A Remote Keyless System also known as keyless entry is a technology that allows car owners lock and unlock the car doors and sometimes start the engine without using a key.
A radio frequency signal is being send to the receiver unit inside the car when a button is pressed on the key fob to lock unlock and start the engine.
The History of Remote Keyless Systems
The origin of remote keyless systems can be traced back to the early 1980s and the first systems used infrared signals and were introduced by luxury cars.
These early systems had some limitations such as the requirement of a direct line of sight between the remote and the receiver.
The technology evolved quickly and by the late 1980s radio frequency systems replaced infrared systems and significantly improved the range a remote keyless entry could preform.
This transition marked as a very important moment in automotive technology which made the foundation for the advanced keyless entry systems we see today.
How Does a Remote Keyless System Operate?
When you press a button on your car key fob it sends a coded radio signal to the receiver inside your car and if the signal matches on both sides the car performs the action you requested like unlocking the doors.
This system relies on encrypted signals to prevent unauthorized access and some systems also support proximity based operations where the car unlocks automatically when the owner approaches.
What are the disadvantages of keyless entry?
While offering lots of convenience Keyless entry systems come with some risks as well and there are some issues like:
Security Risks
Keyless entry systems can be hacked through techniques like signal amplification and relay attacks where thieves can intercept and duplicate the signal from a key fob to unlock and start a car without physical access to the key.
Dependence on Batteries
Keyless entry fobs rely on batteries which can die unexpectedly and potentially lock you out of the car.
Expensive Replacement
Keyless entry fobs are more expensive to replace than traditional keys because of their advanced technology and the need for programming.
Unintentionally Pressing
Sometimes when the key fob’s buttons are unintentionally pressed the car is accidentally open up without noticing which can put your car in a risk of breaking in.
Signal Interference
External radio wave interference from other devices can sometimes prevent your fob from working properly. Many car owners have experienced difficulties in opening their car because of this problem.
