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Types of Ignition Key Replacement The simplest kind of car key is the blade style that you insert into the ignition lock cylinder to begin your vehicle. Older cars use these kinds of keys however modern models incorporate transponder chips within the keys that must be programmed to work with your car. These keys can be replaced by a dealer or an automotive locksmith. The VIN number of your vehicle can be used to create a new key. Transponder Keys Transponder chips can be found in cars manufactured within the last 20 years. This technology is a perfect combination of electronic and mechanical security. It works by transmitting a coded signal to the vehicle whenever you insert your key into the ignition. The engine control unit examines this code against its own database to determine if you are the legitimate owner of the vehicle. If it is then, the car will start. The process happens in milliseconds, and is not visible to the naked eye. If you own a transponder key, you will be able to detect an electronic chip that is small on the face of your key. Inserting the key in your ignition and turning it on is the most efficient method to test. If your car responds to the keys it means it has been programmed and verified as a valid transponder. The reason for this extra layer of security is because traditional keys depend on a match with the tumblers of the lock transponder chips transmit an electronic signal to the car's computer. This prevents people from hot-wiring their cars by making sure the right key is used. To reprogram a transponder device, you will need to follow some simple instructions. First, ensure that the key is in good working condition and set it aside. Next, sit in the driver's seat and insert your new key blank into the ignition, turning it to the on position. After about car ignition cylinder replacement , switch off the ignition. After 15 minutes, you are able to try to start the car again. If it doesn't start then you'll have to repeat the procedure of turning off and switching on the car. Reprogramming a car key with a transponder is more difficult and costly than replicating a mechanical key. In addition, you will require the key professionally cut and a special car key programr is needed to remove the code from your ECM and then match it to the new transponder key. Smart Keys Keys Smart keys allow drivers to unlock doors and start engines with a single touch, without the need to insert the key in the ignition. The fob has an RFID chip that communicates with an immobilizer inside the vehicle, disarming it to ensure that the car can begin. The fob comes with remote control buttons that open the tailgate, unlock the trunk and operate the door locks. Some also include the panic button, which when pressed, blasts the vehicle's horn to repel intruders. Smart keys aren't any different. They come with their pros and cons as any other technology. They do provide increased security and comfort – especially for those who have a tendency to forget to secure their vehicle. These features can save you money over time. In addition to preventing thieves from taking your car away, smart keys can help you avoid the old phrase “it's there somewhere.” Contrary to traditional groove cut keys, which require a physical metal key shaft to unlock and start your vehicle, smart keys use radio frequency signals to communicate with your vehicle. They aren't duplicated by the traditional key. However, this doesn't mean you cannot find the key in the event that it is lost. Depending on the manufacturer, smart keys may be more expensive than traditional groove cut keys. This is because they are equipped with electronic components which make them more complex and difficult to repair if something goes wrong. Fortunately, Pop-A-Lock can replace and program the majority of smart keys at less than the cost of your dealer. We can even complete the process in a much shorter time frame, saving you the hassle of having to find alternative transportation until your car is repaired. If you're considering purchasing a smart car key, buy an extra key to keep in a secure place or invest in motor cover that will pay out in the event of losing your keys. Make sure to keep it away from prying eyes – low frequency transmissions can let someone pick up your signal and steal your car, according to How Stuff Works Electronics. Switchblade Keys When it comes to ignition key replacement there are several different options available. The traditional key is the most popular one, and has a metal shaft that features distinct notches or cutouts that correspond with lock tumblers in the door and ignition cylinder. They lack advanced features like remote unlocking or keyless entry but they are reliable and easy to use. Transponder keys represent an important advancement in the field of automotive security technology. These keys are equipped with an 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 proven successful in reducing automotive theft and programming a new key with a transponder is fairly simple for a professional locksmith for cars. Another kind of key is the flip-style that tucks the key blade inside an enclosure when not in use. This will protect the blade of the key from damage, and makes it easier to carry. This kind of key comes with an accessory key fob that has remote control features. Drivers can lock and unlock their car doors, trunks, and start their engines from a distance. Laser cut keys are readily available for those looking to add an extra security measure against auto theft. Lasers are used to cut the shanks of these keys, creating patterns that are more difficult to duplicate. They are more expensive than standard keys and key fobs but they offer a higher level of security. There are also switchblade keys, which resemble the bladed weapons that helped popularize the term “switchblade.” These keys fold down into the shape of a key fob handle when they are not being used. The handle opens when a button is pressed, revealing the blade of the key. Locksmiths can replace the key blade or key fob portion of this type of key, however, they are a bit more costly than simple replacements. Smart keys are the newest advancement in security for vehicles. They provide a completely electronic system for unlocking and launching your car. These keys communicate with your vehicle via antennas embedded in the car frame and body. This eliminates the requirement for traditional key blades and the requirement to insert the key into the ignition. The most advanced models are able to lock and start your car without having to be inserted into the ignition however this requires you be within the range of the vehicle. 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 typically small and rectangular, and have buttons that perform a range of functions, ranging from locking the doors to remotely starting the car. They attach to the car keys via tiny plastic cases which may also have buttons to open the trunk or trigger an alarm. Some of the latest vehicles also have a combination key, which is a combination of a traditional key shank and a key fob. The latter is usually used to control the ignition. They can also be referred to as a “transponder key.” The majority of modern car owners don't realize that they are using their key fobs to unlock their vehicles. While these gadgets are great for enhancing the experience of driving but they do have some drawbacks that should be taken into consideration. The most obvious problem is that the key fob's battery may be dead. The electronic signals that unlock your vehicle and then start it operate by sending a code to the computer in your car and when the signal is disrupted or is lost, the key fob won't be in a position to operate the car. Fortunately modern key fobs have been designed to resist such threats. They are often programmed to send random numbers to the car system every time they send out signals. This prevents the old codes from being reused and makes any key stolen useless for thieves. If the key is lost, the key fob will serve as a backup device to start and unlock the vehicle. Some manufacturers have taken it a step further and created apps that can be downloaded onto the phone and used to control a car in the event that you aren't able to find your key fob. If you have a key fob that needs to be replaced, it's best to contact a professional locksmith. They can help you and their services are usually less expensive than those offered by a dealership.