Toyota Avalon 2018–2023 — technical service bulletin
Bulletin T-TT-0699-22 Rev · NHTSA communication 10234338 · issued Mar 27, 2023
Technical service bulletin
communication type
Engine and Engine Cooling
component
2018–2023
model years
37
vehicle entries
Official summary
TT: Some Model Year 2018-2023 vehicles equipped with A25A-FKS/FXS or M20A-FKS/FXS engines may display the following message ?Engine Maintenance Required Visit Your Dealer? on the combination meter
Vehicles covered
- 2018 Toyota Avalon
- 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
- 2023 Toyota Camry
- 2018 Toyota Corolla
- 2019 Toyota Corolla
- 2020 Toyota Corolla
- 2021 Toyota Corolla
- 2022 Toyota Corolla
- 2023 Toyota Corolla
- 2022 Toyota Corolla Cross
- 2023 Toyota Corolla Cross
- 2019 Toyota Corolla Hatchback
- 2020 Toyota Corolla Hatchback
- 2021 Toyota Corolla Hatchback
- 2020 Toyota Highlander
- 2021 Toyota Highlander
- 2022 Toyota Highlander
- 2023 Toyota Highlander
- 2019 Toyota RAV4
- 2020 Toyota RAV4
- 2021 Toyota RAV4
- 2022 Toyota RAV4
- 2023 Toyota RAV4
- 2021 Toyota Sienna
- 2022 Toyota Sienna
- 2023 Toyota Sienna
- 2021 Toyota Venza
- 2022 Toyota Venza
- 2023 Toyota Venza
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.