Renault Keys - How They Work
Renaults come with a complex system of keys and immobilisers. This can make replacing keys very slow. It may take a long time to code your car unless you have access to it and bring it to us.
Keys
The Renault group is probably better known for its production of buses, vans Lorries and tractors, but they also make cars. It was established in 1899, and is a large and well-established business with an extensive selection of car models. You'll need a new key in the event that you lose or damage your car keys. Instead of waiting for your local main dealer to order a brand new key for you and wait for it to arrive, it delivered, why not let us handle it? We can replace your remote or smart key very quickly at KeyNOW.
We can provide the mechanical code needed to purchase an Renault Clio V spare key, Captur 2 spare key or New Zoe key from 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 utilize remote central locking in a production vehicle. renault captur key battery was developed by Paul Lipschultz for his employer Niemens who supply security components to the automotive industry. This invention was a giant leap for safety in cars.
Remotes
Renault's hands free cards are still widely used in their vehicles despite the fact smartphones appear to be replacing them. In fact, they're used in two of every three vehicles Renault sells and their use has increased in recent years. In this video Pascaline from Renault's Products Division explains how these cards function.
Renaults have an immobiliser feature which is quite complicated. It is crucial to know the basics before trying to unlock a car without keys. Certain cars have an emergency lock that is located on the handle of the door for passengers that can be used in the event of an unreliable key or battery runout. This is a viable option for those who don't wish to hire a professional locksmith.
You'll also require access to a tool such as a pump-up key or slim jim in order to dismantle the key fob and gain entry. If you don't own these tools, you might need to use an hammer and screwdriver to remove 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 next to the door handle. This is a safety measure to stop people from locking themselves inside their own vehicle or accidentally stealing a neighbor's. It's a straightforward, yet effective security measure that can help you save time and stress in the event that you need to get into your vehicle quickly.
Transponders
Many modern vehicles use transponders to guard against theft of vehicles. These tiny devices are attached to the key fob and include an electronic chip that communicates with the car when it is within the range. The chips utilize a code to identify the car and key.
The chip transmits a signal to a pair coils which are placed around the ignition barrel of the vehicle. The coils are activated once the key is within range and send a signal of electromagnetic energy to the transponder chip. The chip then responds by sending back a unique identification code to the car. The unique code is used to unlock the doors and then start the engine.
Similar technology was also used in military planes during the World War 2 era to aid air traffic controllers in identifying them on radar. This type of chip code messages are still used in the aviation industry.
These systems were believed to be clone-proof 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. However, the technology behind these chips has been improved and they are not completely replica-proof. This has led a number of locksmiths who work in autos to increase their knowledge by learning how to read and write code for these newer types of chips.
Immobilisers
The Renaults are a bit complicated in the way that they function when it comes to keys and immobilisers. There are two major mechanisms that affect how the new key is programmed into the car. The older system employs a "kill switch" to turn off a crucial part of the car's ignition mechanism if the proper key is not present. These are very delicate and require a skilled technician to identify and fix the issue if they fail.
The newer system is much easier to use. It uses advanced encryption and rolling security codes to prevent copying the code from the ECU or key. This is the code that will be used to replace keys we provide.
Some models will even use a special ring antenna which is not identified by standard transponder scanners and is specific to the vehicle. This is extremely effective in preventing hotwiring and is also extremely difficult to disable by using a standard key or an emulator for transponders. We have a special product dubbed the Renault Antenna Emulator (RAE) that can be used to circumvent this kind of immobiliser on Renault Clio phase 2 models, as well as in some Renault commercial vehicles with ID46 transponders. It works by mimicking the operation of a valid transponder within the ring antenna. It is able to be used on failed keys, or lost keys, without having to dismantle the ECU. It is tested and approved by Thatcham to give assurance to motor insurance customers.