What does the R gear position mean?

[LaIsaac]

The R gear position stands for Reverse gear. Once you shift the gear lever into R position, you can start reversing the vehicle. An automatic transmission typically refers to a car's automatic gear-shifting mechanism, where the transmission control system automatically selects the appropriate gear based on engine speed and load during driving, replacing the driver's subjective judgment of timing and gear-shifting operations. A standard automatic transmission car usually has six gear positions, arranged from top to bottom as: P, R, N, D, S, L. The automatic transmission utilizes planetary gear mechanisms for gear shifting, which can automatically change gears according to throttle pedal position and vehicle speed changes. The driver only needs to control the speed by operating the accelerator pedal.