Car Key Types: From Smartphones to Laser Cut

Car keys are an essential component of owning a car. You need them to access or open your vehicle every time you want to use it. Car keys have come a long way and have quite some history. In fact, they go back all the way to the early 1900s when the first cars were made. These early keys were typically made of metal and had a simple design. In contrast, today, we have all kinds of car key types. There are several types of car keys to choose from, each with its own set of features and advantages. Traditional metal keys are still widely used, but newer alternatives include transponder keys, remote keyless entry (RKE) fobs, smart keys, proximity keys, keyless entry systems with push-button start, laser-cut keys, smartphone apps, wearable devices, and biometric systems.

The type of car key you need depends on your needs and preferences. There is a car key type for everyone, whether you prefer the simplicity of a traditional metal key or the convenience of a smartphone app. In the following sections, we’ll go over each type of car key in greater detail, highlighting their features, benefits, and drawbacks.

Traditional Metal Keys

Metal keys are the most basic and widely used type of car key. They are typically made of metal, such as brass or steel, and have a simple design. These keys have been around since the beginning of time and have remained popular due to their durability and low cost.

Traditional metal keys have the advantage of being simple to duplicate or replace. Most hardware stores and locksmiths provide affordable key duplication services. Further, because these keys have been in use for so long, replacement keys for older vehicles are usually readily available.

Traditional metal keys, however, have some drawbacks. They are prone to wear and tear, which can cause them to become stuck in the ignition or door locks. They are also vulnerable to theft because they are easily picked or copied by someone with the appropriate tools.

Despite these disadvantages, traditional metal keys remain a popular option for many car owners. They are a straightforward and dependable option that gets the job done. Some vintage vehicles even require old-fashioned keys that are unique to their make and model, adding to the allure of owning an antique vehicle.

While traditional metal keys lack the features of newer car key types, they remain an excellent choice for those seeking a simple and long-lasting option. Traditional metal keys are a classic choice that will always have a place in the world of car keys, whether you have a vintage car or a newer model.

Transponder Keys

Transponder keys are a type of car key that communicates with the vehicle’s immobilizer system via an electronic chip. These keys have been around since the 1990s and are now found in many modern automobiles.

One advantage of transponder keys is that they provide extra security. The key’s electronic chip transmits a unique code to the car’s immobilizer system, which confirms that the correct key is being used. This makes hot-wiring or using a duplicate key to steal the vehicle more difficult.

Replacement of transponder keys can be more expensive than replacement of traditional metal keys. They also necessitate the use of specialized equipment, which can prolong and increase the cost of the process. Further, if the electronic chip in the key becomes damaged or malfunctions, the car may not start. Therefore, you may need to visit a dealership or a locksmith who specializes in transponder keys if you need a transponder key duplicated or replaced. These experts have the necessary tools and knowledge to program the key to work with your vehicle’s immobilizer system.

The Toyota Prius is one vehicle that makes use of transponder keys. Toyota specifically designed these keys to work with the car’s hybrid system and they are an important component of its overall security system. Therefore, while transponder keys are more expensive and require specialized equipment, they are a popular choice for many car owners due to their added security features.

Remote Keyless Entry

Remote Keyless Entry (RKE) fobs are small handheld devices that allow drivers to unlock and lock their vehicle doors remotely. These fobs have been around since the 1980s and are now standard in many modern vehicles.

One advantage of RKE fobs is their portability. Drivers can unlock their car doors without having to physically insert a key, which is especially useful when carrying groceries or other items. Further, RKE fobs frequently include additional features, such as panic buttons or trunk release buttons.

However, hacking and signal interference can occur with RKE fobs. Thieves can intercept and clone the fob’s signal, allowing them to unlock the car and steal its contents. Further, RKE fobs require batteries, which can run out over time and render the fob inoperable.

You can go to a dealership or a locksmith who specializes in car keys if you need an RKE fob duplicated or replaced. Some fobs, however, require programming, which may require the services of a dealership or a professional with specialized equipment. The Ford Focus is one vehicle that makes use of RKE fobs. 

Smart Keys

Smart keys are electronic devices that communicate with a vehicle’s security system to unlock and start the vehicle. They are also known as intelligent keys or proximity keys. These keys have grown in popularity in recent years and are now commonly found in many modern vehicles.

The convenience of smart keys is one of their benefits. Drivers can keep the key in their pocket or purse, and the vehicle will unlock automatically as they approach it. Further, some smart keys allow drivers to start the car remotely or even adjust the climate control settings before getting in.

Smart keys, on the other hand, can be costly to replace if lost or damaged, and they may not be as durable as traditional metal keys. Further, because these keys are vulnerable to hacking and signal interference, some drivers may be concerned about their security. In addition, if you need a smart key duplicated or replaced, you may need to visit a dealership or an electronic car key specialist. Some smart keys necessitate programming, which can only a dealership or a professional equipped with specialized equipment can do.

The Tesla Model S is one vehicle that makes use of a smart key. This vehicle has a key fob that allows drivers to unlock and start the vehicle without having to insert a physical key.

Proximity Keys

Smart proximity keys, also known as proximity keys, are similar to smart keys but provide even more convenience. These keys communicate with a vehicle’s security system via radio frequency identification (RFID) technology. A proximity key eliminates the need for drivers to physically press a button to unlock or start their vehicle. Instead, they must be within a certain distance of the vehicle, which varies depending on the make and model.

One advantage of proximity keys is their simplicity. Drivers can keep the key in their pocket or purse, and the car will unlock and start automatically when they approach it. Further, some proximity keys can adjust the car’s settings based on the driver’s preferences.

Proximity keys, on the other hand, can be more expensive to replace than smart keys, and they may be more vulnerable to hacking and signal interference. Further, some drivers may consider the constant communication between the key and the vehicle’s security system to be a security risk. In addition, if you need a proximity key duplicated or replaced, you may need to go to a dealership or a locksmith who specializes in electronic car keys. Some proximity keys require programming, which can only a dealership or a professional with specialized equipment can do.

The Audi A8 is one vehicle that makes use of a proximity key. Audi equipped this vehicle with a proximity key, which allows drivers to unlock and start the vehicle without physically pressing any buttons.

Keyless Entry Systems With Push-Button Start

A keyless entry system with a push-button start is a type of car key that allows drivers to enter and start their vehicle without the use of a physical key. They instead use a fob or card that communicates with the car via radio frequency. Once inside, the driver can start the car with the push of a button, without inserting a key into the ignition. This technology has been available since the early 2000s and has grown in popularity in recent years.

Convenience is one of the primary benefits of keyless entry systems. Drivers no longer need to fumble with keys to get into or start their vehicles. They only need to carry the fob or card, and the car will recognize it when they approach. Further, some keyless entry systems include features such as remote start, which allow drivers to start their vehicles from a distance.

However, there are some drawbacks to keyless entry systems. Security is a concern, as some car thieves have discovered ways to hack into these systems and steal cars. Further, if these systems are lost or damaged, they can be costly to replace.

Keyless entry systems can be more difficult and expensive to replace than traditional metal keys when it comes to key duplication and replacement. Some systems necessitate the use of specialized equipment to program new keys, while others may necessitate a trip to the dealership for replacement.

Vehicles with keyless entry and push-button start include the Nissan Altima, Honda Accord, and Toyota Camry.

Laser-Cut Keys

Laser-cut keys are a more advanced type of car key that is made with a laser rather than a traditional key-cutting machine. This technology is used to create a precise key capable of operating the car’s locks. Laser-cut keys first appeared in high-end vehicles in the 1990s. Keys that have been laser-cut are typically thicker and more durable than traditional metal keys.

One of the most significant advantages of laser-cut keys is their security. They are more difficult to duplicate than traditional keys because a specialized machine is required to make them. Further, laser-cut keys have a distinct pattern that is difficult to duplicate, making them more secure than traditional keys.

However, replacing laser-cut keys can be more expensive than traditional keys. This is due to the specialized equipment required to make the key. It is also worth noting that not all locksmiths have the necessary equipment to cut laser keys. Laser-cut keys can be more difficult to replace than traditional keys when it comes to key duplication and replacement. This is due to the key’s distinct pattern. It is critical to replace a laser-cut key with a certified locksmith or dealership.

Laser-cut keys are popular in luxury vehicles such as the BMW 7 Series, Mercedes-Benz S-Class, and Audi A8. We can also find these keys in some mid-level vehicles, including the Ford Fusion and Honda Civic.

Smartphone Apps That Can Unlock and Start a Car

In recent years, technological advancements have enabled us to control almost everything with our smartphones, including our cars. Smartphone apps that can unlock and start a car have grown in popularity, and many automakers are incorporating this technology into their vehicles.

Description and History

These apps communicate with the car’s computer system via Bluetooth or near-field communication (NFC), allowing drivers to unlock their car, start the engine, and even control various features remotely, such as adjusting the temperature or locking the doors.

BMW released the first app of its kind in 2011, and many other car manufacturers have since followed suit, including Hyundai, Ford, and Tesla.

Advantages and Disadvantages

Convenience is one of the most significant benefits of using a smartphone app to unlock and start your car. You don’t need to carry a separate key or fob, and you can even unlock your car from afar, making it easier to find in a crowded parking lot.

There are, however, some drawbacks. One source of concern is the app’s security and the possibility of hackers gaining access to your car’s systems. Further, relying solely on a smartphone app requires you to keep your phone charged and with you at all times.

Compatibility and Security Concerns

Note that not all smartphones are compatible with these apps, and some automakers only offer this technology on specific models or trim levels. Further, there have been reports of security flaws in some of these apps, so make sure you’re using a reputable app and keeping it up to date.

Examples

Users can use Hyundai’s Blue Link app to start their car remotely, unlock and lock the doors, and even set the temperature and activate the heated seats. Similar features are available in Tesla’s app, as well as the ability to activate your car from a parking spot and drive it to your location.

Overall, smartphone apps that unlock and start a car are a convenient and innovative technology, but it is critical to understand their limitations and potential security risks.

Wearable Devices that can Unlock and Start a Car

Smartwatches and fitness trackers, for example, are becoming more common in our daily lives. As a result, some automakers have incorporated these devices into keyless entry systems.

Description and history

Wearable devices used as car keys function in the same way that smartphone apps do. The device communicates with the car via Bluetooth or Near Field Communication (NFC), allowing the user to unlock and start the vehicle without the use of a physical key.

BMW was one of the first car manufacturers to release a smartwatch app that could unlock and start their vehicles. Other car manufacturers, such as Tesla and Hyundai, have since developed wearable device compatibility.

Advantages and disadvantages

The primary benefit of using wearable devices as car keys is convenience. Users can easily access their vehicle without carrying a physical key or even their phone. Further, these devices frequently include extra features, such as remote climate control and vehicle status monitoring.

Some users, however, may be concerned about the security implications of using a wearable device as a car key. There is also the possibility of device and car software compatibility issues.

Examples

The Tesla Model 3 is one example of a vehicle that can use wearable devices as keys. Tesla’s mobile app allows users to unlock and start their car using their smartphone or smartwatch.

You can also use the Apple Watch as a key for the Tesla Model 3. With the release of WatchOS 5, this feature was introduced, allowing users to unlock and start their car by simply wearing their watch.

Biometric Systems That Can Unlock and Start a Car

Description and History

To unlock and start a car, biometric systems use the driver’s unique physical characteristics. Fingerprint scanners, facial recognition technology, and even retina scans are examples of such systems. We’ve used them in high-security settings for years and are now being used in automobiles.

Advantages and Disadvantages:

The primary benefit of biometric systems is their extremely high level of security. Because each driver has a distinct physical characteristic, it is extremely difficult for someone else to gain access to the vehicle. Biometric systems are also very convenient because drivers do not have to carry any keys or devices.

However, biometric systems can be costly to implement and may not work in all situations. Facial recognition technology, for example, may struggle in low-light conditions, and fingerprint scanners may fail if a driver’s hands are wet or dirty.

Examples:

The Mercedes-Benz S-Class is a luxury vehicle with keyless entry and start that includes a fingerprint scanner. The 2022 Ford Mustang Mach-E comes equipped with a facial recognition camera that can recognize the driver and unlock the vehicle. According to reports, the upcoming Lucid Air electric vehicle will include a retina scanner for secure access.

Conclusion

Summary of car key types:

To summarize, car keys have come a long way from the simple metal keys of yesteryear. Traditional metal keys, transponder keys, remote keyless entry (RKE) fobs, smart keys, proximity keys, keyless entry systems with push-button start, laser-cut keys, smartphone apps, wearable devices, and biometric systems are all available today. Each key type has its own set of benefits and drawbacks, as well as key duplication and replacement procedures.

Future trends in car key technology:

We can expect car keys to become even more advanced and convenient as technology advances. The use of facial recognition, voice recognition, and gesture recognition to unlock and start a car are some potential future trends in car key technology. In addition, further integration with other smart devices, such as home assistants like Alexa and Google Home, is possible. Whatever the future holds for car keys, it is clear that they will continue to evolve and improve to meet the needs of drivers.

The image featured at the top of this post is ©Joseph M. Arseneau/Shutterstock.com.