In the last 2 days my dash has dinged an flash low cool but I've checked everything an it seems there's plenty its slightly low in the overflow so I don't know any help would be great. O yea the operating temp is normal so I dunno

The low cool light is triggered by a float switch in the coolant tank. If the light comes on, it usually means your coolant is low.
Go ahead and add some water to the tank to see if that makes the light turn off. You can't hurt anything by doing so.

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U.S. Army Retired

If the coolant level is ok and if adding some coolant doesn't make the problem go away then it's likely a bad switch. Uncommon but not impossible; should be easy to replace.

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Sold to LOST member my 05 Ltd, GDE Stg II turbo + TCM tune, SunCoast TC w. Transgo kit, Steiger window regulators, Samcos, Fumoto valve, 2nd gen filter head with Lub. Spec. bleeder, Hayden clutch & 11 blade fan, inverted spare, P-1 battery, BF Goodrich Long Trail TAs, Etecno1 glow plugs, timing belt at 50K miles/8 yrs

May just be some buildup on the float assembly too. I've had it happen on washer fluid floats, but not coolant units. Hot water and a nylon brush may be an easy fix FWIW.