What does the car circle 'a' mean?

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The displayed 'a' refers to the car's automatic parking system. Here is the relevant information: When this switch is turned on, even if the vehicle is braked to a stop during driving, it will remain in the braking state and will not continue moving until the accelerator is pressed again. The design concept of the automatic start-stop system is primarily a function developed by manufacturers to save gasoline. Cars equipped with this feature can save approximately 10% to 15% of fuel annually. The dashboard light information in the car includes the following names and functions: ① Hazard warning light. This light alerts other vehicles and pedestrians when the vehicle experiences a major malfunction or emergency situation. It is indicated by the simultaneous flashing of all turn signals. ② Battery indicator light. This light primarily indicates the working status of the battery. If it does not light up for a long time or remains lit continuously, promptly check the generator and circuit board for short circuits. ③ Fuel indicator light. This light effectively allows the driver to assess the vehicle's fuel situation. Once the fuel indicator light comes on, it means the vehicle's fuel is about to run out.