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Types of Ignition Key Replacement The most basic type of car key is the blade type that you insert into an ignition lock cylinder in order to start your vehicle. Older cars come with these keys however, modern models have transponder chips in the keys, which must be programmed to work with the car. It is common to have these keys replaced at an auto dealer or locksmith. They can create a replacement using your car's VIN number. Transponder Keys Transponder chips are typically found in vehicles manufactured within the last 20-years. This technology is a perfect combination of mechanical and electronic security. It works by sending a coded message to the vehicle every time you put the key in the ignition. The engine control unit compared this code against its internal database to determine if you are the authorized vehicle owner. If you are, the car will start. The process is completely invisible and takes only milliseconds. There will be a tiny chip on the front of your key if you have transponder. Insisting the key into your ignition and turning it on is the most efficient method to test. If your car responds to the keys, it means that it was programmed and verified as an authentic transponder. The reason this provides an additional layer of security is because traditional keys depend on the lock tumblers to match, transponder chips actually send an electronic signal to the car's computer. This can stop people from hot-wiring their cars by ensuring that the right key is used to start the ignition system. Follow these easy steps to reprogram a transponder. First, ensure that the key works and then put it aside. Then, you can insert the blank key in the ignition and turn it to the “on” position. After about 15 minutes, turn off the ignition. After 15 minutes, you are able to try to start the car once more. If it isn't starting then you'll have to repeat the process of turning off and on the car. The process of reprogramming a transponder key is a bit more complex and expensive than duplicating a regular mechanical car key. In addition, you'll require the key professionally cut, and a specific car key programer is needed to remove the code from your ECM and then match it to the new transponder key. Smart Keys Keys With smart keys, a motorist can unlock their doors and start the engine by simply pressing a button without needing to insert the key into the ignition. The fob has an electronic transponder that connects to an immobilizer in the car, disarming it so that the car can begin. The fob is equipped with remote control buttons that open the tailgate, open the trunk and operate the door locks. Some include a panic switch which, when activated, blasts the horn of the vehicle to deter thieves. Like any technology, smart keys have advantages and disadvantages. But they do offer enhanced security and ease of use – particularly for those who have a tendency to forget to lock the car. These features also can save you money in the long run. Smart keys aren't just a great way to prevent thieves from stealing vehicles as well, but they can aid you in avoiding the infamous phrase, “it's somewhere in here.” Instead of utilizing a metal key shaft, smart keys communicate with your car using radio frequency signals. Therefore, they cannot be duplicated by keys cut in the traditional way. However, that doesn't mean you can't find the key if it does occur to be lost. Depending on the manufacturer, smart keys could be more expensive than traditional groove cut keys. This is mainly due to the fact that they have built-in electronics, making them more complex and difficult to repair in the event that something goes wrong. Fortunately, Pop-A Lock can replace and program most smart keys for just a fraction of the cost of a dealership. We can do it in a shorter amount of time, avoiding needing to arrange for alternative transportation while your car is being repaired. So, if you're considering buying a smart key to your car consider doing yourself a favor and purchase a spare key to keep in a secure place, or invest in motor insurance with a hefty payout in the event of losing your keys. Just make sure you keep it away from the eyes of anyone who might be watching – low frequency transmissions could let someone pick up the signal and steal your car, as per How Stuff Works Electronics. Switchblade Keys There are a variety of options when it comes to changing the ignition key. The traditional key is the most common one, and it comes with an iron shaft with distinct notches or cutouts that correspond with lock tumblers on the door and ignition cylinder. They aren't equipped with advanced features, such as remote unlocking or keyless entry, however, they are durable and easy to use. Transponder keys represent a significant technological advancement in the field of automotive security. These keys have an embedded electronic chip that communicates with the receiver in the vehicle. The vehicle will only begin to start when the correct code has been sent. This kind of key has been very successful in reducing automotive theft, and the process of programming a new key with a transponder is relatively simple for a professional car locksmith. Another type of key is the flip-style key, which tucks the key blade into a housing when not in use. This helps protect the blade of the key from damage, and makes it easier to carry. The key fob component of this kind of key usually has remote control functions, allowing users to lock and unlock trunk or doors of their car and start the engine from a distance. Laser cut keys are offered for those looking to add an additional security measure against auto theft. The shanks of these keys are cut using a laser, creating an extremely precise and difficult to replicate pattern. While these keys are more expensive than standard key fobs and traditional keys, they also offer more protection against theft by unauthorised users. Finally, there are switchesblade keys, which are similar to the bladed weapons that helped popularize the term “switchblade.” These keys fold up into an accessory handle for keys when they are not in use. When car ignition barrel replacement presses a button, the handle opens and exposes the key blade exactly like a switchblade knife. Locksmiths can replace the key blade or the key fob, of this type of lock. However, they are more expensive than regular replacements. Smart keys are the latest technological advancement in security for vehicles that provides a completely electronic system for unlocking and starting your vehicle. They communicate with the vehicle using antennas inserted in the car frame and body, removing the need for a traditional key blade and the need to physically insert the key into the ignition cylinder. Some of the most advanced models can even lock and start the car without the key being inserted in the ignition. However, you must be within the range. Key Fobs Key fobs are essentially remotes for cars that permit you to lock and start the vehicle without needing to touch the ignition. They are small, rectangular, and feature buttons that can be used for various functions. From locking the doors to remotely starting your car, they can do it all. They are connected to the key with a small plastic case, which may have buttons to open the trunk and set off an alarm. Some newer cars also come with keys that can be combined to provide the traditional key shank as well as an accessory key fob, with the latter usually controlling the ignition. These may also be called”transponder keys. “transponder key.” Most modern car owners don't realize that they use their keys to unlock their vehicles. These devices can be an excellent way to make driving easier however, they also have a few drawbacks. The most obvious problem is that the battery of the key fob may die. The key fob transmits a code that is used to unlock and start your car. If the signal is lost or broken the key won't be able to start the car. Fortunately key fobs of today have been designed to deter these threats. They are usually programmed to send random numbers to the car system each time they transmit an alert. This prevents old codes from being reused and renders any keys stolen from the car useless to thieves. Key fobs can also serve as a backup option to unlock and start the car in the event that your key is lost. Some manufacturers go one step further and offer applications that can be used to control the vehicle in the event that you fail to find your key fob. A professional locksmith can assist you replace the lost key fob. They can assist you and their services are typically less expensive than those offered by a dealership.