SERVICE ACTION: BASE AUDIO HEAD UNIT REPLACEMENT (SA211) - THIS BULLETIN PROVIDES THE PROCEDURE TO REPLACE THE BASE AUDIO HEAD UNIT OF SOME 2016MY OPTIMA (JFA) VEHICLES, PRODUCED FROM SOP THROUGH NOVEMBER 10, 2015 WHICH MAY EXHIBIT A HEAD UNIT SCREEN THAT DOES NOT DISPLAY AN IMAGE (BLACK SCREEN) IN COLD WEATHER. TO CORRECT AND/OR PREVENT THIS CONDITION, KIA IS REQUESTING THE COMPLETION OF THIS SERVICE ACTION ON ALL AFFECTED VEHICLES. BEFORE CONDUCTING THE PROCEDURE, VERIFY THE VEHICLE IS INCLUDED IN THE LIST OF AFFECTED VINS
