1 (also labelled "L"): Restricts the transmission to 1st gear only, often called a "very low equipment". This is helpful when a significant torque is necessary within the wheels (for example, when accelerating up a steep incline); however use at greater speeds can operate the engine at an excessive speed, https://gearbox-auto98406.blogdal.com/34601372/the-definitive-guide-to-gearbox-auto