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How to Program Keys For Cars Typically, car key reprogramming is the job of a locksmith specialist. They can take your old working key and then use a special tool to program a brand new one for your vehicle. This involves changing the chip inside the replacement key so that it matches the current settings of your vehicle. Some manufacturers make it simple, while other require a locksmith or dealer. Self Programming As car technology has evolved over time, the ignition keys have also evolved as well. The days of simple mechanical keys that were made at an hardware store for less than $10. The latest models are equipped with computers with improved anti-theft protection. These cars require a transponder-chip-integrated key to be programmed by a professional locksmith car dealer or mechanic for proper operation. Professional locksmiths can carry out various types of programming for car keys. Some are complex and require advanced tools. These tools are usually not available to the general public and are used only by professionals. This type of car key programming is referred to as EEPROM Programming and requires soldering, electronic skills and a significant amount of time. Other kinds of key programming can be performed by anyone. These are usually done by using the onboard diagnostics port which can be accessed with an instrument for programming keys. This procedure can be carried out by a trained locksmith using an online guide or the vehicle's owner's manual. Professional locksmiths can program a replacement or new car key fob quickly. This is the ideal option for owners of vehicles as they can provide a complete range of services. They also can provide an affordable cost and assurance that the new key will work properly. Remember that most vehicles can only accept a single programmed car key. Therefore, if you want to save money, it might be a better idea to buy a spare key fob, and have it programmed by an auto locksmith. You can be sure the new key will function and is compatible with your car. You'll need to pay the dealer for programming and replacement keys if they don't. Key Programmers Modern vehicles require a key-programming method to initialize their vehicle's systems and start the car. In many cases, the key must be configured by the dealer or an auto locksmith. The key might not function properly or it may not even start the car in any way. This is because the key has not yet been programmed into the car's system. This can be expensive. It's best to have two keys that are compatible with your current car so you can program the replacement key when required. Keyprogrammers can recode the transponder chip of the new mechanical key or key fob. It is also able to copy the data of an existing key and allow duplicate keys to be made. These devices are handheld units that connect to the car's On-Board Diagnostics (OBD) port. They are equipped with diagnostic software that allows them to communicate with a computer. They also have a bidirectional user interface to work with an immobilizer system. There are a number of different kinds of keyprogrammers that are available and they come in a variety of sizes and shapes. Some are inexpensive while others may cost thousands of dollars. Certain are designed for specific vehicles and can provide advanced diagnostics of the car's electronic system. Refer to the owner's manual of your vehicle to learn how to program a key for your vehicle. Certain manufacturers employ proprietary software that only allows the dealership to make new keys. Other manufacturers make it simple for anyone to do. If you're unable to program a new key yourself You can request the dealer to program it for you, however it will cost a lot. You can also purchase an online keyprogrammer. These are cheaper than visiting a dealership however they're expensive. Be sure to look up the seller before buying one. Some aren't reliable and could harm your vehicle. Transponder Chips If your car was manufactured within the past 20 years, chances are it contains a transponder chip within of it. This is a little plastic piece inside the head of your key that houses an RFID (Radio Frequency Identification) chip with an individual code for the specific vehicle you own. When activated by an electro-magnetic field, the chip emits a low level signal. This signal is then amplified by the specific antenna that is attached to the ignition barrel of your car. The computer system of the vehicle will then confirm that the key's transponder chip is the right one for your car. This is what stops doing hot-wiring or altering the ignition system of the vehicle to start it. The chip inside the car key ensures that the owner is the person who owns the vehicle. This will help reduce car theft. Transponder keys resemble regular metal keys but have caps made of plastic. The chip is contained within the plastic portion of these keys. There are several different cuts that are a standard cut, a Laser cut (also known as a sidewinder or Ford Tibbe), and Ford Tibbe. When the transponder key is inserted into the ignition barrel, a circuit inside of the induction coil sends out the signal. The signal will be absorbed by the chip and cause it to send a signal back to the car. If the computer inside the car recognizes the signal as valid it will turn off the vehicle immobilizer so that the engine can start. If the car doesn't recognize the transponder as a valid signal, it won't start the engine and will warn you with flashing lights and siren. This is designed to discourage people from attempting to tamper with the vehicle, however it isn't a foolproof security measure. A skilled and skilled criminal can still get around this system using a special device that intercepts the signal. It is evident that a transponder is a great option. All car owners should consider this in order to safeguard their investment and minimize the risk of theft. Key Fobs In addition to locking and unlocking doors, launching the car from a distance or making noises to aid in finding a car in a parking lot Key fobs today can also switch on a heated steering wheel, or roll down all of the windows with a single button press. These extra features can make it difficult to locate your car keys. Key fobs are able to communicate with each other and the car using radio frequencies which are transmitted through an antenna that is located in the center of the key. The communication is encrypted, which helps to prevent others from intercepting and replicating the signal. There are many ways to program a key fob, based on your vehicle's model and make. Some cars allow you to do it yourself. However, the majority of newer models require you to visit a professional locksmith or dealer for them program a replacement key fob or additional one. When you press a key fob's button, the microchip inside transmits an informational code to the car's receiver that it is paired with. The receiver then compares the data with the 'allowed signals' stored in the key fob and then opens or locks the car's door. If the information isn't in line, a chirping sound is heard and the car isn't permitted to function. When a car is connected with a particular fob, it will only accept signals from that device. In turn, other fobs will not work with the vehicle even if they look the same. This protects the integrity of the computer system of the vehicle and stops unauthorised key fobs from taking control of it. Most newer car dealers will only work on cars with original fobs or genuine replacements supplied by the manufacturer. This is because preparing the replacement fob is a process that requires technological and security knowledge which can only be obtained in the dealer service department. However, some fobs from the aftermarket that are typically designed for older models that have less sophisticated systems can be programmed by consumers without the need of a dealership.