Main Types of Car Keys: From Mechanical to Smart

Mechanical key
Are the most classic type of car keys, but they have a simple function set, with only three core functions: locking, unlocking, and ignition.

Their greatest advantage lies in the stable and reliable mechanical structure, plus cost-effectiveness.

Therefore, almost all new car models rolling off the production line are equipped with a mechanical key as a spare.

For most new cars, the spare mechanical key is usually hidden inside the remote key fob.

Remote key Fob

This type refers to the Remote Key Fob, the most commonly used key currently.

Most new cars use it, especially gasoline-powered ones. It has physical buttons, making it ideal for blind operation. Its essential functions include locking/unlocking,

opening/closing the tailgate, and one-touch window up/down.

Some models also come with customizable buttons, which can support functions like park assist and vehicle locator.

However, it is relatively power-hungry and requires prying open the case to replace the battery periodically.

Card Keys

New energy vehicles are now quite prevalent, and most of their new models are equipped with NFC Keys. These keys only support basic functions: locking and

unlocking the vehicle.

Their functionality is relatively limited, and you have to tap them when entering or exiting the car—a step that’s easy to forget at times.

Their strengths lie in being compact, lightweight, and highly portable; moreover, their ultra-low power consumption eliminates the risk of battery depletion.

Phone Digital Key

This type refers to the Phone Digital Key, the most feature-rich car key variant. Depending on the vehicle’s configuration, it can not only lock/unlock the vehicle and

operate doors but also control windows (up/down), lights, air conditioning, and seats. It also supports functions like vehicle location, monitoring the vehicle’s status

(e.g., battery level, tire pressure), and even advanced features such as scheduled charging and remote parking assist. It leverages multiple core connection

technologies, including Bluetooth, NFC, and UWB. Its drawbacks are a relatively slow response speed, and its reliance on a smartphone—risking failure if the phone is

damaged or runs out of power.

How about these keys?

 

 

May I ask what type of key your vehicle is equipped with?

Do you have a good grasp of how to operate all these key functions?