What does ACC mean in a car?

[MacJordan]

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.

[LukeLee]

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.

[MiaLynn]

When I hear ACC, I think of asking the salesperson when buying a car. It actually stands for Adaptive Cruise Control, which allows the car to automatically follow the vehicle ahead, adjusting speed based on road conditions. It reduces fatigue and prevents distraction during long-distance driving. There's also an accessory mode—just turn the key to ACC to use the audio system or USB port to charge your phone, making it convenient to use after turning off the engine. As someone who often drives on highways, ACC is truly a lifesaver, especially in rainy weather or traffic jams, preventing panic. However, it's important to get into the habit of checking if the system is functioning properly. Safety first—don't rely on it too much; stay attentive and keep your hands on the steering wheel.

[MacChloe]

As a beginner driver, I was initially puzzled by the ACC symbol. After checking the manual, I learned it stands for Adaptive Cruise Control or Accessory Power Position. The former automatically controls speed, saving your foot from brake fatigue, while the latter allows you to turn on the radio without ignition to save fuel when parked. After practicing with adaptive cruise a few times, I got the hang of it. But don’t assume it’s fully automatic—drivers must stay alert to road conditions and set a safe distance without negligence. Paying attention to these features in daily driving can enhance the experience.