What should I do if I lose my car key?How to know

【The owner's family car knowledge】Four naked men asked for help swimming in the street and lost their car keys hidden in the bushes, the owner of the watermelon stall called the Mercedes Benz owner to get the keys, the couple lost the keys of a car on the beach and took the high-speed train to Dalian to send the keys, and the man hired a diver to salvage the lost car keys... Chinese New Year. Losing car keys has also become a peak season for emergencies. If you don't want to be the protagonist of news events, it is better to keep your car keys.

So, once the car key is lost, what should we do? Let us first learn the basic knowledge of car keys:

Car key:Tools to switch cars. Now all car keys use chips, which are magnetic chip systems. The reading coil of the car ignition lock core will read the chip of the key; the chip has fixed digital information.

remote key:The remote control key means that the door can be opened and locked remotely without inserting the key key into the keyhole. The biggest advantage is that no matter day or night, no need to detect the keyhole, it can be opened and locked remotely and conveniently.

Keyless start:The keyless start adopts radio frequency identification technology, and the door lock is automatically opened and closed by the chip in the smart card carried by the owner. That is to say, when you approach the vehicle for a certain distance, the door lock will automatically open and release the anti-theft; when you leave the vehicle , The door lock will be automatically locked and enter the anti-theft state. Generally, a vehicle equipped with a keyless entry system has a sensor button on the door handle and a key hole at the same time to prevent the smart card from being damaged or out of power, the owner can still open the door in a normal way. When the car owner enters the car, the detection system in the car will immediately recognize your smart card. After confirmation, the computer in the car will enter the working state. At this time, you only need to gently press the start button (or knob) in the car. , You can start the vehicle normally. In other words, whether inside or outside the car, the system can ensure that the system can correctly identify the driver under any circumstances.

There are two ways of keyless start:One is the button type, the ignition button is located within reach of the center console, so it is also called "one-button start", such as BMW, Mercedes-Benz, etc.; the other is the knob type, which is generally located at the original key socket, but No need to insert the car key, just turn the knob to start, such as Nissan, Mazda, etc.

Smart key start:This kind of smart key can emit infrared signals, which can open one or two car doors, luggage compartment and fuel filler cap, and can also operate the windows and sunroof of the car. The more advanced smart key is like a credit card. When the driver touches the door handle, the central lock control system starts to work and transmits a wireless inquiry signal. After the smart key card responds correctly, the car lock opens automatically. The engine will only start when the central processor senses that the key card is in the car.

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

This system uses RFID (Radio Frequency Identification) technology. Under normal circumstances, when the owner approaches the vehicle within a distance of about one 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 car owner enters the car, the in-car detection system will immediately recognize the smart card. At this time, the car can be started normally by simply pressing the start button (or knob). The car key does not need to be taken out during the whole process.

What are the intelligent functions of the smart key?

1. When approaching the car:When the driver brings the key in his pocket close to the car, the key and the car begin to exchange pre-set command information via radio. Immediately the car's shutdown system and safety system as well as the engine control system were all activated.

2. When opening the door:As soon as the driver touches the door handle, the sensor will detect this pressure, and the servo engine will open the door lock and the turn signal will flash twice. Then the seat, steering wheel and exterior mirrors will automatically adjust to the position suitable for the owner.

3. Before the car starts:When the driver depresses the brake pedal, the steering wheel lock will be opened immediately, and the start button will be released at the same time, and finally the main brake will be automatically released.

4. When getting off and leaving the vehicle: the driver must press the lock button. If the turn signal flashes once, it means that the door is safely locked. When the car is locked, the key and the car will renegotiate a new command message.

Generally speaking, there are 2 to 3 keys that come with the vehicle. The owner must keep the keys, and don't put all the keys in the same place, in case of emergency.

Tooth number of car key:The keychain of a new car is composed of 2 to 3 keys and a metal or plastic sheet. On the metal or plastic sheet, a series of numbers are usually printed. This is the tooth profile number of the key. The repair station or the manufacturer can use this tooth profile. No. Reconfigure the key for the owner.

Different functions of the key:The keys that come with the car are slightly different depending on the model. Take Shanghai Volkswagen’s Poussin as an example. The three keys are roughly the same in appearance, but in fact one is a spare key. This spare key can only open the door and Start the engine without opening the luggage compartment and glove compartment. The POLO and Passat series keys are slightly different. Although there are still 3 keys, the spare key becomes a simple plastic key mold. This key is only used to open the door and engine in an emergency. The other two keys are keys with integrated remote control function, which can be used to remotely open the car door and the luggage compartment door. Of course, some manufacturers simply add remote switches to ordinary keychains, but this kind of "grafting" suspected remote control keys may have more functions, such as providing remote whistle and miniature flashlight functions.

mechanical lock:It is the most common application and the earliest car anti-theft lock. Now it is rarely used alone, mainly in combination with electronic and chip types. Mechanical locks mainly play a role in restricting the operation of the vehicle, and can provide limited help in preventing theft, and it is difficult to resist. It usually takes tens of seconds for a car thief to open the steering wheel lock. So Lao Sang is the easiest car to be stolen.

Electronic anti-theft lock system:Electronic anti-theft lock is currently the most installed type of anti-theft lock. The main functions of the one-way electronic anti-theft system are: car door opening and closing, vibration or illegal door opening alarm, etc. There are also some brands of products that have added some functions: Electronic remote control to complete engine start, flameout, etc.

The fatal injury of the electronic anti-theft system lies in its electronic password and remote control operation method. When the car owner uses the remote control to open and close the door, the car thief hiding nearby can use the receiver or scanner to steal the radio waves or infrared rays from the remote control. After decoding, you can turn on the car's anti-theft system.

Chip-type digital anti-theft lock: The chip-type digital anti-theft lock is an anti-theft measure of the current auto manufacturer. Most cars use this anti-theft method as the original anti-theft device. The chip-type digital anti-theft device can lock the motor, circuit and oil circuit of the car, and cannot start the car without the chip key. The repetition rate of the digital code is extremely low, and the code key must be used to touch the code lock on the car to open the lock, which eliminates the ills of being scanned. At present, most of the new domestic cars have been equipped with the original chip anti-theft system.

The chip-type anti-theft can ensure that the system can correctly identify the driver under any circumstances, and can automatically identify the driver when approaching or away from the vehicle, and automatically open or close the lock; whether it is inside or outside the vehicle, it can be easily detected The location of the electronic key.

What should I do if I lose my car key unfortunately?

Solution 1: Contact the repair station to get a new key.

If you choose to equip the repair station with a new key, you need to provide the vehicle and the owner’s ID. Depending on the model, the repair station requires the owner to provide a 17-digit anti-theft password for the configuration key. This password is not a tooth number, but a password provided to the owner when buying a new car. For some models, the maintenance station provides the car manufacturer with the certificate of the vehicle and the owner. The manufacturer will query the anti-theft password of the configuration key through the database and fax it to the maintenance station. After obtaining this password, the maintenance station needs the car owner to provide the key tooth profile number to configure a new metal key. If there is no tooth profile number, the tooth profile number can be found through the database. At the same time, the maintenance station can modify the onboard computer parameters to set the lost car key as an illegal key, but only if the car cannot be started, and the lost key can still open the door.

It is reminded here that once the car key is found to be lost, even if a new key has been configured, you should still be careful not to store valuables in the car.

Solution 2: Please replace the vehicle lock directly at the repair station.

Since you choose to replace the key, there is still the risk of losing the items in the car. Therefore, changing the lock completely eliminates the risk, but the cost is much greater than the new key. Depending on the model, the locks that need to be replaced vary. Some models use the same key for the door, luggage compartment door, glove box door and fuel tank cap. If the entire vehicle lock is replaced at this time, more locks need to be replaced.

Generally speaking, the total cost of a new key is about 300 to 2,000 yuan depending on the model, and the cost of completely renewing the car lock may be four to five times that of changing the key, and it is equipped with a key to change the lock. Usually not within the scope of insurance company claims, so the cost is high.

Usually the key can be equipped within a few hours, but some high-end luxury models take a long time, because the process of keying some high-end imported cars and discarding the original key needs to be completed at the production site. The code cracking and matching level of high-end cars Higher, and the price is higher.

The key price lists and working hours of several types of high-end models are attached below for reference only:

Learn how to keep your car keys well?

1. If you want to leave the car, even for a few minutes, do not leave the key on the igniter. Be sure to turn off the car and lock the car, take off the car key, close the windows and sunroof tightly, so as not to give thieves a chance to take advantage of it. machine.

2. Don't put the spare key of the car in the car. The current car anti-theft system is generally aimed at the engine. Even if a car thief is equipped with a car key, the car door can be opened, but the engine cannot be started. The spare key can ignite the engine, so the spare key must not be placed in the car, let alone used as a common key for a long time.

3. Be careful when driving to a public place and handing it to others to park your car. It is easy for thieves to take the opportunity to prepare car keys.

4. When purchasing auto insurance, you must understand the relevant compensation rules for the theft of the vehicle, so as to prevent the loss of the vehicle after the loss of the key and the lack of evidence of the claim. However, the new key is not within the scope of the insurance company's claim, and this cost has to be paid for by the car owner.

5. Car keys should be handled gently. Anti-magnetic and waterproof: dropping the car key on the ground or getting wet can easily damage the original chip inside the car key and cause the car key to fail. In daily use, avoid violent impacts on the car keys, avoid liquids, and stay away from strong magnetic fields. Even if the key is not lost, if it is damaged, you still have to spend money to replace it.

How to solve if the key is wrongly locked in the car?

1. Find a spare key to open the door

When we buy a vehicle, there are generally no less than two original keys that come with the vehicle. One is used as a common key, and the other is commonly called a spare key. When the frequently used key is accidentally locked in the car, try to retrieve the spare key if possible. This is also the easiest and least loss method. If the spare key also has a remote control function, it is likely to be out of power if it is not used for a long time, so it is necessary to check it regularly.

2. Find an unlocking company to unlock

If you are out of town or far away from home, it is not practical to pick up the keys, so choosing an unlocking company to help unlock the locks is another way. Of course, you must choose a formal and qualified unlocking company. According to different models, the general cost is between 200 yuan and 500 yuan, and individual models will be more expensive. The unlocking time varies according to different models, and it can be completed in about a quarter of an hour if it is fast.

Find the information that the unlocking company needs to prepare:

Valid ID card: ID card, passport or household registration book; certificate that can prove the attributes of the vehicle: driving book. If the driving book is also locked in the car, you can prove it to the unlocking company after unlocking. If you don't have a driving license, you need to go to the nearby police station for filing.

3. The last resort: smash the glass to open the door.

If you are unlucky enough to lock the key in the car in a wilderness, and it is not realistic to get the key and wait for the unlocking company, I am afraid that there is only one way to smash the glass. However, in order to reduce the loss as much as possible, the price of the cheapest piece of glass should be at least 500 yuan for the windshield or sunroof, while the triangular window on the door may only cost 100 yuan or dozens of yuan.

Summarize:

An inconspicuous car key is found to be troublesome after being lost. It is time-consuming and expensive, and the entire car lock must be replaced. Therefore, a good habit in daily life can avoid this trouble.

Related recommended reading:How to correctly choose and understand antifreeze in winter? Notice to car owners https://news.16888.com/a/2013/1217/311912.htmlIt is recommended to replace special tires for vehicles below 7°C in winter. https://news.16888.com/a/2013/1218/312225.html