What does the R gear in a car mean?

[DelTimothy]

The R gear in a car is the reverse gear, which allows the vehicle to move in the opposite direction and enables backward movement. In manual transmission vehicles, it also serves as a hill-holding function. When parking on a downhill slope, the R gear can mechanically lock the drive shaft. However, it should not be overly relied upon, as the primary braking system of the vehicle is responsible for braking. Using the R gear for braking can be hazardous. Methods for using the R gear: 1. For vehicles with automatic transmissions, first press the brake pedal and then press the safety button on the gear lever or push down the gear selector to engage or disengage the R gear. 2. For vehicles with manual transmissions, first bring the vehicle to a complete stop, then depress the clutch and brake, shift into the R gear, and finally perform a semi-clutch operation with slight acceleration.