What does the circle A in a car mean?

2 Answers
Jackson
07/28/25 9:55pm
Car circle A represents the engine start-stop technology, and that A button is called the automatic parking system. Here are the specific explanations: 1. After turning on this switch, when your vehicle comes to a complete stop during driving, even if you release the brake pedal, the vehicle will not continue moving. It will only resume driving when you press the accelerator, at which point the system automatically deactivates. If you want to turn it off, you must do so manually. 2. Engine start-stop technology automatically shuts off the engine when the vehicle comes to a temporary stop (such as at a red light) during driving. When it's time to move forward again, the system automatically restarts the engine. 3. The working principle of the start-stop system is that when the vehicle stops moving due to traffic congestion or at an intersection, the driver presses the brake pedal and shifts to neutral. At this point, the Start/Stop system automatically checks: the engine is idling and not in gear; the wheel speed sensors of the anti-lock system show zero; the electronic battery sensor indicates there is enough energy for the next start. When these three conditions are met, the engine automatically stops.
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McElle
08/12/25 2:29am
When I first started driving, I noticed that button in the car with the circle and an 'A' on it. Later, I learned it was the Auto Hold function, which is quite handy. At red lights or in traffic jams, pressing it automatically locks the brakes, so you don't have to keep your foot on the brake pedal, relieving leg fatigue. It's especially useful for hill starts, which can be nerve-wracking—this feature automatically keeps the car from rolling backward, so you can just press the accelerator to go. Super practical. Now, I always turn it on when driving—it's a lifesaver in city traffic. Talking with friends, everyone agrees this technology helps new drivers get the hang of things faster and, most importantly, improves driving safety. Even during long stops, there's no worry about the car rolling away.
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