1 (also labelled "L"): Restricts the transmission to 1st equipment only, also referred to as a "small gear". This is beneficial when a big torque is required with the wheels (such as, when accelerating up a steep incline); on the other hand use at larger speeds can operate the motor https://jeffreymrssq.blogdeazar.com/34312295/the-definitive-guide-to-gearbox-auto