2017 Premier with illuminated charging port. When I open the port door, the green light turns on (steady green). During charging it flashes; 1,2,3, or 4 green flashes, depending on charging status (as does my dash indicator light). When fully charged, the port goes black (the charge indicator light on the dash, however goes steady green). Is this correct, or should the charging port also show a steady green light? Thanks for your help! I'm just curious after reading threads about charging etiquette.