What is the function of the fourth button on the Hongqi H5 key?

[MacRylee]

The fourth button on the Hongqi H5 key is the engine remote start function. Here are the specific details about the remote start: 1. Introduction: The remote start function, as the name suggests, allows the vehicle to be started without entering the car, by remotely controlling the engine. The principle is to send a signal through the key or a mobile phone to remotely start the engine. Most models can be controlled via the car key, while some models also support remote control through dedicated mobile apps, offering even more functions on the phone. 2. Application: The purpose of this function is to eliminate the need for manually entering the car to 'warm up' the engine, making it convenient to preheat the vehicle in advance. This means the interior temperature can be raised beforehand, ensuring a comfortable experience when entering the car. This feature is particularly useful in cold regions.