Using a Key Programmer
Modern key fobs are more than simply keys; they can communicate with a vehicle to start it, open the rear hatch, and much more. To do this, they have to be programmed together.
All car dealerships, auto manufacturers and auto locksmiths provide key programming. You can do it yourself using the right equipment.
What is a key programmer?
A key programmer is used to recode the transponder on a key or fob for a car truck or another vehicle. This is needed when the fob or key must be programmed. It's also common in the event that an existing fob or key is lost or stolen. The device reprograms the chip within the key to match the digital signature of the vehicle and allows it to start.
Some vehicles are equipped with electronic immobilizers that prevent theft by preventing the engine from starting without the proper key. This is done by having the car's system examine to ensure that the key or fob has the right digital signature. The system will turn off if it doesn't. This kind of system is effective in reducing theft of automobiles, and was made mandatory for various models of automobile by the manufacturer.
Most anti-theft systems are controlled by a module installed in the vehicle's engine or instrument cluster or ignition lock. In certain instances, these modules need special keys that are programmed by experts to work with the anti-theft system. This is typically done by a dealer, or locksmith using a computer.
It is possible to reprogram certain keys and fobs yourself however it is not recommended until you're an experienced technician for automotive. This is because the wrong programed key could cause the vehicle to fail to start, run or even be destroyed. The majority of automakers have a specific procedure to program these keys.

It is recommended that if you want to provide key programming as part of your service, you obtain an LSID. This credential gives you access to an encrypted database of product information and immobilizer and key codes using the NASTF's Secure Data Release Model. Having this access allows you to program and test new keys for customers quickly and effortlessly. It also provides crucial documentation and support that will aid you in your everyday business operations.
How do I program an electronic key?
A key programmer is an equipment that can help you reprogram your car's keys. It reads data from the microchip in your key, and write new information onto the chip. This will permit you to use your key and will ensure it functions properly. However the process of using a key programer is a bit complicated and requires some technical know-how to use. Before you attempt to program the key yourself, you should consult a professional locksmith or professional for guidance.
You can also buy a key programmer online and get it professionally programmed at an affordable cost than what you would pay to have a dealership do the work. But, remember that not all key programmer models will be compatible with your vehicle. You must ensure the compatibility of the item with your model of car before purchasing.
Dealers usually have to reprogram your key fob. This is because the key fob needs to be reprogrammed with the specific information required by your vehicle's anti-theft system. Dealers typically need to have the VIN number of your car to do this, and will usually charge a fee for it. You can save money by giving your dealer a copy which you will be capable of obtaining from the DMV of most states.
For certain cars you can also try to reprogram your key if you already have a working key that is compatible with your vehicle. This is known as master key method and it is a method to program a second key on some vehicles. For instance, if you are driving an GM vehicle, simply insert your working key into the ignition and turn it on until the security light turns off. Once that happens you can take out the working key and insert the new one to program it.
You can also purchase a specially designed EEPROM key programmer which is a costlier but more effective way to program the car key. This is an advanced technology which requires that you disassemble the car and read the information from the chip in the key. This type of programming should only be done by trained automotive technicians who have extensive experience in electronic repairs.
What are the best choices for key programmers?
There are a myriad of options in the field of key programmers. Certain key programmers are made for a single use, like generating new keys. Others have diagnostic and service functions to make them a multi-purpose tool for a mechanic's shop. XTool, a manufacturer of key programming tools which are highly rated by customers is one of these companies. Their products are reasonably priced and feature a customer-focused approach making them easy to use.
One of the most adored models from their range is the XTOOL Inplus IP616, rated as one of the best in its class. It comes with an easy, user-friendly interface and extremely clear instructions that assist users in the process of programming a new key. It has two methods for doing so: By vehicle or type. The first method is easier and more suitable for beginners and home mechanics, whereas the second option is more sophisticated and requires more experience.
Another great option is the Autel MaxiIM IM608 PRO Auto Key Programmer. This device is a newer model that has more power and stability. It comes with an impressive IMMO feature as well as OE-level diagnostics. This makes it ideal for professionals who work in the automotive industry.
This model is also able to bypass immobilizers on earlier Renault vehicles. It also comes with other useful features, including reading mechanical key codes or dealer tool security codes. Additionally, it can read CAN information on certain Peugeot and Citroen vehicles and also has a long-lasting battery.
Despite its impressive features, the XTOOL Inplus IP616 remains relatively affordable. It's available for less than $500 which makes it a good option for any mechanic. The device comes with a rechargeable battery as well as a quick start-up time, and is compatible with both OBD and CAN protocols.
If you're looking for an even more advanced option, you should consider the Autel XP400 Pro Auto Key Programmer. This device is an advanced IMMO tool that comes with numerous additional features, including the ability to clone Freescale 9S12 MCUs. It also supports a greater variety of vehicle manufacturers than the previous model and has an enhanced CAN bus communication engine that works with the most recent ECUs.
Which key programmer is best for me?
Ultimately, it comes down to the type of work you do and what you need from your key programmer. If you are an auto locksmith, you might require a key programmer that covers the entire range of vehicles. For instance the Smart Pro or Autel IM608 Pro. They're made to do everything from reading and writing on the key to ECU programming and even some OE level programming.
For programming car key that don't need the full rig, there are simpler alternatives such as the Xtool PAD3 tablet key programmer. It's designed for key programming, but it also has advanced functions like oil service light reset, battery reset, EPB reset, and throttle body reset.