With the selector lever, automatic switching can be adapted to a specific operating mode.
P - parking lock - an additional measure when leaving the car, it is possible only when the car is stationary.
R - reverse gear - install only when the car is stationary.
N - idle. There is no power supply from the engine to the rear axle.
When the brakes are released, the car is mobile: it can be pushed, towed, pushed. You can not set N during the trip (otherwise the car may skid. For example, in ice).
D - movement. All transmissions available. In normal mode, D gives optimum driving conditions.
Z - switching only up to 3 gears. Suitable for riding on long drops of medium steepness. Since the gearbox does not shift beyond 3rd gear, the brakes can also be used here.
2 - shifting only up to 2 gears. For driving in steep mountains, in mountains with a trailer, under difficult working conditions, as well as for engine braking.