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2010 Sno Pro 500 Reflash

2010 Sno Pro 500 ECU

For those of you with a 2010 Arctic Cat Sno Pro 500, it looks like a reflash is coming your way, free of charge, to improve its low-RPM drivability.

Below is copy of the letter Arctic Cat sent to its dealers.


July 12, 2010

Dear Arctic Cat Snowmobile Owner,

RE: 2010 Sno Pro 500


Our records indicate that you are a registered owner of at least one of the affected snowmobiles.

It has been determined that driving the affected model at low RPM does not meet Arctic Cat standards and/or expectations and needs to be updated.

Please take your snowmobile to an authorized Arctic Cat snowmobile dealer as soon as possible to have the dealer reprogram the Engine Control Unit (ECU). Once the ECU has been reprogrammed, the dealer will adhere a decal to the existing ECU showing the ECU has been updated.

The repair should be completed the same day you bring your snowmobile(s) into the dealer. Affected snowmobiles are eligible for the stated repair from the date of this letter forward.

This service work will be done at no charge to you. If you have sold the affected snowmobile, please complete and and return the self-addressed card.

To ensure your full protection under the emission warranty on your engine by federal law, we recommend you have the above mentioned service done as soon as possible. If you do not have the ECU reprogrammed, Arctic Cat may consider this to be improper maintenance.

If you have any difficulty in obtaining service or repairs regarding this issue, call Arctic Cat at 1-800-279-6851.


Product Service and Warranty Department

Arctic Cat Sales Inc.



  1. I my self Matt have been asking my dealer the same exact question,, my mid range to top end is excellent and I do not want to risk messing that up if indeed it’s a whole map reflash,, if it can be kept at idle to engagement range of map, by all means it’s a go with me,, but only if down low!!

    Anybody out there from Arctic Cat reading?????????????

  2. Matt, I have a 2010 sno pro 500 and had the remaping done.I have 300 miles on it now and have a terrible low end bog that sucks big time. mid and top are fine though.My clutch is not engaging smooth at all either.When u brake into a corner and then punch it is when my bog is there,or trying to feather the throttel the clutch across a road isnt smooth at all. Hopefully someone can help us (or me) with these ploblems.

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