How Car Keys Work
Car keys are more than just simple pieces of metal; they’re the gateway to starting and driving your vehicle, often with added layers of security built in. Understanding how they work can help you navigate the process of getting a replacement when needed.
The Basics of Car Keys
Traditional car keys were just that—keys. They were cut from a piece of metal and could be duplicated easily by any locksmith. These keys were straightforward and relatively inexpensive to replace. However, as car theft became more prevalent, automakers began introducing more sophisticated key designs to enhance vehicle security.
Understanding Transponder Keys
Around 75% of the cars on the road today have a chip in the key, and that’s a little more complicated for duplicating a key. But why is a transponder key necessary?
If your vehicle originally came with a transponder key, it will not operate if you use only a key blank without the correct, programmed chip. It’s a security feature that was introduced in 1985 but only gained widespread acceptance around 2000. The intent, as you might figure, is to prevent auto theft or at least make it much more difficult.
The vehicle has a module or sensor that ‘looks’ for a chip’s radio frequency identification code, or RFID, when the ignition is turned over. Not only does the chip need to be present, but it needs to be programmed or trained to match the code the vehicle requires, or it won’t start.
Your transponder key might be the blade style that still needs to be inserted into the ignition cylinder, or it could be integrated with a key fob. It could also be the type that stays in your pocket or purse with a push-button ignition. All these styles must be programmed before they can be use.
Keyless Entry and Push-Button Ignitions
Modern cars may also come with key fobs or remote keyless entry systems. These fobs allow you to unlock and start your vehicle without even taking the key out of your pocket. The car recognizes the signal from the fob as long as it is within a certain range, allowing you to start the car with the push of a button.
Much like transponder keys, these fobs also require programming to work with your specific vehicle. If the fob’s code doesn’t match what the car expects, it won’t start. while AutoZone does not offer cutting or programing services, you can find a wide selection of key fobs at your local AutoZone store.
Take Advantage of Other AutoZone Services
Though AutoZone no longer offers key cutting, you can still get assistance with your vehicle needs with service such as battery testing, fix finder, and other services at your local AutoZone store.
FAQ/People Also Ask
Does AutoZone cut blank keys?
AutoZone no longer offers key cutting services as of August 2024.
How long does it take to make a key?
It only takes a few minutes to cut a new key for your car, and programming a transponder key only extends the process by a few more minutes.
How do you cut a car key?
Keys are specific to your vehicle, and a current working key needs to be present. The contours are copied by a machine to accurately shape the key blank to match your current ignition key.
Does my car key have a chip in it?
If your key is integrated into a key fob or it has a thick grey or black head on it, it’s likely a transponder key. That means it has a chip in it that needs to be programmed before it can start your car.
