Polaris Sportsman 570 Owner's Manual For Maintenance And Safety page 45

FEATURES AND CONTROLS
All Wheel Drive System
The All Wheel Drive system is controlled by the 4X4 switch.
4X4 Models ADC Models X2
ADC 4X4 Mode (if equipped)
When the switch is on ADC 4X4, the ADC system allows engine
braking to all four wheels when the vehicle descends a hill or incline.
Always move the 4X4 switch to ADC 4X4 before ascending or
descending a hill. See page 47.
4X4 Mode
When the switch is on 4X4, the ATV is in 4X4, and the 4X4 indicator
icon in the instrument cluster display will be visible.
When in 4X4, the demand drive unit will automatically engage any time
the rear wheels lose traction. When the rear wheels regain traction, the
demand drive unit will automatically disengage.
There is no limit to the length of time the vehicle may remain in 4X4.
The vehicle automatically engages 4X4 when operating in reverse if the
switch is set to the 4X4 position.
2X4 Mode
When the switch is on 2X4, the ATV is in two-wheel drive at all times.
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