Toyota Avalon 2016–2022 — technical service bulletin
Bulletin T-TT-0686-22 · NHTSA communication 10210372 · issued Mar 8, 2022
Technical service bulletin
communication type
Engine and Engine Cooling
component
2016–2022
model years
29
vehicle entries
Official summary
TT: The purpose of this Tech Tip is to provide diagnostic tips to prevent misdiagnosis of the following DTC?s and prevent repeat repairs. One or more of the Heated Oxygen Sensors (O2) or Air Fuel ratio sensor (A/F) DTCs below could set due to a leaking exhaust system. If you encounter a vehicle with any of these DTCs
Vehicles covered
- 2019 Toyota Avalon
- 2020 Toyota Avalon
- 2021 Toyota Avalon
- 2022 Toyota Avalon
- 2018 Toyota Camry
- 2019 Toyota Camry
- 2020 Toyota Camry
- 2021 Toyota Camry
- 2022 Toyota Camry
- 2017 Toyota Highlander
- 2018 Toyota Highlander
- 2019 Toyota Highlander
- 2020 Toyota Highlander
- 2021 Toyota Highlander
- 2022 Toyota Highlander
- 2017 Toyota Highlander Hybrid
- 2018 Toyota Highlander Hybrid
- 2019 Toyota Highlander Hybrid
- 2017 Toyota Sienna
- 2018 Toyota Sienna
- 2019 Toyota Sienna
- 2020 Toyota Sienna
- 2016 Toyota Tacoma
- 2017 Toyota Tacoma
- 2018 Toyota Tacoma
- 2019 Toyota Tacoma
- 2020 Toyota Tacoma
- 2021 Toyota Tacoma
- 2022 Toyota Tacoma
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.