What Does Keyless Entry System Mean?
4 Answers
Keyless entry system means that vehicles equipped with this system will automatically unlock the doors and deactivate the anti-theft alarm when the key fob approaches the vehicle body. The following are the functions of a keyless entry system: Auto-lock Function: When the key fob moves 3-5 meters away from the vehicle body, the doors will automatically lock and the anti-theft alarm will be activated. At this time, the turn signal will flash once and the horn will sound a short beep. Wireless Remote Control Function: Includes remote locking, remote unlocking, and vehicle locating function. Anti-theft Alarm Function: Once the anti-theft system is triggered, it must cut off the starting circuit and fuel supply, which can only be restored after the anti-theft system is deactivated.
As a tech enthusiast, I can't go back after experiencing the keyless entry system! It essentially upgrades the traditional mechanical key to a smart proximity key. With the key in your pocket or bag, simply grasp the door handle as you approach the car, and it automatically unlocks. The principle relies on sensors on the vehicle body communicating with the chip inside the key. The most convenient part is not even needing to take out the key to lock - just touch the indentation on the door handle with the back of your hand. This feature is a lifesaver when carrying items in the rain, eliminating the need to rummage for keys. However, the system fails when the key battery dies, so I make it a habit to replace the battery every two years.
As an automotive sales consultant, I demonstrate this feature to customers every day. The keyless entry system allows you to completely eliminate the hassle of taking out keys. Simply carry the key and approach within 1.5 meters of the vehicle, then lightly touch the door sensor area to unlock. When you walk away, the system automatically locks and folds the mirrors as a visual confirmation. More secure than traditional keys, it employs dynamic encryption technology where each key signal is unique, providing superior anti-theft protection. However, be careful not to leave spare keys in the trunk - you'll need the mechanical key if the system electronically locks itself out. Most models can also link with seat memory functions, automatically adjusting the driver's seat position upon unlocking.
From an automotive electronics engineer's perspective, this system operates via low-frequency bidirectional communication. When the owner approaches, vehicle antennas search for the key and only unlock after verifying the encrypted signal's legitimacy. Continuous bidirectional authentication between key and vehicle makes it far more secure than mechanical locks. Field tests show sensing distance is affected by metal interference - placing phones and keys in the same pocket may cause failure. During my classic car retrofit, I discovered pre-wired harness interfaces for the system, with aftermarket installation costing around ¥2000. Repair shops frequently encounter water damage cases - high-pressure car wash spray directly hitting door handle sensors often causes malfunctions.
