TT: The microphone circuit passes through the DCM before reaching the radio/navigation system
Toyota technical service bulletin T-TT-0516-18_Rev for 2018-2020 Toyota Camry, 2018-2020 Toyota Prius and 2019-2020 Toyota Corolla and others.
- Bulletin number
- T-TT-0516-18_Rev
- Component
- Electrical system
- 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.
Owners of these vehicles have filed 649 complaints in the electrical category.
Vehicles covered
- Toyota Camry 2018-2020 201820192020
- Toyota Prius 2018-2020 201820192020
- Toyota Corolla 2019-2020 20192020
- Toyota RAV4 2019-2020 20192020
- Toyota Sienna 2018-2020 201820192020
- Toyota 4RUNNER 2018-2020 201820192020
- Toyota Highlander 2018-2020 201820192020
- Toyota Avalon 2018-2020 201820192020
- Toyota C-HR 2018-2020 201820192020
- Toyota Land Cruiser 2018-2020 201820192020
- Toyota Prius Prime 2017-2021 20172018201920202021
- Toyota Corolla Hatchback 2020 2020
VIN decoder
See the problems and recalls for an exact car
Buying a used Toyota Camry?
Check the exact car before you pay: accidents, salvage or flood titles, odometer readings and previous owners.
Check its history