What does 'cancel' mean in a car?

[DeAshlyn]

CANCEL is used to deactivate the cruise control, SET is to set the current speed as the cruising speed, and RESUME is to restore the original cruising speed. Cruise control system is also known as speed control device, speed control system, or autonomous driving system. When the CANCEL button is pressed during cruising, the cruise control will be temporarily suspended, and the CRUISE indicator light above the water temperature gauge will turn off. Its function is to automatically maintain the vehicle speed as set by the driver without the need to press the accelerator pedal, allowing the car to travel at a fixed speed. Installing a cruise control system in a car enables the driver to avoid controlling the accelerator pedal during long highway drives, reducing fatigue and unnecessary speed changes, which can save fuel consumption. The working principle of the cruise control system is that the cruise control component reads the pulse signal from the speed sensor, compares it with the set speed, and issues commands to mechanically adjust the throttle opening via the servo to keep the vehicle at the set speed. Other button functions in the car are as follows: Fuel tank opening button: This button is used to remotely open the fuel tank cap from inside the car. Vehicles equipped with this button allow the driver to open the fuel tank cap from inside the car. ESP switch: This is used to turn the vehicle's ESP on or off. The vehicle's ESP system is in the working state by default. Reverse radar button: This is used to turn the reverse radar system on or off as needed. The driver can press this button to manually control the operation of the reverse radar. Central locking button: This is the control button for the central door lock system. The driver can press this button to simultaneously lock or unlock all doors. Air conditioning button: In extreme temperatures during summer and winter, drivers and passengers often turn on the air conditioning for comfort. However, incorrect operation of the air conditioning button can affect its effectiveness. Wiper button: Wipers are commonly used in rainy weather and when the windshield is dirty. Front and rear hood buttons: The front hood is rarely opened, usually only for maintenance and repairs, while the trunk is opened more frequently. These two buttons are generally located on the left side of the driver's position. Lane departure warning switch: Pressing this button activates the lane departure warning function, which alerts the driver when the vehicle crosses lane markings. MODE button: Pressing this button switches between audio modes such as CD, radio, or Bluetooth. Window lock button: Pressing this button allows only the driver to control the window operation, effectively preventing children in the front passenger or rear seats from opening the windows.