Renault Keys – How They Work

Renaults have a complicated system for immobilisers and keys. This can lead to replacing keys taking a long drawn out process. If you don’t have access to the car and are able to bring it in for us to be able to code it using the diagnostic socket, it will be very time-consuming.


The Renault group is recognized as a producer of vans, buses, Lorries and tractors however they do produce cars too. It was established in 1899, and is a large and well-established business with an extensive selection of cars. You’ll need a new key in the event that you are unable to locate or damage your keys to your car. Why not let us buy 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 your 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 to order a new key from the dealer. We can also reset keys such as a Renault Kangoo, Traffic or Master key.

renault clio car key replacement has a rich history of innovation. It was the first company to use remote central locking in a production vehicle. The technology was developed by Paul Lipschultz for his employer Niemens who was a supplier of security components to the automotive industry. This invention was a major leap forward for car safety.


The hands-free cards offered by Renault are still used extensively in their vehicles, despite the fact that smartphones appear to be replacing them. In fact, two out of three Renault vehicles are equipped with hands-free card. Their usage has also increased in recent years. In this video Pascaline from Renault’s Products Division explains how these cards work.

Renaults come with an immobiliser system that is quite complex. It is crucial to know the basics before trying to unlock a car without keys. Some vehicles have an emergency lock on the handle for the passenger door that can be used in the event of a key malfunction or battery failure. This is a great option for people who don’t want to pay a locksmith.

You’ll also need to have access to a tool such as the pump-up key or slim jim in order to take the key fob off and gain entry. If you don’t have these tools, it may be necessary to make use of a screwdriver and hammer to take the cylinder out.

You should be able to walk into the passenger’s door and you will see a tiny lock that is inserted into the driver’s side panel next to the handle. This is a precautionary measure to prevent thieves from accidentally taking other vehicles or locking themselves inside their own. It’s a simple but efficient security feature that will save you time and stress when you need to get into your vehicle.


Transponders are a common feature in modern vehicles to prevent car theft. These small devices are fitted to the key fob. They contain a chip that communicates with the car when it is within range. These chips utilize a number to identify the car and key.

The chip emits signals that are received by a pair of coils fitted around the ignition barrel in the vehicle. The coils are activated with the key and transmit an electromagnetic pulse to the chip. The chip then responds by sending back an identification code unique to the car. The unique code is used to unlock the doors, and to start the engine.

Similar technology was utilized in military planes during the World War 2 era to aid air traffic controllers in identifying them on radar. This kind of chip messaging is still utilized today in the aviation industry.

For a long time the systems were thought 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 improved and they are no longer duplicate-proof. This has led to many locksmiths to upgrade their skills by learning to read, write and program these newer types.


Renaults are a bit complicated when it comes to the key systems and immobilisers. There are two major systems that influence the way the new key is programmed into the car. The older one uses a “kill switch” to turn off a crucial part of the car’s starting mechanism if the correct key is not present. These are extremely delicate and will need a skilled technician to diagnose and rectify if they fail.

The latest system is simpler to use. It employs advanced cryptography 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.

Certain models feature a ring antenna that is specific to the vehicle and cannot be detected by transponder scanners that are standard. This is extremely effective in keeping hotwiring off and is very difficult to get rid of using a standard key or a transponder emulator. We have a product called the Renault Antenna Emulator that we can use in order to disable this type of immobiliser on Renault Clio phase 2 models and on some Renault commercial vehicles equipped with ID46 Transponders. It mimics the operation of a valid transponder within the ring antenna. It is able to be used on failed keys that are lost or stolen without dismantling the ECU. It has been tested by Thatcham and approved to provide additional security for motor insurance customers.