1 (also labelled "L"): Restricts the transmission to 1st gear only, often known as a "minimal gear". This is beneficial when a large torque is required in the wheels (for instance, when accelerating up a steep incline); nevertheless use at increased speeds can operate the motor at an abnormal pace, https://cristianafecz.blogdon.net/5-easy-facts-about-gearbox-auto-described-50206650