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The 10 Most Scariest Things About Automotive Locksmith Key Programming
Automotive Locksmith Key Programming

Modern vehicles require some form of key programming. Depending on your vehicle's model and manufacturer the procedure could be as simple as using an extra key to program the onboard computer or as complex as EEPROM or OBD2 programming.

Most US and Asian car makers share their programming protocols with auto tool manufacturers in order to create hardware and software for automotive locksmiths to use.

Transponder Chips

Most newer cars use what are called transponder chips to stop car theft. These are tiny computer microchips which emit low-level radio waves. They are equipped with a unique digital serial number that authenticates the key to your vehicle when it is plugged into the ignition barrel. If your car isn't able to recognize the signal, it will shut down the engine. This technology has been an incredible success in preventing auto theft. This technology has also helped car owners save a good deal of money by not having to replace their vehicles.


The basic idea behind the transponder system is to make it difficult for thieves to start your car without the proper key. In the past, car thieves would simply force the ignition switch of your car into the "on" position with a flat screwdriver or even hot-wire the car to bypass the system entirely. Transponder chips have dramatically reduced these types of thefts.

When you place the transponder key in the ignition, the signal is picked up by an antenna hidden around the barrel. The antenna is programmed to detect the particular frequency of the chip within the key. The onboard computer in the car will then recognize the key as being valid and allow fuel flow, power the starter or begin the engine.

Based on the manufacturer, some vehicles will only recognise the specific type of transponder chip. It is therefore essential that your locksmith in the automotive industry is equipped with the correct equipment to program your keys and remotes for your vehicle.

A good automotive locksmith should have an instrument for programming keys for multiple vehicles that can work on many different car manufacturers and models. This is a much more cost-effective approach than purchasing separate tools for each type of vehicle. They are not as common however, there are specialist automotive key programmers that are able to only work on a particular type of vehicle. The most reliable automotive locksmiths will have the right tools to work on any type of vehicle, so ensure you choose a reputable firm that has these types of tools.

Key FOBs

The name implies that key FOBs are home to the transponder chips that can be programmed to enable your vehicle to identify and unlock the doors or start the engine using a push button ignition. You can also press buttons to activate features like door locks, trunk releases or controls for the fuel flap. Some fobs have additional functions that can be controlled using the button presses for example, a "smart" key fob that lets you summon your car into parking spaces that are difficult to access similar to a Tesla or Genesis GV60.

You can program some replacement key fobs yourself using the help from a user guide, but you will need to call an automotive locksmith if the one you have has stopped functioning. This is because a professional has the equipment that is specialized and access to the programming tools required to connect your car's computer through the OBD (OBD) port located beneath the steering wheel.

The majority of key fobs today include security features that make it difficult for hackers to duplicate or copy the signals they transmit. Certain key fobs feature pseudo-random code generators that generate a different unlock code each time you press the button. This stops attackers from recording and replaying the unlock signal to gain access to your vehicle.

In most instances you can purchase a replacement key fob from the dealer or other retailer and have it programmable by a locksmith for your vehicle to fit your particular vehicle. This is because most of the major US and Asian automobile manufacturers share their key fob programming protocols with third-party companies that produce the tools auto locksmiths use to programme keys for their customers.

Certain aftermarket key fobs can be marketed as being compatible with vehicles of all kinds. However, professional locksmiths recommend against using them because they're more likely to perform poorly or even not even work at all. Instead, they recommend purchasing fobs designed specifically for your vehicle so that you are certain they'll function properly and be less prone to issues such as interference or incompatibility. This will save you money in the long run by avoiding expensive repairs or replacing your fobs.

Toolkits for Programming Vehicles of Manufacturers

Automotive technologies have come a long way and today's vehicles need computers to function. A transponder chip is an important part of this technology. It has to be programmed by a locksmith, mechanic or dealer to function. These key fobs have built-in security features that prevent hot-wiring (like in a film) and the car won't start without the proper key.

These key fobs can be a little more complex than a standard mechanical key. This is why they are usually handled by experienced, professional auto locksmiths. The cost of the car key fob is according to the type and model of key, but it is generally between $85 to $400. This includes the labor required to program the key fob and the costs for any required replacement parts.

To complicate the process to make the process more complicated, these key fobs for cars make use of a special software to work with the car's onboard computer. The software blocks access by unauthorised persons by only allowing keys programmed specifically for a particular car to function. This means that if you need your keys replaced, you'll need to have the new key fob programed to the car for it to function.

The most common way to do this is by using the car key programming tool that is compatible with the model of the vehicle. This tool permits a locksmith to connect to the OBD port of the vehicle and then enter the programming mode. The key programming tool could be a simple handheld device or a more expensive one that is capable of performing a wide range of things that go beyond key programming (like reading and cloning the EEEPROM files in the ECU).

Although some people might attempt to program their own keys with these tools, this is an activity best left to an experienced auto locksmith. It's easy to make mistakes using the software systems if you don't understand the intricacies. This could result in damage. The most important thing to keep in mind is that an experienced professional can help you avoid these issues.

On-Board programming

If your car is older than it could still be equipped with a metal key that can be used to open doors and turn on the ignition. However, modern vehicles come with transponder chips that need to be recognized by the computer system of the car to begin. This is an additional layer of security that prevents thieves from starting and driving away with a stolen car. A certified locksmith has the tools and software to create a key that works with the security system of your vehicle.

Your locksmith will need to obtain an uncut key that is compatible with your vehicle's model and make. Once car key programing is in your possession, your locksmith will link the scanner for programming to the diagnostic port of your car. This will place the car in a special programming mode, which allows locksmiths to connect keys to the system.

The key programmer scanner communicates with the computer in the car to send an electronic code. The computer will recognize this code and include it into the list of approved key. In certain situations the scanner will also remove keys that have been stolen or lost.

You can also program new keys with EEPROM. It is more complex and requires an in-depth understanding of how electronic systems work. This is why it's best left to a professional that has extensive expertise working on these types of systems.

Locksmiths can program a key quickly by using onboard programming. If everything is done correctly it can take as little as one minute. If the key isn't placed in the proper state or the procedure is not followed exactly, it can take as long as a half hour.

There are numerous key programmer scanners available that can be used with different vehicle models and makes. Both the Smart Pro and Autel IM608 Pro have become extremely popular with locksmiths due their wide selection of models for vehicles. However, no system will be able to program every single vehicle that exists. In addition, these machines are expensive. It is a good idea to purchase a computer that will get regular updates as the manufacturer releases new technologies. If not, your computer will become obsolete quickly.