In today's world, car keys have evolved far beyond the traditional metal key. Modern vehicles are equipped with advanced technologies that prioritize both security and convenience, and one of the key innovations in this area is the smart car key. A smart car key typically consists of two components: a key fob, which handles the electronic functions, and a key blade, which is used for traditional mechanical locking mechanisms.

A smart car key blade blank is essentially a raw, uncut version of the key blade that is designed to fit into the key fob of a smart car key system. While the key fob handles most of the electronic functions—such as remote unlocking, keyless entry, and starting the car—the key blade blank is a mechanical backup. This blade is used to manually unlock the car door or start the vehicle in case of a malfunction or failure of the electronic system.

Car key blade blanks are made from durable materials, often stainless steel or a similar robust alloy, to ensure they can withstand daily use and wear. The blade itself is typically cut to the shape of the car's ignition or door lock, and the blank is then customized or programmed to match the specific vehicle's system.

One of the key roles of smart car key blade blanks is to provide a mechanical backup in case the electronic system fails. While the convenience of keyless entry, push-to-start buttons, and remote car tracking has made car keys more advanced, the electronic components of these systems can sometimes experience malfunctions. For example, the key fob's battery may die, the system's electronic components may malfunction, or the car may fail to recognize the key due to an issue with the fob's signal.

In such situations, the smart car key blade blank serves as a backup solution to ensure that the car owner can still access and operate their vehicle. For instance, the blade can be inserted into the car's door lock to gain entry when the key fob fails. If the vehicle's ignition system doesn’t recognize the electronic signal from the key fob, the key blade can also be used to manually start the car (if the vehicle is designed to allow this).

https://www.hc-key.com/product/smart-key-blade/
Applicable models：    BYD-Tang DM BYD-Song DM EV MAX Pro BYD-Qin Pro
Product material:    Brass
Surface treatment: 
Non-electroplated nickel
Product specification:     1.7×7.8×43
Product unit weight:    6.8 g
Product advantages:     Easy cutting, easy processing.