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  • Writer's pictureCheetah Locksmith

How the Automotive Lock Works

The locking system in any car works such that only the authorized people are provided access to the car, and only they can unlock and lock the car whenever required. It's the only means via which the engine of the car is started and shut.

Different Locking Systems In Cars

Usually, the cars have mechanical locking systems. Each of the lid or the door were known to have an individual locking mechanism which anyone could easily access from even outside the car with the help of a key or from the inside of the car with the help of a knob. Central locking systems brought with themselves various improvements which ensured convenience and comfort. The central locking system in any car is known to have a vacuum reservoir which is in-built which is known to trigger locks on each and every door in the car when the key is turned inside a lock.

The ones normally used in today's cars are electronic locking systems. Most of them are known to combine a key with wireless or infrared remote control. This simply implies that you can easily trigger them remotely, which means that it doesn't ask for any contact between the vehicle and the key.

Central Locking Systems Components

These components are comprised in a locking system:

Actuator/ Door Lock

The latching mechanisms in a car are known to be installed directly on the door of the car. It consists of both an electric motor as well as a latch which is the one behind controlling the central locking system. The latch is the one behind closing and opening the doors. All of the door latches are usually in today's world powered by electric drives.

Handle Strip/ Door Handle

The only traditional way of opening and closing a vehicle from both outside and inside is a door handle. The door strips are usually used increasingly in modern vehicles as design elements. They can be paint-finished or chrome-plated in colour the same as that of the vehicle.


Companies usually integrate transponder inside the key bow. It is known to be the only means through which the electronic immobilizer successfully verifies whether the key inserted is the correct one. The code of the transponder is read as the key gets near the ignition lock. If the code is successfully verified and correct, the start enables signal is sent to the engine by the electronic immobilizer.

Fuel Filler Cap

The fuel tank is successfully sealed securely by the fuel filler cap. Some of them come with locks, whereas some do not. The ones with the locks are known to come with vehicles which don't have a fuel filler flap or one which doesn't lock. The ones without lock are known to be found on vehicles whose central locking systems automatically locks the fuel filler flap.


What’s the basic function of the remote controls and the keys?

That’s basically locking and unlocking the doors, fuel filler caps, luggage compartments, etc. They are also known to control:

  • Window Lifters

  • Alarm System

  • Electronic Immobilizer

  • Interior Lighting

The keys are known to comprise of two units:

  • Key Bow

  • Toothed Key Blade

The key bow is known to be home to various incrementing electronic functions like central locking system remote control.

Steering Lock

Several insurance companies set a mandatory requirement for steering locks since the year 1969.

They usually help you in case of thefts and provide you protection from it. You can easily unlock the steering column and start the engine with the help of the steering lock.

Looking for more information about how automotive locks work? Or perhaps want to get your car locks repaired? Then it’s time to contact the fastest locksmith in town!

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