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 need to be programmed in order to work.
Some car keys can be preprogrammed by the owner themselves but it's best to consult with a professional. This will avoid any damage to the computer system of the car and ensure that the key works properly.
How to program a key
Before the turn of the 21st century the majority of cars had basic key systems. The keys were made of metal and had grooves to correspond to the internal parts in the ignition cylinder. As time went on and technology improved as it did, automobile manufacturers began blending electronic and physical protocols to prevent theft. These key systems are called transponder keys or chip keys, and are designed to make it difficult for thieves to start the vehicle.
The key chips have an unique serial number that transmits a message to the receiver inside your car. When the signal is received it compares it with the code that is stored in the car's computer. If the codes are identical, your car will begin. If the codes aren't compatible, your car will not even start. This is one of the main reasons why you should always keep a spare key for your vehicle, especially when you use an electronic transponder.
You'll require specialized equipment to be able to program keys. You'll also need to purchase a blank key for your specific make and model. These can be purchased at the dealership or through a locksmith, but you must make sure that they are the correct ones. If you attempt to use a key from another model, then it won't work.
Begin by putting the new key in the ignition and turning it to "on". You'll need to keep the new key in this position for about 10 minutes and 30 second. When the time has passed you can take off the key and observe if the security light on your dashboard was gone. If it didn't then you'll need to repeat the process for a third time.
Be aware that this method will only work on GM vehicles, and it's still not completely secure. If you want a more secure and reliable solution, you can visit a locksmith or dealer to get your car programmed using an embedded chip. These professionals are equipped with the tools and equipment required to access the onboard diagnostics port in your car and make the switch.
Keyless Entry Systems
Keyless entry systems grant access to properties without the requirement for a physical credential. Security is achieved through a combination between sensors and an onboard computer. It is possible to control and monitor the system from anywhere in the property. Keys and locks are not required. The system can also identify and block stolen or lost cards. The newest models also allow remote management and configuration and are cloud-based.
Modern cars come with keyless entry systems. The system works by emitting radio signals that are detected by the keyfob. These signals are then compared to the correct code stored in the car's computer and when everything is in order the car will start to unlock. If the signals don't match, the car will not start. There are a variety of steps you can follow to program your new key fob if it isn't already programmed.
You'll first need to make sure that all doors, except the driver's door are locked. You'll also require the original key fob along with any additional keys you'd like to program. You can also visit your local auto parts store because they might have the right programming tool for your car. If none of these methods work, you will have to consult the owner's manual or an expert locksmith.
Once you have the right tool, follow the instructions of the manufacturer to begin changing the program of your key fob. The process is typically quick and easy. You might be told to put the new key into the ignition when all doors are shut and then press the button on the keyfob after a certain 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 use special tools to bypass the EEPROM security features that are built into your car's remote or key fob. But it's an extremely risky option and could lead to the possibility of corrupting the data on the computer in your car. This should be left to a professional who can minimize the risk of data corrupting and ensure that your keys are programmed correctly.
Transponder Keys
Transponder keys are also referred as chip key. They are equipped with an embedded microchip in the head of keys. When the key is placed in the barrel of the ignition lock, and turned to the ON position the antenna ring transmits an energy burst through the transponder chip. This energy is absorbed into the chip and sends back a radio frequency signal with an identification code that corresponds with the unique serial number that is stored in the car's computer system. This stops unauthorized attempts to begin the car as only the proper keys will be able to do so.
The technology is believed to be more secure than a traditional car key since it makes it more difficult for thieves to "hot wire" the vehicle to start it. But it's not foolproof and thieves have discovered ways to deceive and defy the system - so that even cars that have transponder keys aren't protected from theft.
Depending on the brand and model of your car, you may be in a position to program a brand new transponder key by yourself by using a key programming device that's compatible with your particular car. The key programmer comes with a user guide that will guide you step-by-step through the procedure. Once you have the key and a key programmer, follow the directions carefully and make sure the security light on your dashboard is turned on prior to turning your engine ON.
If you're uncomfortable the use of a key programmer or if your car has more advanced features like remote head keys or smart keys, you can turn to a professional locksmith for assistance. They will have the tools and equipment needed to cut a blank key, delete the old key from the computer of the car, and then program the new key to function correctly. This will save you time and money and will ensure that your car's security system operating just as it should. Plus, it's a lot more secure than doing it yourself! Making use of the wrong key programmers or following unofficial instructions could cause a problem with the information stored in your car's system, resulting in your new key not working.
Remotes
If your car keys don't work you may need to change the programming. It's an easy process for most modern vehicles which use keyfobs. However, certain models are more complex and require programming with the help of a special device that's usually available from a auto locksmith or dealer.
Fortunately, most modern car manufacturers have improved their key systems to be more secure in order to decrease the risk of theft from vehicles. The key system was designed to avoid hot-wiring which is using a key from another vehicle to start the engine of your vehicle. To ensure that this method works you'll require at minimum two key fobs that are working for your vehicle. This is one of the main reasons why it's best to have at least one spare key on hand.
The key fobs contain electronic chips that communicate using radio signals to the car's receiver. The computer checks the code of the key with the database. If the codes match, the car will start. If not, the car will not start or fail to start. Luckily, most of these electronic keys can be replaced and programmed by a professional locksmith or auto dealer equipped with the proper equipment.
The process should be relatively simple if you are able to find a cheap key programmer on the internet or at an auto parts store. You'll have to follow a specific sequence of steps that includes inserting the key into the ignition, turning it on, but not activating the engine, and then turning the key off. You'll have to repeat this a certain number of times within a certain time period for your vehicle to enter programming mode. The door locks will turn on and off or a chime will sound.
Some modern cars are only capable of programming using a device connected to the onboard diagnostic port or EEPROM programming. Unfortunately, most of these devices are very expensive, and therefore unattainable for the majority of car owners. Many experts in the field recommend consulting with an experienced auto dealer or locksmith to program your keys.
