What Causes a Car to Fail to Detect the Smart Key?

[PaisleeMarie]

Reasons why a car fails to detect the smart key: 1. The key's transmitter is damaged; 2. The car's receiver is damaged; 3. The door lock is damaged; 4. The battery in the key is dead. All these issues can be checked and resolved at a regular repair station. There are two types of keys with sensing functions: 1. Conventional folding mechanical key; 2. Hidden mechanical key. A smart key is a device that uses infrared signals to unlock one or two doors, the trunk, and the fuel tank cap, and can also control the car's windows and sunroof. When the driver approaches the car with the key in their pocket, the key and the car begin exchanging preset command information via radio waves, activating the car's locking system, security system, and engine control system.