Polaris Sportsman 450 2021 Owner's Manual page 197

Active Descent Control (ADC)
System .................................. 39
ADC 4X4 Mode (if equipped)........ 37
Age Restrictions ........................ 13
Air Filter
Maintenance ....................... 129
Air Filter / Air Box..................... 151
All Wheel Drive System.......... 35, 38
2X4 Mode ............................. 36
EVAP Models
2x4 Mode........................... 38
ADC AWD Mode ................. 39
AWD Mode......................... 38
Automatic Transmission Gear
Selector ................................. 43
Auxiliary Foot Brake .............42, 123
Auxiliary Outlet.......................... 65
AWD (4x4) Mode ....................... 36
Battery .................................. 141
Identification ........................ 146
Installation .......................... 143
Battery Charge Port ................... 66
Battery Charging ..................... 145
Battery Maintenance ................ 152
Battery Removal...................... 141
Battery Storage ....................... 144
Boots ...................................... 12
Brake Fluid Level....................... 42
Brake Lever.............................. 40
Brake System Break-in ............... 69
Brakes .................................. 123
Bumper Light Adjustment .......... 133
California Residents ................. 190
Camber and Caster.................. 148
Cargo Warning.......................... 83
Clean the Exterior .................... 151
Clothing................................... 12
Clutching Chart ....................... 169
A
B
C
Cold Weather Operation.............. 81
Cooling System....................... 121
Crankcase Emission Control
System .................................. 97
Crossing Hillsides ...................... 17
Descending Hills Improperly ........ 17
Diagnostic Display Code
Definitions ............................ 173
Disengaging Active Descent
Control .................................. 39
Drive Belt Wear/Burn................ 177
Drive Mode Switch ..................... 34
Driving Over Obstacles ............... 79
Driving Procedures
Driving Downhill ..................... 75
Driving in Reverse .................. 80
Driving on a Sidehill
(Sidehilling) ......................... 76
Driving on Slippery Surfaces ..... 73
Driving Through Water............. 78
Driving Uphill ......................... 74
Parking on an Incline ............... 82
Electromagnetic Interference ....... 97
Electronic Power Steering (EPS)... 66
Emissions Limited Warranty....... 188
Engaging Active Descent
Control .................................. 39
Engaging AWD ......................... 37
Engine and Drivetrain Break-in ..... 69
Engine Backfires ..................... 179
Engine Doesn't Turn Over ......... 179
Engine Oil ...............................114
Engine Pings or Knocks ............ 180
Engine Runs Irregularly, Stalls
or Misfires ............................ 180
Engine Stops or Loses Power .... 181
Engine Turns Over, Fails to
Start .................................... 179
Exhaust Emission Control
System .................................. 97
D
E
195