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Car Key Repair – How to Fix a Dead Remote Car remotes provide a wonderful convenience for drivers. They can unlock doors, access trunks, and even start the engine. These remotes are prone to malfunction at the most inconvenient times. Before you visit the dealer, consider some quick solutions when your key fob stops working. These steps could save you money. Keyless Entry System You don't have to look for keys in your purse or pockets. Simply walk up to your car, press the button on the keyfob and the doors will unlock and the engine will get started. It's a simple function that makes driving a car more enjoyable and safe. The keyless entry system, like any other device, can be damaged through repeated use or other elements. If you are having issues with yours, you may either visit the dealer or phone an locksmith. Keyless entry systems work by sending radio signals, and then scouring for the response signal from a key fob. If the system detects the signal, the car's doors are unlocked and the onboard computer is activated. Certain systems have a second receiver on the car's trunk that will open automatically when you waggle your foot under it. Each key fob is given an individual digital identification number by the manufacturer. The fob is programmed by an exclusive process known as “programming”. This involves turning on the ignition of the vehicle several times in a specific sequence, and could require pulling buttons or levers, or removing the fuse. Once the key fob is programmed into your car's keyless system, it transmits a digital identification code and a function code that tell the car what to (lock the trunk, unlock it or open the trunk). The car's receiver verifies that the transmitter is the person it claims to be by using an authentication and encryption procedure. The computer in the car will allow the vehicle to be opened and start the engine if it's authenticated. A savvy criminal could steal and use the code transmitted between the keyfob and the vehicle. This would require the use of a special device that records the transmission, and then transmits it again when the system doesn't expect it to. Most keyless entry systems use a rolling code method to prevent this. click to read ensures that every new transmitter signal received by a vehicle has a counter value that is different from the previous one. Batteries A dead battery is the most frequent reason for the car remote to not work. It's a cheap and easy fix when you have a spare key fob on in your possession to replace the previous one with. Most fobs are powered with watch-style batteries that can be purchased at big-box stores or hardware stores for less than $10. You can find the steps to disassemble your key fob by searching the internet or in your vehicle's manual. After you've removed your battery, make sure not to disturb any antennas or circuits within the case. If you mess with them the key fob will be unprogrammable and won't function. If you need to move key fobs, take care. Some key fobs may have fasteners which can easily pop out and scatter key fob pieces all over your living space. Most key fobs come with a single hole for a screwdriver or other pry tool to open the case. However, it's best to put your tool on the outside of the case first, like you would peeling an apple or orange. Do not apply too much pressure since the case of the key fob is usually composed of plastic and is susceptible to breaking or cracking when you exert too excessive force. Be sure to match the size and style of the battery to your key fob when replacing it. Some key fobs require two batteries, while others only have one. Using the incorrect battery could render your key fob remote useless. If the issue persists it is possible to try again with your key fob after installing the new battery. If it doesn't, you'll need to determine whether your key fob is suffering from an issue that's more complex that requires professional diagnosis and repair. You may need to have your key fob reprogrammed by the dealer or purchase a new one. Buttons The buttons on your key fob are small, and are packed with delicate electronics. Therefore, it's not surprising that they're destined to fail from time to time. The good news is, in the event that your car's keypad fails to function, there's typically something you can do to fix it yourself. One of the most frequent reasons why a car key remote fails to function is due to dirt or dust that has accumulated between the buttons. To fix this, remove the batteries in a careful manner and scrub each button with an abrasive that has been dipped into rubbing alcohol. Make sure to dry them thoroughly before installing the batteries. It's also possible that the key fob was damaged in some way, possibly dropped on concrete or accidentally damaged by something sharp. If go to website is the situation, you can check your key fob's functionality by using another one. Another possibility is that the door lock sensor in your vehicle has stopped working. It's a tiny, metal component that's attached to the door lock button on your key fob, and it's not uncommon for this sensor to break after long-term use or exposure to 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 lock and unlock your doors with it. If the spare key doesn't work, it could be necessary to find an emergency locksmith who can provide car key repair to get your remote working again. If your car key button does work, and it's still not locking or unlocking the vehicle, you may try to reprogram your computer system. If you've had the same key fob for a time, it may require reprogramming every few months to continue to work with your vehicle. This isn't the best option however it's much better than having to replace your remote entirely.