What is the button on an automatic transmission car?

[ElleDella]

The button on the automatic transmission lever is called the gear lock or shift lock button. Here is more information about the gear lock: 1. Without pressing this button, you cannot shift gears arbitrarily, which prevents accidental gear changes. It has two main functions: first, it prevents the driver from accidentally shifting into the wrong gear, which could cause the vehicle to move forward or backward unexpectedly and lead to an accident; second, it protects the transmission by preventing damage to the gears, thereby extending the transmission's lifespan. 2. Since automatic transmissions have hydraulic transmission mechanisms and the fluid flow has a certain inertia that cannot change abruptly, it is best to shift into reverse gear only after the vehicle has come to a complete stop. It is absolutely forbidden to shift the gear lever into P (Park) before the vehicle has fully stopped. After parking, you must turn off the engine and shift into P before you can remove the key. Many people are accustomed to stopping the car and immediately shifting into P before turning off the engine and applying the handbrake.