What does ACC mean in a car?
2 Answers
ACC in a car refers to the ignition switch position, where the ACC state indicates the ignition switch's on/off status. Here's an introduction to car keys: 1. Overview: Essentially functions as a car remote control. 2. Functions: Besides controlling door locks, car remotes can operate windows and trunk release - both frequently used features in daily life. When needing to enhance air circulation for ventilation or odor removal, simply use the remote to lower windows. 3. Principle: The signal contains command instructions. The vehicle's antenna receives radio waves, which after authentication by the Body Control Module (BCM), triggers actuators to perform lock/unlock operations.
ACC in cars generally has two meanings. The most common one is Adaptive Cruise Control, which means the car can automatically adjust speed and distance to maintain a safe gap with the vehicle ahead, eliminating the need for constant throttle and brake pedal use. This feature is particularly useful on highways or in traffic jams, making driving more relaxed and safer. Some high-end cars even include automatic emergency braking to prevent rear-end collisions. The other meaning refers to Accessory Mode, where turning the ignition key to the ACC position only powers the car's electrical accessories—like the radio or charging ports—without starting the engine, thus preventing rapid battery drain. I recommend understanding ACC functions clearly while driving; trying adaptive cruise control indeed makes driving much less tiring.
