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Car Key Repair – How to Fix a Dead Remote Car remotes are a great convenience for drivers. They can unlock doors, open trunks, and even start the engine. These remotes can stop working at the most inconvenient of moments. Before you head to the dealer, you can try a few quick solutions in case your key fob isn't working. These suggestions could save you money. Keyless Entry System Instead of having to fiddle around with keys in your pocket or purse instead, walk up to your car, press a button on the key fob, then unlock the doors and start the engine. It's a simple function that makes driving a car more relaxing and secure. But just like any device it's possible that the keyless entry system could break from repeated use or because of other factors. If you've had issues with yours, you have two options: Visit the dealer or contact an emergency locksmith in your area. Keyless entry systems operate by sending radio signals and then searching for a response signal from the key fob. If the system is able to recognize the signal, the vehicle's doors are not locked and the onboard computer is activated. Certain systems have another transmitter located in the trunk of the car that can be opened when you put a foot under it. Each key fob is given a unique digital identification code by the manufacturer. A specific process of technology called “programming” is used to set the fob up with a specific car's system. This involves turning on the ignition of the car several times in a specific sequence, and could require pushing or pulling levers or buttons or removing the fuse. When a key fob is programmed to your car's keyless entry system, it transmits the digital identity code along with a function code that instructs the car what to do (lock, unlock or open the trunk). The receiver in the car confirms that the transmitter is the person it claims to be using an authentication and encryption process. If it's authorized the onboard computer unlocks the vehicle and begins the engine. A skilled criminal could snoop and use the code sent between the keyfob and the vehicle. This will require an instrument that records the transmission, and then retransmits it when the system doesn't anticipate it to. To help combat this issue, the majority of keyless entry systems rely on rolling code, which ensures that each new transmitter signal received by the car has a different counter value than the previous one. Batteries The most common cause of a car remote key fob not working is an inoperative battery. If you have an extra key fob it's a cheap and easy fix. Fortunately, the majority of fobs have standard watch-style batteries that are available at hardware stores or big-box retailers for less than $10. A quick search on the internet or in your vehicle's owner's manual will provide directions on how you can disassemble the fob that you have been using and replace the battery. After you've removed the battery, be sure not to damage any antennas or circuits within the case. They are likely holding the key fob's program to your specific car, and messing with them will make it unprogrammable (and likely to fail). If you need to move key fobs, take care. Certain key fobs might have fasteners which can easily be removed and scatter key fob pieces across your living space. The majority of key fobs have one hole that allows the screwdriver or another pry tool to open the case, but it's a good idea use your tool to wedge it around the outside of the case first, as if you were peeling an orange or apple. Don't apply too much pressure, since the case of the fob is usually constructed of plastic and could crack or break if you apply too much pressure to it. When you're ready for replacing the battery, be sure to match its size and type to your key fob. Certain fobs require two batteries, whereas others have just one, and the wrong battery can quickly make your remote key fob ineffective. After the new battery has been put installed, test your key fob again to see if it fixes your problem. If remote car key repair near me doesn't work then you'll have to determine if the fob is experiencing something more complicated that requires professional diagnosis. You may have to have the fob reprogrammed at the dealer or purchase an entirely new one. Buttons The tiny buttons on your key fob are pretty small, and are packed with delicate electronics. So it's not too surprising that they're likely to fail from time time. If the car key button suddenly stops working, you can generally fix it yourself. One of the most common reasons that a car key remote fails to function is due to dirt or dust that has become lodged between the buttons. To fix this, remove the batteries carefully and scrub each button with an abrasive that is dipped in the rubbing alcohol. Be sure to dry them completely before replacing the batteries. It's possible that your key fob is damaged in some way, like being dropped on concrete or accidentally scratched. If this is the scenario, you can test the functionality of your key fob by using a different one. The door lock sensor could have been unable to function 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 common for this sensor to break following prolonged 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 could always check the functioning of a spare key by trying to open and close your doors with it. If the spare key does not work, it could be necessary to locate an emergency locksmith who can provide automobile key repair in order to get your remote working again. You can change the settings on your computer if your car key fob works however it does not lock or unlock the vehicle. Be aware that if you've used the same key fob for some time, it's going to need to be programmed each few months to ensure it remains in sync with your vehicle. This isn't the best option but it's better than having to replace your remote completely.