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Car Key Repair – How to Fix a Dead Remote The car remotes are an excellent convenience for drivers. They allow you to unlock doors, gain access to trunks, and even start the engine. These remotes are prone to malfunction at the most inconvenient instances. If you notice that your key fob is not working, try a few simple fixes before going to the dealer. These suggestions could save you money. Keyless Entry System You don't have to look for keys in your purse or pockets. Just walk to your car, push the button on the keyfob and the doors will be opened and the engine will begin. It's a convenient feature that has made the world of driving a car more enjoyable and safer. However, just like any other device, the keyless entry system could break from repeated use or due to other factors. If you have problems with yours, you can either visit the dealer or phone an locksmith. Keyless entry systems work by sending radio signals, and then scouring for the response signal on a key fob. If the system can recognize the signal, it triggers to unlock the vehicle doors and also activate the computer onboard. Some systems include an additional receiver in the car's trunk that opens automatically when you move your foot on it. Each key fob has an unique digital identification code that is issued by the manufacturer. A specific process of technology called “programming” is used to set the fob up with the car's specific system. This involves turning on the ignition of the car repeatedly in a predetermined sequence, and could require pulling levers or buttons or even removing the fuse. Once a key fob has been programmed to the vehicle's keyless entry system it transmits its digital identification code, along with a function code that instructs the car what to do (lock in, unlock or open the trunk). The receiver on the car confirms the identity of the transmitter through an authentication and encryption process. The onboard computer will unlock the vehicle and start the engine if it's authorized. There are fears that a clever criminal could intercept the code transmitted between the key fob and the car. This would require the use of a special device that records the transmission and then transmits it again when the system doesn't anticipate it. To prevent this from happening, most keyless entry systems use the rolling code method that guarantees that each new signal from the transmitter received by the vehicle has a different counter than the previous one. Batteries A dead battery is the most common reason for car remotes not to function. It's a simple and inexpensive fix in the event that you have a spare key fob on your desk to replace the old one with. Luckily, most fobs use regular watch-style batteries that are available at big-box stores or hardware retailers for as little as $10. You can find directions to disassemble your key fob by searching the internet or in your vehicle's manual. Be cautious not to damage any of the circuits or antennas within the case after you have removed your battery. They're likely to hold the key fob's programming to your particular car and tampering with them can cause it to become unprogrammable (and likely to fail). If you must move them, do so with care, as some key fobs have fasteners that can easily open and scatter key fob pieces across your living room. key repair near me of a majority of key fobs has a single screwdriver hole. To open it, you'll need to make use of a pry tool. To begin you must push the tool along the outside edge of the case as you would when peeling an orange or apple. Be careful not to apply too much pressure, as the case of the key fob is generally composed of plastic and can crack or break when you exert too excessive force. Be sure to match the size and type of battery to the key fob when you replace it. Some fobs require two batteries, whereas others only have one. Using the wrong battery can make your remote key fob ineffective. After the new battery is in place, test your key fob once more to see if the battery has fixed your issue. If not then you'll need to figure out whether your device has an issue that's more complex that requires professional diagnosis and repair. If this is the case, you could require it to be reprogrammed by a dealer, or purchase a new key fob completely. Buttons The tiny buttons on your key fob are pretty small, and they're packed with delicate electronic components. Therefore, it's not surprising that they're doomed to fail from time to time. The good news is, when your car's key button isn't working, there's usually something you can do to fix it yourself. One of the most frequent reasons a car key remote doesn't work is due to dirt or dust that has accumulated between the buttons. To remedy this, take out the batteries carefully and scrub each button with the help of a cotton swab which has been dipped into ruby alcohol. Make sure you dry them completely before reinstalling batteries. It's possible that your key fob is damaged in any way, for example, being dropped on concrete or accidentally scratched. If this is the case, you can test the function of your key fob using another one. The door lock sensor might have stopped working in your vehicle. It's a tiny metal component that's attached to the door lock button on your key fob and it's not unusual for the sensor to break during long-term usage or exposure to harsh weather conditions. Press your key button several times without locking or unlocking your doors. This will reset the sensor. If all else fails, you can test the capabilities of a spare key by unlocking and locking your doors with it. If the spare key does not work, it could be necessary to locate an 24 hour locksmith that can offer automobile key repair in order to get your remote working again. If your car's key fob is working, but it's still not locking or unlocking the vehicle, try to reprogram your computer system. If you have had the same key fob for a time, it may need to be reprogrammed every few months to continue to work with your vehicle. This isn't the best option but it's better than having to replace your remote entirely.