If this is the light that comes one when there’s a diagnostic code stored, probably no way to turn that off 100% except to either fix the problem or put a piece of black tape over the bulb. If it is a separate bulb that tells the owner there’s some scheduled service needed, like an oil change, there indeed may be a way using a code reader with that functionality to turn that one off.
Note that running lean can cause overheating and damage internal engine parts, like the valves.