Smart car keys urgently need to be treated warmly remind "5 do not"

In the past, we drove like this: insert the key into the door lock and open the door; sit in the car, insert the key into the power lock under the steering wheel, and turn it gently to start the car. Later, with the anti-theft lock, we can open the door without inserting the key, just press the unlock key of the anti-theft key to enter the car. Now, we can always put the key in our pocket, and when we get close to the car at a certain distance, the door lock will automatically open; entering the car, just press the start button (or knob), the car will start ignition, to achieve this This kind of function is the currently popular "keyless entry system".

working principle

A common keyless entry system, also known as an intelligent key system, is composed of a control system consisting of a transmitter, a remote control central lock control module, a driving authorization system control module, three receivers, and related wiring harnesses. The remote control and the transmitter are integrated on the car key, and the vehicle can enter the locked or unlocked state according to the signal sent by the smart key, and can even automatically close the window and sunroof.

This system uses RFID (radio frequency identification) technology. Usually, when the owner approaches the vehicle within about 1 meter, the door lock will automatically open and release the anti-theft; when leaving the vehicle, the door lock will automatically lock and enter the anti-theft state . When the owner enters the vehicle, the in-vehicle detection system will immediately recognize the smart card. At this time, the vehicle can be normally started by simply pressing the start button (or knob). The entire process does not require the key to be taken out.

Costly

Equipped with "keyless entry system" will definitely bring a certain cost increase to the vehicle. In addition, if the key is lost, the cost of re-keying is expensive. Smart keys generally include electronic keys and mechanical keys. When the electronic keys are out of power or cannot be used due to malfunctions, users can also use the original mechanical method to start the car. Once the entire smart key (including electronic keys and mechanical keys) is lost, it is necessary to A new electronic key is re-configured, and the remaining spare key will also be invalidated, and it needs to be replaced at the 4S shop. In addition, the mechanical key set for emergency has a built-in ID code. It is not possible to start the vehicle by copying the tooth part, but the tooth can be used to open the door, so if the mechanical key is lost, it is best to replace the entire car lock. It's not just the price of replacing a key.

Integrate three major functions

The keyless entry system includes three basic functions: automatic unlocking, intelligent ignition and vehicle owner identification. Some brand models also have the function of automatically closing the windows after locking the car.

Unlock automatically

The door lock is automatically opened and closed by a chip in the smart card carried by the owner. When the owner approaches the car, the key and the car begin to exchange the set command information through radio waves. Then the car's shutdown system and safety system as well as the engine control system are all activated. In other words, when you approach a certain distance from the vehicle (usually 1 meter), the door lock will automatically open and release the anti-theft; when you leave the vehicle, the door lock will automatically lock and enter the anti-theft state.

Function 2 Smart Ignition

Usually, the driver needs to insert the key into the ignition key hole of the car to start the engine. The keyless start method of the smart key makes all this easier. The function of the smart key is to enable the engine to recognize whether the operator is the owner of the vehicle, and enter the standby state before starting at any time. When the engine needs to be started, as long as the smart key is in the area that can be detected, the driver can press the start button or twist the rotation button to start the engine.

Function 3 Identify the owner

Each smart key has a unique ID code corresponding to the vehicle ID code. Even if the key is simply copied, the vehicle cannot be started without the ID code. Only when the owner enters the car,

The detection system in the car will immediately recognize your smart card, and the computer in the car will enter the working state after confirmation. At this time, simply press the start button (or knob) in the car to start the vehicle normally.

Warm reminder 5 "Do not"

Don't put it with electronic devices

Because the smart key uses low-intensity radio waves, it may not work properly in the presence of magnetic field interference. Frequently putting the smart car key and mobile phone together will inevitably cause the smart car key to malfunction, because the chip in the smart key is sometimes interfered by the frequency of the mobile phone, which may cause the remote control function of the key to temporarily fail. In addition, if the smart key receives high-intensity radio waves, it may consume battery power excessively. Therefore, do not place the smart key near electronic devices, such as TVs or personal computers.

Don't throw around

For the smart key, the most feared thing is to fall to the ground from high altitude, because most of the smart key shells are relatively strong, and the internal circuit resistance to impact is weak, and it is easy to be damaged in the event of a violent collision. In addition, the smart car key will burn the internal circuit after entering the water, and will also cause the remote control to fail. Therefore, once the key of the smart car enters the water, do not throw it vigorously with the key. This is the easiest way to let the water flow to other important lines, and do n’t use the remote control to unlock it immediately, because it may cause the circuit board to burn out. The correct way is to open the car key shell and lay it flat, and use a hair dryer to dry it, and then send it to the repair shop for inspection. Also be careful not to expose the smart key to direct high-temperature environments, such as on the dashboard or engine hood.

Don't put spare keys in the car

If the car keys are not properly stored and lost, it will bring a lot of trouble, especially the smart car keys, once lost, not only need to be rebuilt, but also need to be re-matched with the computer.

Unlike ordinary mechanical keys, smart keys are not lost due to the anti-theft technology of the entire vehicle. Simply make one and continue to use it. It is understood that each manufacturer has established a strict keyless door opening and key distribution process for its after-sales service department, so remind the owner to protect the spare key as much as possible, do not put the spare key and the current key together, and do not Put the spare key in the car.

Don't use the wrong battery

The battery life of smart car keys is about 1 year. Due to the different frequency of use of car keys, the battery consumption is also different; the use of car keys at different distances will consume different amounts of electricity. It is very prudent to change the battery of the smart car key. If an error occurs, the circuit board in the key will burn out. Before the replacement, the car mainly sees the battery replacement diagram. When disassembling the key, pay attention to the original placement of the parts and try to choose the original battery; when installing, carefully identify the positive and negative poles of the battery, do not misplace ; At the same time, pay attention to the sealing ring at the bottom of the key, do not damage it during replacement, otherwise it will burn the circuit board.

Do not touch metal objects

Many female car owners like to drop heavy ornaments on the car keys, and some male car owners even have a bunch of other keys together. As everyone knows, during bumpy jumps when the car is driving, too many falling objects on the key will cause wear on the limit elements and contact points of the electric switch through the lock core, resulting in its slack and premature damage, and over time will cause the engine to start When the power is off, the engine will stop due to power failure. What's more, if it is placed together with other keys, the key is a metal product, and the smart key may come into contact with or be covered by a metal object, and work failure may occur.