This bulletin announces availability of new audio system amplifiers to address the following operating concerns with the Harman Kardon Gen 3 infotainment system:
Symptom 1: No audio output is heard but, the volume level displayed changes when turning the knob
Symptom 2: Audio volume increases to maximum intermittently without turning the knob
NOTE: This condition is generally reported as occurring following a handsfree phone call or while using navigation voice guidance.
Symptom 3: A buzzing, screeching or crackling-type sound is heard coming through the speakers.
