What does ACC status mean?
2 Answers
ACC status refers to the ignition switch position. Generally, automotive ignition switches have four positions labeled with letters "LOCK-ACC-ON-START". The full English name of ACC is "Adaptive Cruise Control". Below is relevant information: About vehicle starting methods: After inserting the key into the ignition switch, pause momentarily at each position for about 1-2 seconds. You can hear the sound of electrical equipment powering on, then proceed to the next position. Some vehicles can directly enter the ON position, then wait approximately 6-7 seconds for all electrical systems to fully initialize before turning the key to START position for ignition. ACC function: During vehicle operation, the distance sensor (radar) installed at the front continuously scans the road ahead while wheel speed sensors collect speed signals. When the distance to the preceding vehicle becomes too small, the ACC control unit can coordinate with the anti-lock braking system and engine control system to apply appropriate wheel braking and reduce engine output power, maintaining a safe distance from the vehicle ahead.
The ACC state is a very common thing for me. Years of driving experience have taught me that it's when you turn the car key to the first position, the vehicle only powers the electronic accessories, such as the radio, power windows, or cigarette lighter socket, but the engine doesn't start. This is very practical when waiting in the car or during temporary stops. I can play some light music to relax, and it's also energy-saving and environmentally friendly. However, I must remind you that prolonged use of ACC can drain the battery. Like the time I waited with my child for a full half hour without noticing, resulting in a dead battery and the car not starting, forcing me to call for help. So I recommend using it only for short stops and developing the habit of checking whether the accessory power is turned off. The ACC state also helps diagnose problems, such as if the headlights don't work, you can first check here to see if a fuse is blown, avoiding unnecessary trouble.
