYNC Connect has a backup “E blade”. This mechanical key can be used to press the starter button in the event that your key fob isn't able to start the vehicle. To make the most of this feature, ensure that the battery is fully charged. You can also consult the owner's manual to find out how to use it. If your car continues to have issues after replacing the battery on your key fob, you may need to speak with a locksmith or your dealer to get the fob or battery repaired. In certain cases it is possible to get a new battery that can be used to program the key fob with your vehicle at the dealership, or you can choose Interstate All Battery Center stores. However, this can only be done if the circuit board and antennas are not damaged. Damaged Buttons The buttons on your car key fob are likely to endure an extensive amount of wear and wear over the course of their lives. They're susceptible to droppings, and they spend a lot of time being tossed around in purses and pockets. This jolting can cause internal components to loosen or become damaged, leading to them not responding when you press them. A few simple steps can often fix this problem, but sometimes you may need to take your fob to a professional locksmith. Apart from batteries that are dead, the most common reason why a key fob for a car will not work is because it needs new batteries. key repair car , coin-shaped batteries can be found at a majority of hardware stores as well as large-box retailers. They aren't expensive. You can also find videos on YouTube and in your owner's manual which explain how to replace the battery on your key fob. It is important to know that some keyfobs need an exact procedure to enter the appropriate programming mode for changing the batteries. In such cases you'll need to refer to the owner's manual as well as a reputable auto locksmith to ensure that you're following the proper procedure. If the battery is dead, putting your key fob at extreme temperatures can cause it to stop working. In this case you'll need to contact an automotive locksmith or your dealer for a replacement fob. If you're still unable to push the buttons on your key fob, it could be due to the contacts being worn out. These contacts are rubber-like and coated with an electricity-conducting film, but they can start to wear out over time due to repeated use. You can solve this issue by disassembling the key fob and putting a piece metallic tape over the worn out contacts. It's important to remember that some key fobs can be difficult to open and cannot be opened safely without the use of specialized tools that are only accessible at a dealer. If you attempt to open it with a screwdriver, or any other tool, you may end up damaging the internal circuit board. This could lead to an expensive repair bill. Circuit Board Issues If your key fob is capable of unlocking your car's doors and start your engine, but it's not as well as it did in the past it could be a problem with the circuit board. The circuit board is a small electronic chip inside the case that transmits signals to your car, telling it whether or not to lock your doors, open the trunk, or switch off your ignition. If the circuit board has been damaged, your keyfob will not be able to send these signals. If you're a tech expert you can repair a damaged circuitboard yourself. Begin by removing the battery and separating the rubber button and holder assembly from the circuit board. Clean the plastic frame and contacts using rubbing alcohol and a cotton swab. This should eliminate any rust that blocks the circuit board to transmit signals. Once you've reassembled your key fob, check whether it's in programming mode. Usually, this requires turning it on and off several times, so be sure to consult the owner's manual for specific instructions. A lot of car manufacturers have online videos that show how to accomplish this. If you are not confident to do it, you can bring your key fob to an expert locksmith who is knowledgeable about the model of your car. Certain key fobs that are newer have a built-in receiver that allows you to unlock your trunk and open the doors, as well as turn on your ignition and start the engine from some distance. They are generally more reliable and operate over a greater range. If your key fob that is newer isn't working as far away as it did in the past it could be due to a faulty antenna or some other internal problem. If you're unable to get your key fob to function The most likely cause is the battery is dead. It's cheap and easy to replace. If the circuit board or buttons of the fob are damaged, it's going to require professional repair and reset. Many dealerships provide this service, but you can also locate a shop that is specialized in the brand of your car. Forgotten Key If you've lost your car key fob, it could be a nightmare. You can turn your home upside down retracing your steps, and looking everywhere, including in bags, drawers, under couches, and even your cat's bed. You'll eventually find it. However, the best way to prevent losing your key fob is to taking preventative measures. If you have even a hint of ADD or are just forgetful, make several copies and hand them out to your close family and friends members, so that when you lose yours you don't spend 4 hours sweating and cursing yourself for the rest of your life. Most cars have key fobs that allow you to lock and unlock your doors. You can also sometimes set off an alarm or open the trunk. However, some of the more sophisticated models come with even more exciting features, like the ability to call your car at the touch of one button. This feature isn't available in all models, but if you have one of the cars that can do it (Genesis GV60 and Hyundai Sonata are two examples) it's an amazing feature to have. The good news is that if have a spare key fob programmed to your car then you can use it to start your car in the event that you lose the original. You can also talk to an automotive locksmith and request them create an entirely new key fob that has specifically programmed for your vehicle. However, before you do this, check with your dealership to see if they can offer a replacement key fob at a lower price. If you don't have a spare key, the only method to start your car is to contact an auto locksmith to come out and cut a new key or replace your current key fob with an empty. A dealer can also do this however, you'll need have your car towed in and some proof of ownership papers. The good thing is that these services are fairly affordable, particularly when compared with buying a new key from your dealer that can cost between $200 and $250.