What is the button with an 'A' inside a circle in a car?
2 Answers
The button with an 'A' inside a circle in a car is the switch for the auto start-stop system. Pressing this button can turn the auto start-stop system on or off. Here is some related information: 1. The auto start-stop system automatically shuts off the engine when the vehicle comes to a temporary stop (such as at a red light) and restarts the engine when it's time to move forward again. 2. The auto start-stop system is equipped with an enhanced motor that has idle start-stop functionality, allowing the engine to completely shut off when the conditions for idle stopping are met. When the vehicle needs to start moving again, the idle start-stop motor system quickly responds to the driver's command, rapidly restarting the engine for seamless operation, thereby reducing fuel consumption and exhaust emissions.
I've been working in auto repair shops for over a decade, and customers often ask about that button with an 'A' inside a circle. It's actually the switch for the auto start-stop system. When driving, this feature automatically shuts off the engine when you stop at traffic lights to save fuel; when the light turns green, releasing the brake quickly restarts the engine, significantly reducing fuel consumption and emissions. But I must remind you that frequent engine starts and stops in heavy traffic can accelerate battery wear and may temporarily pause the car's air conditioning, affecting comfort. The button is usually located at the lower left of the dashboard or near the steering wheel, with the indicator light on meaning the system is deactivated. In rainy weather or poor road conditions, it's best to manually disable it to avoid startup delays. Overall, this feature is quite practical—don't underestimate it. Have technicians check its proper functioning during each maintenance to extend component lifespan.
