How to Program a Car Key
Modern cars come with more than just a key to start the engine. They also have a remote that can lock and unlock doors. Key fobs have to be programmed in order to function properly.
Some car keys can be programmed by the owner himself, but it's best to consult with a professional. This will ensure that there is no damage to the computer system of the car and ensure that the key functions correctly.
How do you program a key?
The majority of cars had basic keys systems up until the turn of 21st century. The keys themselves were metal and featured grooves that matched the internal components of the ignition cylinder. As technology improved, more and more automobile makers began to combine electronic and physical protocols to stop theft. These key systems are referred to as transponder keys or chip keys and they're designed to make it harder for thieves to start the vehicle.
The key chips have unique serial codes which transmits a signal to the receiver in your car. When the signal is received, it compares it to a code stored in the car's computer. If the codes are similar then your car will begin to start. If the codes aren't compatible, your vehicle won't start at all. This is the reason you should keep an extra car key especially if the system is transponder-based.
You'll require specialized equipment to learn how to program keys. You'll need an uncut key that matches the car's model and make. You can purchase them from an auto locksmith or a locksmith dealership, but it's important to purchase the correct keys. If you try to use a key that is from another model, then it will not work.
To begin the process, insert the new key into the ignition and turn it to the "on" position. You will need to leave the new key in this position for about 10 minutes and 30 seconds. After the time is up you can take out your key and see if the security indicator on your dashboard has gone out. If it didn't go out you'll have to repeat the procedure a third time.
This method is only compatible with GM vehicles, and isn't 100% secure. If automotive key programming looking for a secure and reliable solution go to an auto locksmith or dealer to have your car programmed using an embedded chip. They will have the tools and equipment needed to access the diagnostic port on your car's motherboard and make the switch.
Keyless Entry Systems
Keyless entry systems permit access to properties without the need for a physical ID. Security is provided by sensors that are combined with an onboard computing device. This lets you manage the system and monitor activity from any location on the property, and it does away with the need for keys or locks. The system is also able to detect and block stolen or lost cards. The newest models also allow remote management and configuration, and are cloud-based.
Modern cars are equipped with keyless entry systems. To accomplish this it emits radio signals which 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 start to unlock. If the signals do not match then the car won't start. If your key fob has not been already programmed, you can follow several steps to programme it.
You'll first need to make sure that all doors excluding the driver's door are locked. You'll need the original key fob along with any extras that you want to program. You can also try the local auto parts store because they might have the right programming tool for your car. If these steps don't work, you'll have to go through the owner's manual or an expert locksmith.
Once you have the right tool, you can begin the changing the programming of your key fob following the instructions of the manufacturer. The process is typically quick and easy. For example, you might be directed to insert your new key into the ignition with all doors closed and then press a button on the key fob within a brief time. The car may respond by turning off the door locks or emitting an audible chime as an indication that the key has been successfully programmed.
Many locksmiths have special tools that let them bypass the built-in EEPROM security in the car's key fob or remote. But it's a risky method and could lead to the possibility of destroying the data on the computer in your car. This should be left to a professional who can lower the chance of data corrupting and ensure that your keys are properly programmed.
Transponder Keys
Transponder keys are also known as chip key. They are equipped with a microchip embedded inside the head of the keys. When the key is inserted into the barrel of the ignition lock, and turned into the ON position the antenna ring emits an energy burst through the transponder chip. This energy is absorbed by the chip and sends back the radio frequency signal, which includes an identification code that corresponds with the unique digital serial number that is stored in the car's computer system. This stops unauthorized attempts to begin the car, as only right keys can be used.
This technology is thought to be more secure than a conventional car key, as it makes it harder for a thief "hot wire" the vehicle and then start it. It's not foolproof and thieves have found ways to evade detection and defeat the system. So even cars equipped with transponder keys aren't immune to theft.
You could be able to program a transponder key by yourself if you have an appropriate key programmer for your vehicle. The key programmer should include an instruction manual that will guide you through the process of programming your key. Once you have the key and a key programmer, follow the directions carefully and ensure the security light on your dashboard is turned ON before turning your engine on.
You can ask a professional locksmith to help you if you are not confident with a key programmer or if you have a car with more advanced features, such as remote head keys or intelligent keys. They'll have the tools and equipment needed to cut blank keys, erase the old one from the computer of the car, and program the new key for it to work correctly. This will save your time and money, and will keep your car's security system functioning exactly as it should. Additionally, it's much safer than making it yourself. Making use of the wrong key programmers or following unofficial guides can cause a problem with the information stored in your car's system, resulting in your new key not working.
Remotes
If your car keys aren't working it could be necessary to change the programming. This is a straightforward procedure for a lot of modern cars that use key fobs. However, some models are more complicated and need to be programmed with the help of an additional device that's typically available from the dealer or auto locksmith.
To decrease the risk of theft from vehicles, modern car manufacturers have improved the security of their key systems. The key system was designed to stop hot-wiring (the method of using the key of another vehicle to start the engine) and other similar methods. To make this process work, you will require at minimum two key fobs that are working for your vehicle. This is one of the main reasons why it's recommended to have at least one spare key on hand.
Key fobs are equipped with electronic chips that transmit radio signals to the car's receiver. The computer examines the code of the key with the database. If the codes match the car starts. If the codes don't match then the car will not start or remain dead. Most of these electronic key can be programmed and replaced by a professional locksmith or dealer in the field with the appropriate equipment.
If you can find a cheap car key programmer on the internet or at an auto parts store, the procedure will be relatively simple. You'll have to follow a set of steps which include inserting the ignition key, turning it on without actually starting the car, and then turning off the key. You will need to repeat the steps a specific number of times over an exact time period to put your vehicle in programming mode. The door locks will cycle or a chime will sound.
Certain cars of the present can only be programmed with the aid of a tool that's connected to the onboard diagnostics port or an EEPROM programming procedure. Unfortunately, most of these tools are incredibly expensive, making them unaffordable for most car owners. As such, most car experts recommend to consult an experienced locksmith or auto dealer for key programing services.