Renault Keys – How They Work

Renaults use a rather complex system as far as the immobiliser and keys are concerned. This could result in keys replacement being a lengthy drawn out process. Unless you have access to the car and can bring it in for us to make a code using the diagnostic socket, it will be a very lengthy.


The Renault Group is better known for its buses, vans and tractors, however they also make cars. It is a well-established business which was established in 1899. They have a wide assortment of car models. You’ll need a new key in the event that you are unable to locate or damage your keys to your car. Rather than waiting for your local main dealer to order a new one for you, only to wait even longer to have it arrive, why not let us take care of it? KeyNOW can help you replace your remote or smart key. KeyNOW we can replace your remote or smart key for you quickly.

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

renault trafic key replacement has a long and rich history of innovation. It was the first company to have used remote central locking on a production vehicle. This technology was invented by Paul Lipschultz for his employer Niemens which is a manufacturer of security components to the automotive industry. This breakthrough was a huge leap forward for car safety.


The hands-free cards of Renault are still widely used in their vehicles, despite the fact that smartphones are replacing them. In fact, they’re present in the majority of vehicles Renault sells and their usage 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 work.

Renaults have a surprisingly complex immobiliser system, so it’s important to understand the basics before you attempt to unlock your car without the use of a key. Some cars will have an emergency lock fitted to the handle of the passenger door that can be used if the keys stop working or the batteries are out. This is a great option for those who don’t want to pay a locksmith.

You’ll require a device such as an ultra-thin jim or pump-up if you want to remove the key fob. If you don’t own these tools, you may have to use a hammer and screwdriver in order to take off the cylinder.

You will be able to step to the passenger side and you will see an insignificant lock placed on the driver’s side panel near the door handle. This is a precautionary measure to stop people from stealing another vehicle or locking themselves inside their own. This is a simple but effective security feature that can make life easier when you need to quickly get into your vehicle.


Transponders are installed on many modern vehicles to guard against theft of cars. These tiny devices, which are connected to the key fob, contain a chip that communicates with the car when it is within range. These chips employ a unique code to identify the key and then tell it which vehicle it is paired with.

The chip sends an electronic signal to a pair of coils that are positioned around the ignition barrel of the vehicle. The coils are activated with the key and send a pulse electromagnetic energy to the chip. The chip responds by sending a unique identification to the car. The unique code is used to unlock the doors and then start the engine.

In World War 2, a similar technology was utilized to aid air traffic control detect military aircrafts using radar. This type of chip messages are still used in the aviation industry.

For a long time they were believed to be clone-proof. 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 was upgraded, and they are no longer replicable. This has prompted a lot of auto locksmiths to upskill their skills by learning to read and write the more advanced chips.


The Renault isn’t the most straightforward in the area of immobilisers and key systems. There are two main systems that influence the way a new key is programmed into the car. The older system employs a “kill switch” to turn off a crucial component of the car’s start-up mechanism if the correct key is not present. They are very delicate and will need an experienced technician to determine and correct the issue if they fail.

The newer system is much simpler to use. It utilizes rolling security code and advanced cryptography to thwart copying of the code from the key or ECU. This is the code that will be used to replace keys we supply.

Certain models feature an earpiece antenna that is specific to the vehicle and is not detected by standard transponder scanners. This is very effective at blocking hotwiring, and is very hard to bypass using a standard keys or a transponder emulator. We have a specific product called the Renault Antenna Emulator (RAE) that can be used to disable this kind of immobiliser on Renault Clio phase 2 models and some Renault commercial vehicles that are equipped with ID46 transponders. It mimics the operation of a functioning key transponder within the ring antenna. It can be used to replace damaged or lost keys without the need to disassemble the ECU. It has been approved and tested by Thatcham in order to provide further security to motor insurance customers.

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