Toyota TSB #T-TT-0516-18_Rev
2020 Toyota Highlander
Affected Component: EQUIPMENT
- Summary
- TT: The microphone circuit passes through the DCM before reaching the radio/navigation system. To simplify the diagnosis of the microphone, Safety Connect SOS button lights, and DCM (Data Communication Module/telematics transceiver) inoperative conditions, refer to the procedure below to prevent unnecessary parts replacement.