Toyota Avalon 2016–2021 — technical service bulletin
Bulletin T-TT-0552-19 Rev · NHTSA communication 10177779 · issued Jun 23, 2020
Technical service bulletin
communication type
Engine and Engine Cooling
component
2016–2021
model years
32
vehicle entries
Official summary
TT: Repairing a 1234YF HVAC system on a gas powered (non-hybrid) Toyota vehicle may require additional compressor oil to complete the repairs. The various 1234YF compressor oils (ND-12, PS-D1, or VC100YF) are available through the Toyota Approved Dealer Equipment website.
Vehicles covered
- 2019 Toyota Avalon
- 2020 Toyota Avalon
- 2021 Toyota Avalon
- 2018 Toyota Camry
- 2019 Toyota Camry
- 2020 Toyota Camry
- 2021 Toyota Camry
- 2017 Toyota C-HR
- 2018 Toyota C-HR
- 2019 Toyota C-HR
- 2020 Toyota C-HR
- 2021 Toyota C-HR
- 2019 Toyota Corolla
- 2020 Toyota Corolla
- 2021 Toyota Corolla
- 2020 Toyota Corolla Hatchback
- 2021 Toyota Corolla Hatchback
- 2020 Toyota Highlander
- 2021 Toyota Highlander
- 2019 Toyota RAV4
- 2020 Toyota RAV4
- 2021 Toyota RAV4
- 2016 Toyota Tacoma
- 2017 Toyota Tacoma
- 2018 Toyota Tacoma
- 2019 Toyota Tacoma
- 2020 Toyota Tacoma
- 2021 Toyota Tacoma
- 2018 Toyota Tundra
- 2019 Toyota Tundra
- 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.