NHTSA Complaint #11288938 — 2015 LEXUS GS 350

2015 LEXUS GS-350 F-SPORT. 71,348 MILES THE AUDIO AND ENTERTAINMENT SYSTEM IN THE DASH BOARD. ALL RADIO SPECKERS AND SOUND EFFECTS FEED BACK TONES. THIS HAS HAPPENED WHILE "STATIONARY, IN MOTION, CITY STREET, AND HIGHWAY. THE AUDIO RADIO, SAT, CD OR BLUETOOTH AND NAVIGATION ON-SCREEN FEEDBACK TONES DISAPPEAR. OPTIONS TO ADJUST BASS,TREBLE OR ECT IS GREYED OUT AND LOST. THE POINT PAD ALSO LOOSES SOUND FEEBACK. THIS HAS HAPPEND NOW TWICE THIS YEAR. CHECKED ALL FUSES AND THEY ARE GOOD. UNPLUGGED AMP IN TRUNCK AND WORKED THE 3RD TIME BUT NOT THE FIRST 2. THIS AUDIO SYSTEM IS NOT MARK L. I BELIVE IT IS JBL? OR PIONEER? THE VEHICLE HAS NAVIGATION, ETC.