Several locks and keys have developed that are modernized and easy to use. Some of this is advanced key, electronic key and keyless entry. A keyless entry system is an electronic lock system. It controls access to a vehicle. This system does not use any traditional mechanical key. It is controlled by keypad which is located near the driver’s door. The key has press button or numeric code option that needs to be entered to get access to the car. It is among the best safety feature for the car. The key offers standard or optional convenience. The key has an identity feature that performs identification through proximity sensor in the door. It also uses a radio pulse generator for identification which is in the key housing. This key works within a 1.5 meter area between radio pulse generator and a proximity sensor to identify the key. Functioning of the car features locking and unlocking of the car door and starting of the car.
If the driver of the car is operating the key within 1.5 meters than he can use all the function as the key. Even before reaching the car the door it will be unlocked. Some keys also feature starting of the car through keys without inserting the keys. The electronic key has radio transmitter which is the reason behind the functioning of then key. The use of such keys has increased because it doesn't require physical contact of lock with the key. The vehicle notifies that it has been locked or unlock through sound and lights that get activated for some seconds after the button is pressed.
An advanced system key function is advanced from a keyless entry system. It releases the steering of the car. This happens when ignition gets activated through the integrated wireless transponder. It happens in friction of seconds. Even if the driver does not insert the key into the ignition lock still the steering gets relased. When the steering is relased, then the driver can start the car to start/stop button. He can even street car by simply pressing the accelerator pedal. The process of locking a car and unlocking it easy and simple through advanced key. Such keys are referred by defiant manufactures. There are different advanced key, but they all function in a similar manner. The performance of the advanced key depends upon the maintenance of user and brand of the company. Some examples of advanced key are Audi and Volkswagen has advanced key, BMW has comfort access key, Hindi has Proximity key Mercedes-Benz and Toyota have a smart key system. Mercedes-Benz have Smart Key integrated Keyless Go whereas Mitsubishi Motors have Fast Key.