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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 car key immobiliser repair. Remotes that work with these remotes may stop working at the most inconvenient instances.

If you notice that your key fob not working, you can try a few quick fixes before going to the dealer. These suggestions could save you money.

Keyless Entry System

Instead of having to fiddle around with keys in your pocket or purse, you can simply stroll up to your car, press a button on your key fob, then unlock the doors and start the engine. It's a useful feature that has made the experience of driving a car more enjoyable and more secure. The keyless entry system, like any other device, can be damaged by repeated use or other factors. If you've experienced problems with yours, there are two options: visit the dealer or contact a local locksmith.

The way that a keyless entry system works is by releasing radio signals and then searching for a corresponding response from the key fob. If the system detects the signal, the vehicle's doors are not locked and the onboard computer activated. Some systems have an additional transmitter in the trunk of the car which opens it when you waggle one foot underneath it.

Each key fob comes with an unique digital identity code that's given by the manufacturer. The fob is programmed using an exclusive process known as "programming". This requires turning the ignition of the car key fob repair service repeatedly in a certain sequence, and could require pushing or pulling levers or buttons or even removing the fuse.

Once a key fob is programmed to the vehicle's keyless entry system it transmits its digital identity code, along with a function code that tells the car what to do (lock, unlock or open the trunk). The receiver in the car verifies that the transmitter is who it claims to be by using an authentication and encryption procedure. If it's authorized the computer on board unlocks the vehicle and starts the engine.

A savvy criminal could steal and use the code sent between the keyfob and vehicle. This would require a device to record the transmission then retransmit it later in the event that the system doesn't anticipate it. Most keyless entry systems use the rolling code method to combat this. This ensures that each new transmitter signal received by a car has a counter that is different from the previous one.

Batteries

A dead battery is the most common reason for a car remote to not function. It's an easy and cheap fix when you have a spare key fob on hand to replace the old one with. Most fobs are powered by watches-style batteries, which can be bought at hardware stores or big-box stores for less than $10. A quick search of the internet or your vehicle's owner's manual should give you instructions on how you can disassemble the fob that you have been using and replace the battery.

Once you've removed the battery, be careful not to disturb any antennas or circuits within the case. They're likely to be holding the key fob's program to your car's specific model, and messing with them will render it unprogrammable (and probably not work). If you must move the key fobs, be careful. Some key fobs may come with fasteners that are able to be removed and scatter key fob pieces across your living space.

The case 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 by putting the tool around the outer edge of the case like you would do when peeling an apple or orange. Don't apply too much pressure, as the case of the mobile key repair fob is typically composed of plastic and can crack or break when you exert too much force.

Be sure to ensure that the size and type of the battery to the key fob when replacing it. Some key fobs have two batteries while others need one. The wrong battery could make your remote key fob useless.

After the new battery is in place, test your key fob for the second time to see if it fixes your issue. If it doesn't then you'll need to figure out whether your key fob is suffering from an issue that's more complex that requires professional diagnosis and repair. It could be necessary to have the fob reprogrammed by an authorized dealer or purchase a new one.

Buttons

The buttons on your key fob may appear small but they're loaded with electronics. It's not a surprise that they're doomed to fail from time time. If the car key button suddenly stops working, you can usually fix it yourself.

The most frequent reason why a car remote key stops working is due to dirt or crud has been stuck between the button. To get rid of this issue, take off the batteries with care and clean each button using the help of a cotton swab which has been submerged in rubbing alcohol. Make sure to dry them completely before replacing the batteries.

It's possible that the key fob has been damaged somehow, perhaps dropped on concrete or accidentally scratched by a sharp object. If this is the case using another key fob to check its functionality might reveal that it has been damaged and has to be replaced.

The door lock sensor could have stopped working in your vehicle. This sensor is a small metal part that is attached to the key fob's door lock button. It is not common for it to fail due to weather conditions or prolonged use. Press your key button a few times without locking or unlocking your doors. This will reset the sensor.

If all else fails, you can always test the operation of the spare key by attempting to unlock and lock your doors using it. If the spare key doesn't work, you may have to call a locksmith 24 hours a day who can repair your car keys to get your Remote Car Key Repair working again.

You can reprogram your computer if your car's key fob works but doesn't lock or unlock the vehicle. If you have had the same key fob a time, it might need to be reset every few months to to work with your vehicle. It's not the ideal situation however it's much better than having to replace your remote entirely.