25 Shocking Facts About Automotive Locksmith Key Programming

· 6 min read
25 Shocking Facts About Automotive Locksmith Key Programming

Automotive Locksmith Key Programming

The majority of modern cars require some form of key programming. Based on the model and manufacturer, the process may be as simple as using a spare key to program the onboard computer or as complicated as OBD2 programming or EEPROM.

The majority of US and Asian car makers share their programming protocols with auto tool manufacturers so that they can develop tools and hardware for locksmiths working in automotive vehicles.

Transponder Chips

Most newer cars use what are called transponder chips to prevent car theft. These are microchips in the form of computers which emit radio signals of low-level. They have a unique serial number that authenticates the key to your car 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 proven to be a huge success in preventing theft of cars. It has also saved many car owners a significant amount of money because they don't have to buy new their cars.

The basic concept behind the transponder system is to make it hard for thieves to start your car without the right key. In the past, car thieves used a flat screwdriver to force the ignition switch of your vehicle into the "on" mode, or hot-wire it in order to get around the system. These types of thefts have drastically decreased with the introduction of the transponder chip.

When you insert a transponder keys into the ignition, it transmits a signal that is received by a hidden antenna that is positioned around the barrel of the ignition. This antenna is programmed so that it can read the specific frequency of the chip inside the key. The car's computer onboard will detect that the key is genuine and allow fuel to flow, turn the starter or begin it.

Depending on the manufacturer certain vehicles can only accept a specific type of transponder chip. It is therefore important that your locksmith for cars is equipped with the correct equipment to program your car's keys and remotes.

A reputable locksmith for cars should have a multi-vehicle key programming device that is compatible with different models and manufacturers of cars. This is a cheaper alternative than buying specific tools for each model of vehicle. These aren't as popular but there are automotive key programming tools that can only work on a particular model of vehicle. The best automotive locksmiths will have the right tools to deal with any kind of vehicle, so be sure you choose a reputable firm with these kinds of tools.

Key FOBs

The name implies that key FOBs are home to the transponder chips programmable that enable your vehicle to recognize and open the doors or start the engine using a push button ignition. They also have buttons you can push to activate features such as door locks, trunk release or fuel flap control. Certain fobs come with additional functions that can be controlled by the push of a button, such as a "smart" key fob that allows you to get your car into parking spaces that are difficult to access as you would with the Genesis GV60 or Tesla. Tesla or Genesis GV60.

While certain replacement key fobs can be programmed by you using the aid of a user's guide but you'll usually require an auto locksmith to have a new one programmed if yours stops functioning. A professional is better equipped to connect your computer to the vehicle via the OBD port on the steering wheel.

Today, most key fobs have security features that make it difficult for attackers to clone or replicate the signals they transmit. Certain key fobs come with pseudo-random code generators that generate a different unlock code each time you press the button. This blocks attackers from recording and replaying the unlock signal to gain access to your vehicle.

In certain instances you can purchase the replacement keyfob at a dealership or another retailer. Your locksmith at your auto will then program it to work with your vehicle. This is because the majority of the major US and Asian car manufacturers use key fob programming protocols with third-party companies that make the tools that locksmiths for auto employ to program their customers' keys.

Although some key fobs from the aftermarket are marketed as being compatible with all vehicles however, the majority of locksmiths for automotive do not recommend using them as they will likely only work poorly or not at all. Instead, they suggest buying fobs designed specifically for your vehicle, so that you are certain they'll function properly and be less susceptible to issues such as interfering or not working. This will save money over time by avoiding costly repairs or replacements for your fobs.

Vehicle Manufacturers' Programming Tool

Automotive technology has come a long way and today's vehicles need computer technology to function. Transponder chips are an essential component of this technology. It must be programmed by a locksmith, mechanic or dealer to work. Key fobs with embedded security features that will prevent hot-wiring (like in a movie) and the car won't start without the right key.

These key fobs are more complicated than a traditional mechanical key and that's why they are usually in the hands of a reputable, professional auto locksmith. The cost of a key fob will vary depending on the car model and the key type however they usually cost between $85 to $400. This includes the labor required to program the key fob as well as the cost of any needed replacement parts.

The car key fobs are more intricate because they utilize an operating system that communicates with the computer onboard of the car. The software blocks access to unauthorized users by only allowing the key to function if it has been programmed to that specific car. This means that if you need your keys replaced, you'll need to have the new key fob programmed to the car for it to function.

This is done by using a programing tool for car keys that is compatible with the brand of your vehicle. This tool allows the locksmith to connect to the onboard diagnostics port (OBD) in the vehicle and then enter an programming mode. Key programming tools can either be an inexpensive handheld device or a more expensive one that is capable of performing various things that go beyond key programming (like reading and cloning the eeprom files in the ECU).

Some people may try to program their keys by themselves using these tools. However this should be left to a professional auto locksmith. If you're not aware of all the ins and outs of the various software systems, it's very easy to accidentally alter settings that could damage the vehicle. It's important to remember that an experienced professional will help you avoid these problems.

On-Board programming

If your car is old enough it could still be equipped with a key made of metal that you can use to unlock doors and turn off the ignition. However, modern cars are equipped with transponder chips that need to be recognized by the computer system to begin. This adds an extra layer of security that prevents car thieves from starting a stolen car and then driving off with it. A locksmith who is certified has the tools and software needed to program a key that will be compatible with your car's security system.

Your locksmith will need to acquire a key blank that is that is compatible with your car's make and model. Once your locksmith has the key, he'll connect the scanner for programming to the diagnostic port of your vehicle. This will put your car in a special programming mode, which will allow the locksmiths to add the key to the system.

The key programmer scanner communicates with the computer of the vehicle to transmit an electronic code. The computer will detect this code and add it to the list of approved key. In some instances, a scanner can also remove keys that have been stolen or lost.

You can also program new keys using EEPROM. It is more complicated and requires a deep understanding of how electronic systems work. It is best to leave it to a professional who has knowledge of these systems.



Onboard programming is the most efficient method for locksmiths to program an entirely new key. When everything is done correctly, it can take as little as one minute. If  reprogramming car keys  isn't in the right situation or the procedure is not strictly followed, it could take up to an hour.

There are a variety of key programmer scanners that support different car models and makes. Both the Smart Pro and Autel IM608 Pro have become extremely popular with locksmiths due their wide range of models for vehicles. No system can program every vehicle. These devices are also expensive. It's a good idea to purchase a computer that receives regular updates as the manufacturer develops new technologies. If not, your computer will soon become obsolete.