How to Program a Car Key
Modern cars have more than just a single key to start the engine. They also come with a remote that can lock and unlock doors. These key fobs need to be programmed in order to function properly.
It is possible to program certain car keys by the owner, however it is advised to consult a professional. This will avoid any damage to the car's computer system and also ensure that the new key works correctly.
How to Program a Key
Up until the turn of the 21st century, the majority of cars utilized basic key systems. The keys themselves were just metal and featured grooves that matched the internal components of the ignition cylinder. As technology improved the number of car makers began to combine physical and electronic protocols to stop theft. These key systems are called transponder keys or chip keys and are designed to make it more difficult for thieves to start the vehicle.
The key chips come with a unique serial code that transmits a message to the receiver in your car. The signal is compared with an identifier in the computer of the car when it is received. If the codes match, your car will start. If the codes don't match, your vehicle won't start at all. This is why it is important to keep a spare car key, especially if the system is based on transponders.
If you're interested in learning how to program a key, you'll need certain equipment. You'll also need an uncut key for your particular model and make. They can be purchased from a dealership or by a locksmith but you must make sure they're the right ones. If you use a key from another model, it won't function.
Start the process by inserting the new key in the ignition and turning it to "on". You will need to leave the new key in this position for about 10 minutes and 30 seconds. Once the time is up, you can remove the key and see whether the security indicator on your dashboard went out. If it didn't then you'll need to repeat the process for the third time.
Remember that this method will only work on GM vehicles but it's not 100% secure. If you want a more secure and reliable solution go to a locksmith or dealer to have your vehicle programmed with an embedded chip. These professionals have the necessary tools and equipment to connect to the diagnostic port on your car's motherboard and then make the change.
Keyless Entry Systems
Keyless entry systems provide access to properties without the need for a physical credential. Security is achieved through the combination of sensors and an onboard computer. It is possible to manage and monitor the system from anywhere within the property. Keys and locks are not required. The system can also identify stolen or lost cards and then deactivate them. The latest models also support remote management and configuration as well as are cloud-based.
Modern cars come with keyless entry systems. The system works by sending radio signals that are received by the keyfob. The signals are then compared against the correct code that is stored in the car's computer and if everything is in order the car will be able to unlock. The car key programmers won't start when the signals aren't the same. There are a variety of steps you can follow to program your new key fob if it isn't already programmed.
The first step is to make sure that all doors are locked except for the driver's side. You'll need to have the original key fob along with any other devices you wish to program. You may also visit your local auto parts store to see if they've got the right tool for your car. If these steps don't work, you'll have to consult the owner's manual or a professional locksmith.
Once you've got the proper tool, you can follow the manufacturer's instructions to begin reprogramming your key programming fob. The process is usually quick and easy. For instance, you could be asked to insert your new key into the ignition with all doors shut and then press a button on the key fob within a short time period. The car could then respond by cycling the door locks or generating a chime to signal that the key has been successfully programmed.
Many locksmiths employ special tools to get around the EEPROM security features that are built into your car's remote or key fob. But, this is an extremely risky procedure and could lead to the possibility of destroying the data stored on your car's computer. This is best left to a professional who can lower the chance of data corruption and ensure that your keys are properly programmed.
Transponder Keys
Transponder keys, also known as chip keys, have a microchip built into the head of the key. When the key is placed in the barrel of the ignition lock, and turned to ON, the antenna ring sends an energy burst through the transponder chip. The chip absorbs this energy and then transmits a radio frequency signal that includes an identification code. This code is in line with the unique serial numbers of the computer of the car. This prevents an unauthorized attempt to start the car key programming and cutting, because only a valid key will be able to do so.
This technology is thought to be more secure than a traditional car key because it makes it more difficult for thieves to "hot wire" the vehicle and then start it. However, it's not foolproof and thieves have found ways to evade and defeat the system - so that even vehicles with transponder keys aren't safe from theft.
Based on the make and model of your vehicle You may be capable of programming a new transponder key yourself with a key programer that is compatible with the car you own. The key programmer will come with a manual that will take you step-by-step through the procedure. Once you have the key and a key programmer, follow the steps carefully and ensure the security light on your dashboard is turned ON prior to turning the engine ON.
If you're not comfortable with programming keys, or if your car includes more advanced features such as remote head keys or smart keys, you may turn to a professional locksmith help. They'll have the right tools and equipment to cut the blank key, remove your previous one from the computer in your car and then program the new key so that it works properly. This will save you time and money, and keep your car's safety system working just as it should. Additionally, it's much safer than making it yourself. If you use the wrong key programmer or follow unofficial guides or instructions, the information stored in your car's system can be corrupted and the new key won't function.
Remotes
If your car keys aren't working it could be necessary to change the programming. This is a simple procedure for a lot of modern vehicles that have key fobs. However, certain models are more complicated and require programming with the help of an additional device that's typically available from a dealer or auto locksmith.
Fortunately, most modern car manufacturers have improved their key systems to be more secure in order to prevent theft of vehicles. The key system was designed to stop hot-wiring (the method of using a key from another vehicle to start the engine) and other similar methods. This means that you'll require at least two functioning key fobs for your vehicle to be able to use the system. It is essential to have at minimum two spare keys in your possession.
The key fobs have electronic chips that communicate with the car's receiver using radio signals. The computer compares the key's code with the database. If the codes are the same the car will be able to start. If not, the car will be dead or refuses to start. The majority of these electronic keys can be programmed and replaced by a professional locksmith or auto dealer using the proper equipment.
If you're able to find a low-cost car key programer on the internet or at an auto parts store, the procedure will be relatively simple. You'll have to follow a particular sequence of steps that includes inserting the key into the ignition, turning it on, without running the engine, then turning the key off. You'll need to repeat this a certain number of times within a certain time period to allow your vehicle to enter programming mode. This will be evident by the door locks turning or an audible chime.
Some modern vehicles are capable of being programmed using a tool that is connected to the onboard diagnostic port or EEPROM programming. Most of these tools are very expensive and are therefore not affordable for most car owners. Therefore, the majority of experts in the field recommend that you speak with an experienced auto dealer or locksmith for key programing services.