Toyota Avalon 2014–2021 — technical service bulletin
Bulletin T-TT-0659-21 Rev · NHTSA communication 10201352 · issued Jul 6, 2021
Technical service bulletin
communication type
Power Train
component
2014–2021
model years
23
vehicle entries
Official summary
TT: Some 2014-2021 model year vehicles equipped with Dynamic Torque Control AWD system may experience a ?Noise? or ?Abnormal Operation? condition from the rear differential front coupling. In some cases, even an ?AWD System Message? with or without a DTC may be present with or without other conditions present.
Vehicles covered
- 2021 Toyota Avalon
- 2020 Toyota Camry
- 2021 Toyota Camry
- 2016 Toyota Highlander
- 2017 Toyota Highlander
- 2018 Toyota Highlander
- 2019 Toyota Highlander
- 2020 Toyota Highlander
- 2021 Toyota Highlander
- 2015 Toyota RAV4
- 2016 Toyota RAV4
- 2017 Toyota RAV4
- 2018 Toyota RAV4
- 2019 Toyota RAV4
- 2020 Toyota RAV4
- 2021 Toyota RAV4
- 2014 Toyota Sienna
- 2015 Toyota Sienna
- 2016 Toyota Sienna
- 2017 Toyota Sienna
- 2018 Toyota Sienna
- 2019 Toyota Sienna
- 2020 Toyota Sienna
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.