Content Source: 2021 Indian Vintage Dark Horse / Indian Vintage / Indian Springfield Dark Horse Owner’s Manual (9939979 R01) > Instruments, Features and Controls Chapter

IMPORTANT

The Owner's Manual for this vehicle contains warnings, instructions and other information you must read and fully understand before safely riding or performing maintenance on this vehicle.Always follow the warnings and instructions in Owner's Manual.

Click the CONTENTS link above for the Table Of Contents, or download a full PDF of the Owner Manual in the Owner Support area of Polaris.com

Rear Cylinder Deactivation

Designed as an aid to reduce engine and exhaust heat to the rider, Rear Cylinder Deactivation turns off the rear cylinder when the engine gets hot.
The following condition must be met for Rear Cylinder Deactivation to be enabled.
  • Engine must be up to operating temperature
  • Ambient Temperature must exceed 15 C
  • Engine speed must remain below 1000 rpm
  • Gear position must be 1, 2, or N
  • Throttle must be in the closed position (0% throttle)
For cruiser models, do the following to disable Rear Cylinder Deactivation:
  1. Press the right-hand trigger until “CYLdeAC” displays.
  2. Hold down the right-hand trigger. “CD ON” or “CD OFF” will display.
  3. Toggle to turn cylinder deactivation on or off. Press and hold hand right-hand trigger to save settings.
    • CYLdeAC ON: rear cylinder can deactivate
    • CYLdeAC OFF: rear cylinder cannot deactivate

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