
A stands for the automatic handbrake, also known as the auto-hold system. Below are the usage instructions for the automatic handbrake: 1. For long-term parking, the vehicle will stop after stepping on the brake pedal. Pull up the 'A' button, and the vehicle's braking state will be the same as with a mechanical handbrake. 2. To release the electronic handbrake function, simply step on the pedal and press the button. Here is additional information about the auto-hold system: 1. The auto-hold (AUTO-HOLD) is an extension of the vehicle stability control system, primarily relying on the intelligent braking system. This function can only be achieved in vehicles equipped with an ESP braking control system. 2. When the driver initiates braking, if the vehicle does not need to brake for a long time, unnecessary sliding of the vehicle can be avoided. 3. When encountering a traffic light requiring a short stop, pressing this button will automatically brake the wheels after the vehicle comes to a complete stop, preventing rolling. This is equivalent to not needing to pull the handbrake, and it also simplifies operations by avoiding the use of a handbrake or electronic handbrake.

I also wondered about this little A button when driving my friend's new Civic. Actually, if you press it while driving, the dashboard will show a prompt - it's the auto start-stop switch! This feature specifically addresses fuel consumption during traffic jams or at red lights. When you come to a complete stop by pressing the brake, the engine automatically shuts off, and it restarts when you slightly release the brake. However, during heavy rain or when stuck in underground parking, it's better to turn it off. If the exhaust pipe gets submerged, a secondary engine start could potentially ruin the engine. For daily commutes with good road conditions, keeping it on saves fuel - you save a few seconds of fuel consumption at each red light. But it can be annoying when using AC, as the air conditioning temporarily stops after engine shutdown before restarting.

I've encountered many people asking about this mysterious A button while repairing cars. In reality, it simply controls the auto start-stop function. When waiting at a red light, press the brake pedal firmly to bring the car to a complete stop, and the engine will shut off automatically. Lift your foot, and it restarts instantly. Experienced drivers often turn it off before driving, especially during half-hour traffic jams with constant stop-and-go—those frequent restarts can drive you crazy! There's another hidden risk: if you don't disable auto start-stop when driving through water, the engine may automatically restart after exhaust pipe submersion, leading to major repairs! For self-, pay attention to the battery—start-stop compatible batteries cost twice as much. If the battery is chronically undercharged, the auto start-stop won't function.

When I first got my Civic, I was also confused about the 'A' button next to the gear shift. After checking the manual, I learned it's called the auto start-stop function. As long as you're wearing your seatbelt and the doors are closed, when you come to a stop at a red light and press the brake pedal firmly, the engine automatically shuts off, and it restarts immediately when you release the brake. However, it's better to turn it off during scorching summer days because the air conditioning compressor stops with the engine, making the car feel like a steamer. In my tests, keeping it on reduces fuel consumption by about 0.5 liters per 100 kilometers. The key thing to remember is to manually turn it off when driving in the rain; otherwise, the engine might suddenly shut off when going through water, which could be a big problem.

The other day while teaching my daughter to drive, she kept pointing at the A button on the Civic's gearshift and asking questions. That's actually the auto start-stop button - holding it for 2 seconds until the indicator lights up means the function is disabled. The most crucial thing is to turn it off when driving through waterlogged roads; it's even more important than turning on the AC! I've personally seen engines that needed 20,000 yuan overhauls after automatically restarting in deep water. For daily traffic jams, I recommend disabling it, as frequent start-stops not only make passengers uncomfortable but also affect the starter motor's lifespan. The infotainment system can show fuel savings from each start-stop cycle - long-term use does save some gas money.


