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Types of Truck Keys Knowing which type of key you have will make it easier to find a replacement. Here are the different types of keys along with their functions. This key appears like any other key, however it is equipped with an electronic chip that can prevent theft of vehicles. The chip communicates with the vehicle to start it. Transponder Keys Transponder keys resemble keys made of metal, however they come with caps made of plastic, which house the transponder. GM's Circle Plus and PK3 keys are two examples of this kind of key. These are the keys most people use in their cars. They are able to start the car and unlock the door, but they cannot operate other features (like the trunk release) that require a mechanical keys. Transponder keys can also be programmed to work with an FOB. This is a great way to provide additional security. Modern car transponder keys contain an embedded microchip which transmits a signal the system of the vehicle. The chip has a serial number that matches the car's immobilizer system. This chip blocks any unauthorized attempts at starting the car, and protects your car from theft. These keys are a fantastic alternative to traditional locks, despite a few drawbacks. Many car makers have employed them as part of their anti-theft technology to reduce theft of vehicles. In the 1990s, auto insurance companies pressured car manufacturers to develop more efficient anti-theft systems. The result was the widespread use of transponder keys. This technology is found in most vehicles that are sold today and has aided in reducing car thefts. Transponder keys are more difficult to copy than traditional locks. The internal microchips of these keys are able to generate unique codes. Duplicate transponder keys won't work to start the vehicle's engine, so thieves are discouraged from trying this tactic. The only issue with these keys is that the batteries eventually die and require replacement by an expert locksmith. A locksmith can replace the battery, and reset the internal memory of the key to restore its functionality. If the transponder signal of your car is not working or responsive the battery in your key is failing. This could also indicate a problem with the immobilizer mechanism, so you will need to contact your local locksmith for assistance in resolving the problem. Master Keys Master keys are key holders that open multiple locks within one set. These key holders also be equipped with sub-master keys or supplementary keys that open locks for a specific purpose. Master key systems are perfect for commercial buildings such as office buildings, malls and shopping centers, hospitals and schools and apartment complexes that have multiple tenants. Master key systems typically comprise pin tumbler locks. When a master key is put into the lock it pushes the pin pair up to various levels until the point where the key is positioned against the shear line. The key's cuts must be in line with the cutouts on the lock's cylinder or plug. If the correct key is used, the shear line will be cut and the lock will then open. If the master key is AA1, as an example, it will operate any doors that are assigned to AA1. This includes the door lock that opens the gas storage area and the main entry door. This will not allow access to any doors associated with the grandmaster key or great grandmaster key. This is a great method to ensure that there are no security gaps. A master key holder can have as many sub-master keys or as many as they want. Sub-master keys can be used to access specific areas, departments or facilities and are a great method to limit access within the campus or building. In a school example the principal could have a sub-master key that only opens the front doors and classroom doors of her school. This gives her all the security she requires, while still allowing access to staff members. They're not only useful, but they could also be a crucial component of your security plan. They should be handled with care, as if they are lost or stolen they could cause serious issues. A local locksmith who is reliable can help you set up a master key that is secure and teach your staff how to secure it. Today, there are even non-physical master keys that can open a variety locks using electronic systems such as RFID, Bluetooth or keypad opening. Fob Keys Fob keys can be used to control various systems. These include garage door openers computer systems, access control for apartments, security cameras, restricted zones, and even car gates. These systems are more expensive and complex than traditional lock-and key systems, however, they offer many advantages for both the owners and tenants. When you press a button on your fob, it broadcasts an audio signal that has a specific code embedded within it. The code is detected by a receiver in your vehicle and used to perform the desired function, such as unlocking the doors or turning on the ignition. Fobs can also be integrated with a range of IoT devices, including smart home systems and smartwatches. Most newer car models include fobs as standard equipment. Some older cars still require an ignition key to start the car. There are also aftermarket fobs available, but they may only function in a limited way. It's important to consult the owner's manual of your specific car model for instructions on how to program and re-sync your fob. The fobs can be copied. This is a possibility when well-meaning people create copies for themselves to keep as an extra or by criminals looking to take your vehicle. Cloning is the process of making copies of your fob that can be used to gain access to your vehicle, and it's important to be aware of this should you decide to purchase one. A locksmith can typically replace or reprogram your fob. They can also cut you a standard key however this is usually more expensive than purchasing an entirely new one from a dealership. Many locksmiths do not have the necessary programming equipment to prepare a replacement for specific models of vehicles which is why you'll need to locate a service or dealer that has. Certain fobs are self-programmable with an instrument that resets the receiver however others require an action sequence to enter programming mode. It's important to follow these instructions carefully to avoid causing damage or other issues with your car. Remote Keys While they do have the defining features of the traditional metal key with a head and a blade remote keys are designed more for convenience rather than security. They can lock and unlock your car by pressing an arrow, and often allow you to remotely start or honk the engine (depending on the model). A car's computer confirms that the ID number projected from the key fob is accurate as is the unique shape that is etched into a metal key. This stops unauthorized people from opening your door or launching your vehicle. The system also utilizes rolling codes so the code is constantly changing which makes it very difficult for thieves to use stolen keys to gain access to your vehicle. There are thekeylab.co.uk of digital keys that can be connected to a smartphone. These digital keys use Near Field Communication or low-power Bluetooth to communicate with your car. This allows you to share your digital key with a delivery man for a set time or to lend someone your vehicle without having to give them the physical key. You can also program a limited set of functions for keys that are shared to make it easier to get the job done.