What does 3D-2-L mean in an automatic transmission car?

[AshleyDella]

D stands for Drive, 3 is also a forward gear, 2 represents 2nd gear, and L is 1st gear. Introduction to automatic transmission cars: Generally using an automatic transmission (AT) to regulate speed, these vehicles automatically select the appropriate gear based on engine speed and load through the transmission control system, replacing the driver's subjective judgment of timing and gear shifting operations. In simple terms, an automatic transmission car is a kind of "fool-proof car". Types of transmissions: There are mainly two types of automatic transmissions used in cars. One is the stepped automatic transmission, and the other is the continuously variable transmission (CVT). The most commonly used in passenger cars is the mechanical continuously variable transmission, which uses a V-shaped metal belt or chain to transmit torque between the driving and driven pulleys in their V-shaped grooves. This transmission method is typically used in smaller vehicles.