TSB: AUDIO SOFTWARE UPGRADE - BLUETOOTH® CALL CUTS OFF - THIS BULLETIN PROVIDES THE PROCEDURE FOR UPGRADING THE BASE AUDIO SYSTEM SOFTWARE ON SOME 2014MY SORENTO (XMA) AND 2013MY RIO (UB) VEHICLES (SEE PRODUCTION DATES BELOW) WHICH MAY EXHIBIT A CONDITION RELATED TO A BLUETOOTH® CALL CUTTING OFF AFTER A PERIOD OF APPROXIMATELY 15 MINUTES. TO RESOLVE THE CONCERN, FOLLOW THE PROCEDURE OUTLINED BELOW.
