It has already been stated that it is legal to flee the police, even if they approach you, so long as they have not attempted to detain you: Is it illegal to run away from a police officer in a way that provokes them, in the US?
So what if an individual is deaf, and therefore could not hear a police officer's request to stop? Can they still legally flee the police on the grounds that they did not know they were being detained since the officer did not communicate their detention in a manner that was understandable to them?
For example say a deaf person sees a police officer approach them and suspects the officer's intent is to detain them, but they cannot hear if the officer asked them to stop (presume the officer's mouth is concealed to the point that reading their lips wasn't possible). This person flees, say by starting their car and driving away while the cop is on foot, before the officer has realized the individual is deaf and so communicated their intent to detain the individual via a non-audible method. If the individual is later detained would they be able to make a claim that their fleeing was legal on the grounds that the intent to detain them was insufficiently communicated?