Polaris 800 INDY XC 129 2019 Owner's Manual page 54

GAUGE
5. Press and hold the SET button to accept the 2nd digit and advance to the 3rd
digit.
6. Press and release the SET button to increase the 3rd digit.
7. Press and hold the SET button to accept the 3rd digit and submit code.
If code is correct, SECURITY OFF will appear in the information display area
If code is incorrect, BAD CODE will appear in the information display area.
Return to step 1 to re-enter code.
8. You must now enter a new security code. Proceed immediately to TASK 4.
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NOTE
The system is now unlocked.