Toyota 4RUNNER 2016–2019 — technical service bulletin
Bulletin T-TT-0600-20 Rev · NHTSA communication 10184555 · issued Nov 19, 2020
Technical service bulletin
communication type
Electrical System
component
2016–2019
model years
33
vehicle entries
Official summary
TT: Some customers may experience echoing on the line calling the vehicle when using Bluetooth Hands Free. This is caused by the phone Hands Free volume being too low. These settings may need to be reapplied any time the phone is paired to a new head unit, a phone update is applied, or the phone is un-paired and re-paired.
Vehicles covered
- 2017 Toyota 4RUNNER
- 2018 Toyota 4RUNNER
- 2019 Toyota 4RUNNER
- 2017 Toyota Avalon
- 2018 Toyota Avalon
- 2016 Toyota Highlander
- 2017 Toyota Highlander
- 2018 Toyota Highlander
- 2019 Toyota Highlander
- 2016 Toyota Prius
- 2017 Toyota Prius
- 2018 Toyota Prius
- 2019 Toyota Prius
- 2016 Toyota Prius V
- 2017 Toyota Prius V
- 2018 Toyota Prius V
- 2016 Toyota Sequoia
- 2017 Toyota Sequoia
- 2018 Toyota Sequoia
- 2019 Toyota Sequoia
- 2016 Toyota Sienna
- 2017 Toyota Sienna
- 2018 Toyota Sienna
- 2019 Toyota Sienna
- 2016 Toyota Tacoma
- 2017 Toyota Tacoma
- 2018 Toyota Tacoma
- 2019 Toyota Tacoma
- 2016 Toyota Tundra
- 2017 Toyota Tundra
- 2018 Toyota Tundra
- 2019 Toyota Tundra
- 2018 Toyota Yaris
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.