Renault Keys – How They Work

Renaults have a complicated system in terms of the immobiliser and keys go. This could result in replacement keys being a long drawn out process. If you don’t have access to the car and can bring it in for us to make a code using the diagnostic socket, it can be very time-consuming.


The Renault group is perhaps best recognized as a producer of buses, vans Lorries and tractors however they also make cars. The company was founded in 1899. It is a huge and well-established business with an extensive range of car models. If you lose your car keys or they are damaged, you will require a replacement quickly. Why not let us make one for you instead of waiting for your local dealer to do so and then wait longer for it to arrive? KeyNOW can help you replace your remote or smart key. KeyNOW we can replace a remote or smart key for you very quickly.

If you need a Renault Clio V, Captur 2 or New Zoe spare key we can provide you with a mechanical code number to purchase a new key through the dealer. We can also reset your Renault Kangoo Traffic or Master key.

Renault has a long history of innovation. It was the first company to have used remote central locking on a production car. This technology was invented by Paul Lipschultz for his employer Niemens who was a supplier of security components to the automotive industry. This was a major leap for the safety of cars.


The hands-free cards offered by Renault are still widely used in their vehicles despite the fact smartphones are replacing them. In fact, two out of three Renault vehicles come with hands-free cards. The use of these cards has increased in recent years. In this video, Pascaline of Renault’s products division explains the most important components of these cards and explains how they function.

Renaults come with a complicated immobiliser system, which is why it’s crucial to know the basics before trying to unlock a car with the use of a key. Some cars come with an emergency lock that is located on the handle for the passenger door that can be used in the event of a key failure or a battery running out. This is a viable option for those who aren’t able to hire a locksmith professional.

You’ll require a device such as an ultra-thin jim or pump-up to remove the key fob. If you do not have these tools, you may need to use a hammer and screwdriver to take the cylinder out.

You should be able to get through the passenger door and see an insignificant lock placed on the driver’s side panel close to the handle of the door. This is a security feature to keep people from locking themselves inside their car or accidentally stealing their neighbor’s. This is a basic but efficient security feature that will help you save time and effort when you need to quickly get into your vehicle.


Transponders are found in many modern cars to safeguard against theft of cars. These small devices, which are connected to the key fob have a chip inside and can communicate with the car once it is within range. These chips utilize a number to identify the car and key.

The chip transmits a signal to a pair coils that are fitted around the ignition barrel of the vehicle. The coils are activated with the key and transmit an electromagnetic pulse to the chip. The chip responds by sending a unique code to the car. The unique code is then used to unlock the doors and begin the engine.

A similar technology was used in military planes during the World War 2 era to aid air traffic controllers in identifying them on radar. This kind of chip code messages are still used in the aviation industry.

These systems were thought to be clone proof up until recently. This was due to the fact that there were only 74 Quadrillion (74,000,000,000,000,000) possible codes for each transponder. The technology behind these chips has been improved, and they are no longer clone proof. This has led many auto locksmiths to improve their skills by learning to read, program and write these latest kinds.


Renaults are a bit complicated in regards to key systems and immobilisers. There are two main systems that affect the method by which a replacement key is programmed to the car. The older system uses a “kill switch” that connects to one of the important car’s starter parts to disable it in the event that the correct key isn’t present. These are delicate devices that require a technician to diagnose and repair them if they malfunction.

The latest system is simpler to use. It uses advanced cryptography and rolling security codes to prevent copying the code from the ECU or key. renault car keys is the method that will be used on the replacement keys we provide.

Certain models feature rings that are unique to their vehicle and is not recognized by transponder scanners that are standard. This is a great method to avoid hotwiring and it is also very difficult to bypass with a standard key or transponder emulator. We have a specialized product dubbed the Renault Antenna Emulator (RAE) that can be used to bypass this type of immobiliser found in Renault Clio phase 2 models and some Renault commercial vehicles fitted with ID46 transponders. It replicates the operation of a key transponder that is valid within the ring antenna. It can be used to replace damaged or lost keys without the need to disassemble the ECU. It has been tested by Thatcham and approved to provide additional peace of mind for customers of motor insurance.

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