The term 'transmission setting' refers to the settings of a vehicle's transmission system, which is responsible for controlling the power and speed of the vehicle. The four crossword solutions for this term are PARK (4 letters), GEAR (4 letters), LOW (3 letters), REVERSE (7 letters), and DRIVE (5 letters). PARK is the setting used when the vehicle is parked and not in use. GEAR is the setting used to change the speed of the vehicle. LOW is the setting used to reduce the speed of the vehicle. REVERSE is the setting used to make the vehicle move backwards. DRIVE is the setting used to make the vehicle move forwards.