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How to Repair a Car Key Fob The key fob is jostled around a lot, which means the buttons may be damaged or stuck. Try giving it a once-over and then swapping the battery, if necessary. Most cars use the coin-style battery, which you can purchase at pharmacies or big box stores as well as home improvement stores. Certain models require programming equipment that is only available to dealers. Dead Battery The car key fob makes it easier to start your vehicle, and then get it started. What happens if you press the button a few times, and your car isn't responding? The most common cause for this is an unresponsive battery. The battery is easily replaceable. You can locate replacements at auto parts stores, supermarkets, and some home improvement centers. However certain other features that the key fob provides might not function. It could be due to mechanical issues or an electrical problem inside the vehicle or even a malfunctioning deprogramming in the car's receiver. In these situations, it's probably best to contact an expert. Most manufacturers have a mechanical slot in the fob to be used in case of a dead cell. In most cases, a cover will be attached to the handle of the fob in order to cover the key slot. You can insert the physical key into the slot to unlock your doors and then start your vehicle. Make sure to insert the key fob back into the slot after you have started the car. If you own a Ford with SYNC Connect, you are able to start the car using the key fob. The cupholder of most Fords with SYNC Connect has a backup “E blade”. This is a mechanical key that can be used to press the starter button should your key fob not be able to start the car. For the best use of this feature, ensure that the battery is fully charged. You can also consult the owner's manual to learn the best way to use it. If you're having problems with your car after replacing the battery on your key fob, it may be time to call an expert locksmith or your dealer to have the battery replaced or repair the fob. In some instances the new battery could be used to program the key fob using your car at the dealership, or you can choose Interstate All Battery Center stores. However, this is only possible when the circuit board and antennas are not damaged. Damaged Buttons Over the course of time the car key fob's buttons are likely to undergo a lot wear and tear. car key repair cost are susceptible to being dropped and are often sat in purses and pockets. The jolting could cause internal components to become loose or damaged, leading to them not responding when you press them. This issue can be solved by following a few steps, but you may be required to speak with a locksmith. Aside from a dead battery The most frequent reason a car key fob can't function is because it requires new batteries. These little coin-shaped batteries are quite affordable and it's easy to find them at hardware stores or big-box retailers. You can also find videos on YouTube and in the owner's manual of your device that explain how to replace the battery in your key fob. It is important to know that some keyfobs need a specific procedure to enter the necessary programming mode for changing the batteries. In these cases you'll need to refer to your owner's manual and/or a reputable auto locksmith to make sure you're following the correct procedure. If the battery is not working, leaving your key fob exposed to extreme temperatures can cause it to stop working. In this instance you'll have to talk to an automotive locksmith or your dealer to obtain the replacement fob. If you are still unable to press 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 remedy this issue by taking apart the key fob, and then placing an aluminum strip over the contacts that are worn out. It is important to know that some key fobs can be extremely difficult to open and can't be opened safely without specialized equipment that is only available at a dealership. If you attempt to open it with a screwdriver, or any other tool, you could end in causing damage to the internal circuit board. This could result in a much more expensive repair bill. Circuit Board Issues The circuit board could be the cause of your key fob not functioning as well as it used as well. The circuit board is an electronic chip within the case. It sends signals to the car that tell it if you wish to close the doors, lock the trunk, or turn off the ignition. If the circuit board is damaged the key fob won't be able transmit these signals. You can repair the damaged circuit board by yourself if you have some technical know-how. Begin by taking the battery off and separating the holder and rubber button assembly from the circuit board. Clean the contacts and plastic frame with rubbing alcohol and a cotton swab. This should eliminate any rust that blocks the circuit board from sending signals. After you've assembled the key fob, be sure it can enter its programming mode. Go through the owner's manual to find instructions. A lot of car manufacturers have online videos that explain how to do it. If car key repair cost 're not sure to do this and you are not sure how, you can bring your key fob to an expert locksmith who is knowledgeable about the model of your car. Some of the newer key fobs come with a receiver built in that lets you unlock your trunk, open your doors and turn on your ignition from an extended distance. In general, they are more reliable and work over a greater range. If your latest key fob isn't functioning as far as it did previously it could be due to an antenna that is not working properly or other internal issue. If you're having trouble getting your key fob to work The most likely cause is the battery is dead. It's inexpensive and easy to replace. If the circuit board or buttons of the fob are damaged, they will need to be professionally repaired and reset. Most dealerships provide this service but you can also find a shop that specializes in your car's brand. Forgotten Key When you've lost your car keys fob, it's a nightmare. You could turn your home upside down, retracing your steps and searching all over, including in bags, drawers or under couches, and even under your cat's bed. You'll eventually find it. Prevention is the best way to ensure that you don't lose your key fob. If you're prone to forgetfulness or even a touch of ADD, make several copies and give these to your family and acquaintances so that you don't be shivering and wailing for four hours if you lose your key fob. The majority of cars have key fobs that let you lock and unlock your doors and sometimes, set off the alarm or open the trunk. But a few of the more advanced models have even cooler features, such as the capability to summon your car with the press of one button. This feature isn't available on all models, but if your car is one of those that can be controlled – the Genesis GV60 or Hyundai Sonata for instance You're in good hands. The good thing is that if you have a spare key fob that's programmed to your car then you can use it to start your vehicle in the event that you lose the original. You can also talk to an automotive locksmith and have them create a new key fob that's been programmed to your specific vehicle. Contact your dealer to see whether a replacement keyfob might be available at a lower price. If you don't have an extra key the only way to start your car is to contact an auto locksmith to come out and make a new key or replace your current key fob with a blank. Dealers can also help with this, but you'll need to bring your vehicle in along with documents to prove ownership. car key repair cost are quite affordable, especially when compared to the cost of a replacement key at the dealership.