Renault Keys - How They Work
Renaults have a complicated system of immobilisers and keys. This could result in keys replacement being a lengthy drawn out process. It may take a long time to code the car if you have access to it and can bring it to us.
Keys
The Renault Group is primarily known for its buses, vans and tractors, but they also manufacture cars. It is a reputable company which was established in 1899. They have a wide variety of car models. You will need a new key if you are unable to locate or damage your car keys. Why not let us make one for you instead of waiting for your local dealer to make the order and then wait longer for it to arrive? We can replace your smart key or remote fast by calling KeyNOW.
If you need a Renault Clio V, Captur 2 or New Zoe spare key we can provide you with a mechanical code number to order a new key from the dealer. We can also reset your Renault Kangoo Traffic or Master key.
Renault has a long tradition of innovation. It was the first company to implement remote central locking in production vehicles. Paul Lipschultz invented this technology for Niemens an automotive manufacturer of security components. This invention was a major leap forward in car safety.
Remotes
Despite smartphones seeming to be close to replacing their hands-free cards, the hand-free cards from Renault are still used extensively in their vehicles. In fact, two of three Renault vehicles are equipped with hands-free cards. Their usage has also increased in recent years. In this video Pascaline from the division of Products at Renault describes how these cards work.
Renaults have a surprisingly complex immobiliser system, which is why it's important to be aware of the basics before trying to unlock a car without keys. Some cars have an emergency lock on the handle of the door for passengers that can be used in the event of an unreliable key or battery runout. This is an excellent option for those who do not want to hire a locksmith.
You'll require a tool such as an a-slim jim or pump-up if you want to remove the key fob. If you don't own these tools, you might need to use a hammer and screwdriver in order to take off the key fob.
You should be able to get to the passenger side and you will see a small lock inserted into the side panel of the driver next to the door handle. This is a precautionary measure to prevent people from stealing another vehicle or locking themselves into their own. This is a simple, but efficient security feature that will help you save time and effort in the event that you need to get into your vehicle.
Transponders
A lot of modern cars have transponders to deter theft of cars. renault key battery change are attached to the key fob and include an electronic chip that communicates with the car when it is within the range. These chips utilize a number to identify the car and key.
The chip transmits a signal that is detected by coils that are positioned around the barrels of ignition inside the vehicle. The coils activate when the key is within reach and transmit a pulse electromagnetic energy to the transponder chip. The chip responds by sending a unique identifier to the car. The unique code will be used to unlock doors and start the car.
Similar technology was also used in military planes during the World War 2 era to help air traffic controllers identify them on radar. The aviation industry still utilizes this type of chip message.
In the past the systems were believed to be unclone-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 clone-proof. This has prompted a lot of auto locksmiths to upgrade their skills by learning to read and write code for these newer chips.

Immobilisers
The Renaults are a bit complex in how they operate when it comes to their immobilisers as well as keys. There are two major systems that affect the way that a replacement key will be programmed into the car. The older system utilizes an "kill switch" that connects to one of the important car starting parts in order to disable it if the right key is not present. These are delicate devices that require a technician to assess and repair them if they malfunction.
The newer system is easier to use. It uses rolling security codes and advanced cryptography in order to stop copying of the code from the key or ECU. This is the code that will be used to replace keys that we supply.
Certain models have a ring antenna that is specific to their vehicle and isn't detected by standard transponder scanners. This is extremely effective in preventing hotwiring and is also very hard to bypass using a standard keys or an emulator for transponders. We have a product dubbed the Renault Antenna Emulator that we can use to bypass this immobiliser on Renault Clio phase two models and on some Renault commercial vehicle fitted with ID46 Transponders. It emulates the operation of a valid key transponder within the ring antenna. It can be used to replace damaged or lost keys without removing the ECU. It has been tested and approved by Thatcham to give peace of mind to motor insurance customers.