Using a Key Programmer
Modern key fobs do more than simply function as keys. They communicate with the vehicle to start it up and open the rear hatch and more. To accomplish this, they have to be programmed together.
Car dealerships, your vehicle manufacturer and auto locksmiths all offer key programming services. However, you can do it yourself if you have the right equipment.
What is a key programer?
A key programmer is a device used to recode a transponder on the fob or key for an automobile, truck or another vehicle. This is needed when a new fob or key must be programmed. It is also often necessary when an existing key or fob has been stolen or lost. The device basically reprograms the digital signature on the chip inside the key to match that of the vehicle and enable it to start.
Certain vehicles come with electronic immobilizers that protect against theft by preventing the engine from running without the correct fob or key. The system checks whether the fob or key is digitally signed. If reprogram car key does not then the system will shut down. This kind of system has been proven to be effective in reducing the incidence of theft and is now required for a variety of models of cars by the manufacturer.
Most anti-theft systems are controlled by a module that is installed in the engine compartment or instrument cluster or ignition lock. In some cases, these modules require special keys that are specifically designed by professionals to function with the anti-theft system. This is typically done by a dealership or locksmith via computers.
It is possible to reprogramme certain keys and fobs by yourself, but it is not recommended until you're an experienced automotive technician. The reason is that a poorly programed key could cause the vehicle to start, run, or even be completely destroyed. The majority of auto makers have a specific method for programming these kinds of keys.
If you are planning to add key programming to your service offerings it is recommended you acquire an LSID (Locksmith Service ID). This credential gives you access to an inventory of immobilizer and key codes and information about the product. This allows you to quickly and easily program and test new keys for customers. It also provides essential documentation and support to help you with your everyday business operations.
How do I program the key?
A key programmer is a piece equipment that allows you to reprogram your car's keys. It reads the data from the microchip inside your key, and then write new data to the chip. This will allow you to use the key and ensure that it is functioning properly. The process of using a programmer can be a bit complicated and requires technical knowledge. Therefore, before you attempt to complete this task yourself, you should first consult an expert locksmith or locksmith for directions.
You can also purchase a key programmer online and get it professionally programmed for less than the cost to have a dealership do the work. It is important to know that not all key programmer products are compatible with your vehicle. Before making a purchase it is important to determine if the item is compatible with your vehicle.
In most cases you'll need to have your key fob reprogrammed by an dealer. The key fob must be reprogrammed in order to include the information specific to your car's anti-theft system. Dealers typically need to have the VIN number for your vehicle to perform this, and will usually charge a fee for it. You may be able to reduce the cost by providing the dealer a copy of your title, which you can obtain through the DMV in the majority of states.
For certain cars, you can also try to reprogram your own key if you already have a working key that works with your car. This is known as the master key method, and it is applicable to certain vehicles in order to program an additional key. If you have a GM car, for example, insert your key into the ignition until the security light turns off. Once this happens then you can remove your working key and then insert the new one to program it.
You can also purchase an specialized EEPROM Key Programmer. This is more expensive, but more effective method of programming a car key. However it is a more advanced technology that requires taking the car apart and reading the information from the microchip in the key. This type of programming is best suited to professionals in the field of automotive mechanics who have years of experience in electronic repair.
What are the best choices for the most experienced programmers?
There are a myriad of options when it comes key programmers. Some are solely focused exclusively on creating new keys, whereas others include a wide range of diagnostic and service functions, making them a complete tool for a mechanic's workshop. XTool is one such manufacturer that makes a range of key programmer tools that are well-received from customers. Their products are simple to use and inexpensive with a focus on customer service.
One of their most well-known models is the XTOOL Inplus IP616, which has been rated among the top in its category. It comes with an intuitive user interface and super clear instructions to guide users through the process of programming. It has two methods of accomplishing this: by vehicle or type. The former is more straightforward and is more suited to home mechanics and beginners, while the latter is more sophisticated and requires some experience.
Autel MaxiIM IM608PRO Automatic Key Programmer is another excellent option. This is a major upgrade to the previous model, and offers increased power and stability. It comes with an extremely powerful IMMO function as well as full system diagnostics at OE-level which makes it ideal for automotive technicians who are professionals.
This model is also able to bypass immobilizers in early Renault vehicles. It also comes with other useful features, including reading mechanical key codes or dealer tool security codes. It also reads CAN data from a variety of Peugeot and Citroen cars, and it comes with a long-lasting, rechargeable battery.

Despite its impressive features, the XTOOL Inplus IP616 remains relatively affordable. It's priced at less than $500 which makes it a good choice for any mechanic. It comes with an rechargeable battery and a fast boot-up time and is compatible with both OBD CAN protocols.
If you're looking for a more advanced option, you should consider the Autel XP400 Pro Auto Key Programmer. This is an advanced IMMO device that has many features, including the capability to clone Freescale 9S12MCUs. It supports a wider range than the previous model and has an CAN bus communication system that works with ECUs.
Which key programmer is the best for me?
Ultimately, it comes down to the type of work you perform and what you need from your key programmer. If you're an auto locksmith, you might need a key programer that covers the widest range of vehicles, like the Smart Pro or Autel IM608 Pro. They're designed to perform everything from reading/writing on the key to ECU coding and some OE level programming.
There are more affordable options for mechanics who don't require the entire rig. One of these is the Xtool Pad3 tablet key programmer. It is specifically designed for key programming, however it also has advanced special functions, such as oil service light resets, battery resets, EPB resets, and throttle body resets.