POLARIS Electronic Reverse Control (PERC)

Content Source: 2021 550 Indy 144 Owner’s Manual (9931273 R01) > Operation 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

POLARIS Electronic Reverse Control (PERC)

WARNING

Improper reverse operation, even at low speeds, may cause loss of control, resulting in serious injury or death. Damage will occur to the chaincase or transmission if shifting is attempted when the engine is operating above idle speed.

Shift to or from reverse only when the snowmobile is stopped and when engine speed is at idle.
Look behind the vehicle before and while backing.
Avoid sharp turns.
Apply throttle slowly.

Electronic reverse will activate only if the engine RPM is below 4000.

caution

Engaging the starter when the engine is running WILL result in serious engine damage, especially if the engine is in reverse. Never engage the starter when the engine is running.

Engaging Reverse

Stop the snowmobile and leave the engine idling.
Make sure the area behind your vehicle is clear.
Push the yellow reverse button on the left-hand control for one second, then release. The engine will automatically reduce RPM and start a reverse rotation. A flashing reverse light on the instrument panel will indicate that the vehicle is in reverse.

TIP

If the engine stops running, the snowmobile will be in forward gear when it's restarted.

Disengaging Reverse

Stop the snowmobile and leave the engine idling.

caution

Engaging the starter when the engine is running WILL result in serious engine damage, especially if the engine is in reverse. Never engage the starter when the engine is running.

Push the yellow reverse button for one second and release. The engine will slow and begin to rotate forward. The light on the instrument panel will shut off.
Apply the throttle slowly to make sure the vehicle is in forward.

High Altitude Setting

At altitudes above 6000 feet (1800 m), the engine will require a different ignition setting to improve the success of the reverse system. To set for a higher altitude, start the engine and hold the reverse button down until the light on the gauge flashes rapidly, then release the button.

To set the reverse for lower elevations, continue holding the button down until the reverse indicator light blinks slowly. Once set, it’s stored in memory until changed, whether the machine is running or not.