I installed my KOSO meter 3 weeks ago - as i recall, after minute of frustration on settings - i set it all up
USE the Paper Manual Instructions (to see what FUNCTIONS can do, ON / OFF , FLASH or STEADY LIGHT, etc)
Example - FUEL Low - i wanted little fuel pump icon to FLASH and the LARGE RED Light to come on and stay ON (not flash)
step 1 - be careful - know what your TOTAL Mileage is (you may accidentally CLEAR IT)
step 2 - while seeing the TOTAL Mileage - HOLD Select Button down for 3 Seconds
step 3 - Now you are back into 1st of ALL of the SETTINGS SCREENS (like 10 or so, they go thru one screen at a Time)
step 4 - as i recall - HOLD BUTTON for a Second to TOGGLE thru Options - HOLD BUTTON for 3 Seconds to ACCEPT that Setting
........like accepting your Mileage, accept One Digit at a TIME - then screen TOGGLES to Next
.....after HOLDING Down 3 seconds - the screen TOGGLES to Next Screen or Selection
.......TRY and Notice what LIGHTS UP when you Toggle to the Next Screen of SETTINGS - read PAPER Manual, have it with you
......hope this kind of helped - E