Toyota 4RUNNER 2018–2021 — technical service bulletin

Bulletin T-TT-0611-20 · NHTSA communication 10176504 · issued May 18, 2020

Technical service bulletin

communication type

Equipment

component

2018–2021

model years

vehicle entries

Official summary

TT: To assist with the early detection and early resolution of audio related concerns, it may be requested as part of the remanufactured head unit return to recover MMR data from the head unit. The following steps are instructions on how to retrieve the data from the system and are only to be used when requested by audio suppliers, FTS, and/or FPEs.

Vehicles covered

2020 Toyota 4RUNNER
2021 Toyota 4RUNNER
2019 Toyota Avalon
2020 Toyota Avalon
2021 Toyota Avalon
2019 Toyota Avalon Hybrid
2020 Toyota Avalon Hybrid
2021 Toyota Avalon Hybrid
2018 Toyota Camry
2019 Toyota Camry
2020 Toyota Camry
2021 Toyota Camry
2018 Toyota Camry Hybrid
2019 Toyota Camry Hybrid
2020 Toyota Camry Hybrid
2021 Toyota Camry Hybrid
2020 Toyota C-HR
2021 Toyota C-HR
2020 Toyota Corolla
2021 Toyota Corolla
2020 Toyota Corolla Hatchback
2021 Toyota Corolla Hatchback
2020 Toyota Corolla Hybrid
2021 Toyota Corolla Hybrid
2020 Toyota Highlander
2021 Toyota Highlander
2020 Toyota Highlander Hybrid
2021 Toyota Highlander Hybrid
2020 Toyota Prius
2021 Toyota Prius
2020 Toyota Prius Prime
2021 Toyota Prius Prime
2019 Toyota RAV4
2020 Toyota RAV4
2021 Toyota RAV4
2020 Toyota Sequoia
2021 Toyota Sequoia
2018 Toyota Sienna
2019 Toyota Sienna
2020 Toyota Sienna
2020 Toyota Tacoma
2021 Toyota Tacoma
2020 Toyota Tundra
2021 Toyota Tundra

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.