What is the slow shift of Honda Sidi automatic gear?

That's the lock button. When shifting gears, press it first, then move the gear handle to the required gear and then release it. If you don't press it, you can't move the gear handle. Automatic cars generally have P, R, N and D gears from front to back. P is the parking gear. After parking, you must put the gear handle in the P position to get off the key. R gear is reverse gear; N gear is neutral; D gear is the driving gear, which is used when the vehicle is driving. Take Forward as an example, specifically explain how an automatic transmission shifts gears: after getting into the driver's seat, first adjust the seat to a proper position and fasten the seat belt, then insert the key, press the brake pedal with your right foot, and turn the key to start the engine. When the vehicle starts and the instrument panel self-test indicator goes out, press the button on the side of the gear lever with the thumb of the right hand, pull the gear lever down to the D position, release the button, transfer the right foot from the brake pedal to the accelerator pedal, and press the accelerator pedal, and the vehicle can move forward.