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How A Car Remote Entry Works

Most of the vehicles today, similar to other modern devices, are operated by a remote control. This system is designed to remotely permit or deny access to premises or automobiles by pressing a button that is usually attached in a keychain. Most modern cars today are equipped with this kind of system besides from manual entry. But how does a car remote entry really work?

A car remote entry is similar to other kinds of remote control. Pressing the lock button will lock the vehicle, while pressing the unlock button will unlock it. It works with the help of a computer in a car, broadcasting radio waves on a particular frequency. While this is now a standard safety feature in cars today, back then it was simply an innovation. Nowadays, this system implements encryption, which is a distinct digital identity code to prevent car thieves from intercepting and spoofing the signal. Some car remote entry systems are even equipped with a panic or safety alarm that will honk the horn off and on when activated. A key fob utilizes a small battery to power the transmitter. When this battery becomes weak, the working range of the fob decreases or stops working entirely.

Over the years, remote entry devices have improved greatly. Some advance remote fob can release the trunk latch, open the hood, set the alarm, open sun roof, illuminate head tail lights and even start the engine. In 1989, General Motors started to incorporate remote entry in their W-platform vehicles, the Buick Regal, Oldsmobile Cutlass Supreme and Pontiac Grand Prix.

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