Polaris RANGER XP 900 2017 Owner's Manual For Maintenance And Safety page 56

OPERATION
Active Descent Control (ADC) System (if equipped)
The ADC system allows engine braking to all four wheels when
the vehicle descends a hill or incline.
• Always operate in low gear and engage ADC 4X4 when
transporting heavy loads and/or when towing.
• Always operate in low gear and engage ADC 4X4 before
ascending or descending a hill.
Engaging Active Descent Control
The ADC switch has two positions (ON/OFF). ADC will
activate when all of the following conditions are met:
• AWD mode is engaged.
• No throttle applied.
• Vehicle speed is between 1-12.5 MPH.
ADC switch is in ON position.
Disengaging Active Descent Control
The ADC system will automatically disengage if at least one of
the following conditions occur:
• ADC Switch has been turned off.
The transmission is shifted to neutral or park.
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