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How to Repair a Car Key Fob Your key fob gets jostled around a lot, so the buttons may get stuck or broken. If it is necessary, give it a good cleaning and replace the battery. Most cars use batteries that look like coins. You can buy from pharmacies, big box stores and home improvement retailers. Some models require programming equipment that is only available to dealers. Dead Battery The car key fob can make it easier to start your vehicle, and get into it. What happens if you push the button a few times, and your car doesn't respond? The most common cause for this is the battery is dead. Fortunately, the battery can be simple to replace. You can locate replacements at auto parts stores, supermarkets, and some home improvement stores. Some of the other features offered by the key fob may not work. This could be due to a mechanical issue or electrical issue or even a programming error in the car's receiver. In these cases, it's probably best to consult a professional. Thankfully, the majority of manufacturers include a key slot made of mechanical inside the fob for use in the event of a dead battery. In most cases, a cover is placed on the handle of the fob to conceal 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 once you've started the vehicle. If you own a Ford equipped with SYNC Connect, you are able to start the car using the key fob. Most SYNC Connect equipped Ford vehicles come with an additional “E-blade” within the cupholder. This key is used to push the starter button in the event that your key fob fails to start the vehicle. For the best use of this feature, make sure the battery is fully charged. You can also refer to your owner's manual for instructions on how to use it. If you're still having issues with your car after changing the key fob battery, it may be the right time to contact an expert locksmith or your dealer to get the battery replaced or repair the fob. In some instances, a new battery 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 is only possible if the circuit board and antennas have not been damaged. Damaged Buttons Through the course of its existence the car key fob's buttons are bound to be subjected to a lot wear and wear and tear. They are prone to dropping and are often sat in pockets and purses. This can cause internal components to get damaged or loose, which will cause them to not respond to your touch. A few simple steps can usually resolve this issue, however sometimes you may require taking your fob to an expert locksmith. The most frequent reason for a car keyfob not working is that the batteries are dead. These tiny coin-shaped batteries are relatively inexpensive, and it's not difficult to find them at hardware stores or large-box retailers. You can also find videos that explain how to replace the battery in your key fob on YouTube or in your owner's manual. However, it's important to know that some key fobs require a special procedure to enter the programming mode necessary to change the battery. In these cases, you will need to consult the owner's guide and/or an auto locksmith to ensure that you're following the correct procedure. car key fob repairs have left in extreme cold or hot temperatures can also cause it to cease working particularly in the event that the battery has gone out. If this happens, you will require contacting an automotive locksmith or a dealer to purchase a new fob. If key fob repairs to push the buttons on your key fob, it could be because the contacts are 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. It is possible to fix this issue by dismantling the key fob and placing a piece metallic tape over the worn out contacts. It is important to know that certain key fobs can be difficult to open and cannot be opened safely without specialized equipment that is only available at a dealership. If you try to open it with an instrument like a screwdriver or other it's likely that you'll damage the circuit board inside and incur an expensive repair bill than you might have otherwise required. Circuit Board Issues The circuit board could be the reason for your key fob not functioning in the same way it used as well. The circuit board is a small electronic chip inside the case that transmits signals to your car telling it to shut your doors, open the trunk, and even turn off your ignition. If the circuit board has been damaged, the key fob isn't able to transmit these signals. You can repair a damaged circuit board on your own if you have some technical knowledge. Begin by taking the battery off and taking the holder and rubber button assembly from the circuit board. Clean the contacts and plastic frame using rubbing alcohol and a cotton swab. This should eliminate any rust that is preventing the circuit board from transmitting signals. Then, once you've reassembled the key fob, ensure that it can enter its programming mode. Usually, this means turning it on and off repeatedly, so make sure to check your owner's manual for specific instructions. Most vehicle manufacturers also have videos online that show how to accomplish this. If you're not confident enough to complete it yourself, send your key fob to a locksmith that specializes in your vehicle's model. Some newer key fobs feature a built-in receiver that enables you to unlock your trunk and open the doors, as well as switch on your ignition and start your engine from an extended distance. They are generally more reliable and work with greater precision. If your key fob that is newer isn't working as far away as it used to it could be due to an issue with the antenna or other internal issue. If you're unable to get your key fob to function The most likely cause is a dead battery. It's cheap and simple to change. If the circuit board or buttons of the fob are damaged, it's going to need to be professionally repaired and programmed again. Most dealerships will 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 could be a nightmare. It's possible to turn your house upside down, retracing your steps and searching everywhere including in bags, drawers and under couches, and even your cat's bed. You'll eventually find it. But the best way to avoid losing your key fob is by taking preventative measures. If you've got even a little ADD or are simply forgetful, make several copies and give them to close friends and family members, so that if you lose yours, you won't spend 4 hours covered in sweat and cursing yourself for the rest of your life. The majority of cars have key fobs that let you lock and unlock your doors and, in some cases you can set off the alarm or open the trunk. Some of the more sophisticated models have even more exciting features like the ability call your car's location by pressing a button. This feature isn't available in every model, but if you have one of the cars that do it (Genesis GV60 and Hyundai Sonata are two examples) This is an awesome feature to have. If you have an extra car key fob programmed for your vehicle, you could use it in the event you lose the original. You can also talk to an automotive locksmith to have them create a new key fob that's specifically programmed for your vehicle. Talk to your dealer to see whether a replacement keyfob is available at a lower cost. If you don't have an extra alternative to start your vehicle is to contact an auto locksmith who will replace your current key fob or make an entirely new one. Dealers can also help with this, but you'll need to bring your vehicle in and some proof of ownership papers. These services are fairly inexpensive, especially when compared to the cost of a replacement key at your dealership.