How to Program Keys For Cars
Automotive specialists or locksmiths are typically the ones who re-program keys to cars. They could take your old key and use a specific tool to program a new one for your vehicle.
The procedure involves reprogramming the blank chip inside your replacement key to fit the current settings of your vehicle. Certain manufacturers make it simple to do, while others require the assistance of a locksmith or dealer.
Self-Programming
The ignition keys have changed in tandem with the advancements in car technology. The days of basic mechanical keys you could buy from a hardware shop for less than $10 are gone. The latest models are equipped with computers with improved anti-theft protection. In order to work correctly, these vehicles require a transponder chip-integrated key be programmed to the vehicle by a professional locksmith or a car dealer/mechanic.
There are several types of car keys programming that can be performed by professional locksmiths. Some are complex and require specialized tools. These tools aren't generally accessible to the general public and are used only by professionals. This kind of car key programming is referred to as EEPROM Programming and requires soldering, electronic skills and a lot of time.
Other forms of programming for car keys are a lot simpler and can be done by anyone who is able to. They can be done by using the onboard diagnosis port, which can be accessed via a tool specifically designed for key fob programming. This method can be done by a professional locksmith using an online guide or the car's owner manual.
Professional locksmiths are able to program a replacement or new car key fob quickly. This is the ideal option for owners of vehicles as they can offer a full range of services. They can offer a competitive rate and the assurance that the replacement key will continue to work.
Keep in mind that the majority of vehicles can only accept a single programmed car key. If you're looking to save some money, it's a great idea to get an additional key fob that works and then have it programmed. This way, you can be sure that the new key is programmed to your vehicle and that it will work. If not, you'll have to pay the dealership for replacement keys and programming services.
Key Programmers
Modern automobiles often require a key programming process to start the system of the vehicle and allow the vehicle to begin. In some instances, the key must be programmed by the dealer or an auto locksmith. The key might not function properly or it may not even start the vehicle in any way. This is because the key hasn't yet been programmed into the car's system. This can be expensive. It is best to have two keys that work with your current car so you can program the replacement key when needed.
A keyprogrammer is a device that recodes the transponder chip into the form of a new mechanical or key fob key. It also can clone information from an existing key to make duplicates. These are handheld devices that connect to a car's On Board Diagnostics (OBD port). They come with diagnostic software that allows them to communicate with computers as well as bidirectional interfaces to work with the immobilizer system.
There are many various kinds of keyprogrammers that are available and they come in all shapes and sizes. Some are cheap while others are sophisticated and could cost thousands of dollars. Certain models are specifically designed for certain types of cars, and they can even provide advanced diagnostics for your vehicle's electronic systems.
Refer to the owner's manual of your vehicle to learn how to program keys for your vehicle. Some manufacturers use proprietary technology that guarantees that the dealership is the sole entity able to create new keys, but other manufacturers make it simple for anyone to do it themselves.
If you are unable to program the new key by yourself, then you can request your dealer to do it, but it'll be very costly. You can also buy an online keyprogrammer. These are less expensive than going to a dealer, but they're still not cheap. Before purchasing one make sure you research the seller. Some aren't trustworthy and may damage your vehicle.
Transponder Chips
Transponder chips are likely be found in cars manufactured within the past 20 years. It's the tiny plastic piece in the head of your car key that contains an RFID (Radio Frequency ID) chip that has a unique code to your car.
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 fitted around the ignition barrel of your vehicle. This allows the computer in your vehicle system to determine if the transponder chip that is in the key is the right one for your specific vehicle.
This prevents the vehicle from being started through hot-wiring or altering the key. The chip in the key also verifies that you are the genuine owner of the vehicle. This helps to prevent car theft.
Transponder keys resemble regular metal keys but they have caps made of plastic. The chip itself is housed within the plastic part of the key and there are a few different types of cuts on the keys: a standard cut laser cut (also called a sidewinder) or Ford Tibbe key.
A circuit inside the induction coil will emit a signal when the transponder is inserted into the ignition barrel. The signal is absorbed by the chip, which then transmits a signal to the vehicle. If the computer onboard the car recognizes the signal as valid, it will disable vehicle immobilizer, allowing the engine to start.
If the vehicle doesn't recognize the transponder as being the proper signal, it won't start the engine and warn you with flashing lights and siren. This feature is designed to discourage people from attempting to hack into 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 detects the signal.

As you can see, there are quite a number of advantages to having transponder keys. This is something that all car owners should consider if want to safeguard their investment and reduce the chance of theft.
Key Fobs
In addition to locking and unlocking doors, starting the car from a distance or making sound chirps to help locate a car in a parking lot, today's key fobs can also switch on a heated steering wheel, or open all windows with a single push. Many of these extra features might seem useful, but they can also make it difficult for you to keep track of your car keys.
Key fobs communicate with one with the car via radio frequencies that are transmitted via an antenna that is located in the center of the key. This communication is encrypted to block other key fobs from stealing or modifying the signal.
There are a few different ways to program a key fob based on the vehicle's model and make. Certain models allow you to do this yourself. However, the majority of newer models require you to visit a professional locksmith or dealer to program a new key fob, or an alternative one.
When you hit the button on a key fob it transmits an informational code to the car's radio that it is linked to. The receiver then compares the data with the 'allowed signals' that are stored on the key fob and then it opens or closes the car's door. If the information isn't in line an chirping sound is heard and the car isn't permitted to operate.
Once the car is linked with a specific fob it will only accept signals from that device. Other fobs won't work with the car, even if they look like. This is to safeguard the integrity of the car's computer system, and also to stop unauthorised key fobs from taking control over the vehicle.
Most newer car dealers will only work on a car with original fobs or genuine replacements that are sold by the manufacturer. This is because the process of creating a replacement fob requires technological and security skills that can only be found in the dealer service department. However, some aftermarket fobs that are typically designed for older models with less sophisticated systems -- can be programmed by customers without the need for dealers.