The integration of smart key blade blanks with keyless entry and push-button start systems represents an advancement in automotive security. Most modern vehicles now feature keyless entry, which allows owners to unlock and start their car without having to physically insert a key into a lock or ignition. The key fob communicates with the car wirelessly, unlocking the doors and enabling the engine to start with the press of a button.

However, in instances where the electronic system encounters a problem, the key blade blank can still provide access. Many smart key fobs have a hidden key blade that can be removed and used for this purpose. The role of the key blade in these systems is to ensure that the vehicle remains functional even in the event of technical failures with the fob or electronic components. This backup system adds a layer of security and reliability, ensuring that the vehicle can still be operated under most circumstances.

Car key blade blanks are often vehicle-specific, meaning that each blade is designed to match the ignition and lock system of a particular car model. These blanks are usually not usable right out of the box; they need to be cut and programmed to match the specific vehicle. This customization can be done by a professional locksmith or at a dealership that has the necessary tools and equipment to program the key to the car's security system.

Programming the smart car key blade blank typically involves embedding a transponder chip into the key or syncing the blade with the car's onboard computer system. This process ensures that the key blade is not just a generic piece of metal but a unique, coded key that works only with the designated vehicle.

Many car owners may opt to keep an extra smart key blade blank as a spare, which can be cut and programmed if the original key is lost or damaged. Having a spare key blade can provide peace of mind, knowing that the vehicle can still be accessed in the event of an emergency or mishap.

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.