How to Program a Car Key
Modern cars come with 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 have to be programmed in order to work.
Some car keys can be programmed by the owner himself, but it's best to consult with a professional. This will help protect against any possible damage to the computer system and ensure that the new key works correctly.
How do you program a key?
Up until programming car key of the 21st century most cars used basic key systems. The keys themselves were metal with grooves that matched the internal components of the ignition cylinder. As technology advanced the number of car manufacturers 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 difficult for thieves to get into the vehicle.
The key chips contain an unique serial number which transmits a signal to the receiver inside your car. When the signal is received it compares it with a code stored in the car's computer. If the codes are similar, your car will start. If the codes don't match, your vehicle won't start at all. This is one of the primary reasons you should keep a spare key in your vehicle, particularly in the case of an electronic transponder.
You'll need special equipment to learn how to program keys. You'll also require an uncut key that matches your specific model and make. You can purchase them from the locksmith shop or at a car dealership, but it's important to get the right ones. If you attempt to use a key from another brand, it won't work.
To begin the process, insert the new key into the ignition and switch it to the "on" position. You'll need to keep the key in this position for about 10 minutes and 30 seconds. After the time has expired you can take off the key and observe whether the security light on your dashboard went out. If it didn't then you'll have to repeat the process for a third time.
Remember that this method will only work on GM vehicles but it's not 100% secure. If you're looking for a safer and reliable solution, then you should consult a professional locksmith or dealer to get your vehicle programmed with a chip. They have the tools and equipment required to connect to the diagnostics port in your vehicle and make the necessary changes.
Keyless Entry Systems
Keyless entry systems permit access to properties without the requirement of an actual credential. Security is achieved through sensors that are combined with an onboard computer. It is possible to control and monitor the system from any place within the property. Keys and locks are not required. The system can also detect stolen or lost cards and then deactivate them. In addition, the newest models are cloud-based and permit remote management and configuration.
Most modern cars come equipped with an entry system that is keyless. To enable this feature the car emits radio signals that are picked up by a particular key fob. The signals are compared to the code stored in the car's computer, and if all is in order, the car will unlock. car key programming will not start when the signals aren't identical. If your key fob isn't already programmed, it is possible to follow several steps to program it.
You'll first need to be sure that all doors, except the driver's door are locked. You'll need the original key fob and any other devices you wish to program. You can also check the local auto parts store to determine if they carry the right tool for your vehicle. If these steps don't work, you'll need check the owner's manual, or an expert locksmith.
Once you have the correct tool, you can follow the manufacturer's instructions to begin changing the program of your key fob. This process is often relatively quick and easy. You might be told to insert the new key into the ignition after closing all doors, and then press the button on the keyfob after the time frame. The car could then respond by turning off the door locks or emitting a sound to indicate that the key has been successfully programmed.
Many locksmiths use special tools to get around the EEPROM security built into your car's remote or key fob. This is a dangerous method and could cause data corruption in your car's computer. It is best to let a professional handle this as they'll be able to minimize the chance of data corruption and ensure that your keys are correctly programmed.
Transponder Keys
Transponder keys, sometimes referred to as chip keys, come with a microchip embedded in the head of the key. When the key is placed in the ignition lock barrel and turned into the ON position the antenna ring transmits an electromagnetic energy blast through the transponder chip. This energy is absorbed by the chip and it transmits a radio frequency signal with an identification code that is matched with the unique digital serial number of the car's computer system. This will prevent any unauthorised attempts to start the car, as only the correct key will be able to perform the task.
This technology is thought to be more secure than the traditional car key since it makes it more difficult for a criminal to "hot wire" the vehicle and then start it. But it's not foolproof and thieves have discovered ways to evade and defeat the system - so that even vehicles that have transponder keys aren't protected from theft.
You may be able program a transponder key by yourself when you have an appropriate key programmer for your car. The key programmer comes with a manual that will take you step-by-step through the process. Once you have the key and key programmer, follow the steps carefully and ensure that the security light on your dashboard is turned ON before turning your engine on.
If you're not comfortable programming keys or if your car has more advanced features like remote head keys or smart keys, you may turn to a professional locksmith help. They'll have the appropriate tools and equipment to cut the blank key, remove your old one from your computer in the car, and then program the new one so that it works correctly. This will save your time and money, and will help keep your car's security system working just as it should. It is also safer than doing it yourself. Utilizing the wrong key programming software or following unofficial guidelines could corrupt the information in the car's system, and result in the new key not working.
Remotes
If your car keys don't work, you might need to reprogram them. It's an easy process for most modern vehicles that have key fobs. However, certain models are more complex and need to be programmed with the help of a special device that's usually available from a dealer or auto locksmiths.
Fortunately, many modern car manufacturers have improved their key systems to be more secure to prevent theft of vehicles. The key system is designed to stop hot-wiring (the practice of using another vehicle's key to start the engine) and other similar methods. To make this process work you'll require at minimum two key fobs that are functioning for your vehicle. This is one of the main reasons why it's recommended to have at least one spare key available.
The keys have electronic chips which communicate with the car's receiver using radio signals. The computer compares the key's code with the database. If the codes match the car will begin. If not, the car will be dead or refuses to start. Luckily, most of these electronic keys can be replaced and programmed by a professional auto dealer or a locksmith with the right equipment.
The process is fairly simple if you are able to locate a key programmer that is cheap on the internet or in an auto parts store. You'll need to follow a set of steps which include inserting the ignition key, turning it on, without starting the vehicle, then shutting off the key. You'll need repeat the steps a specific number of times within the timeframe you specify to get your vehicle into programming mode. The door locks will cycle or a chime will sound.
Certain modern vehicles can only be programmed with the aid of a tool that's connected to the onboard diagnostics port, or an EEPROM programming process. Unfortunately, the majority of these tools are incredibly expensive, which makes them unaffordable for most car owners. Most car experts recommend consulting a professional auto dealership or locksmiths to program your keys.