Toyota Avalon 2018–2021 — service campaign
Bulletin 24TE04 · NHTSA communication 11022949 · issued Aug 7, 2025
Service campaign
communication type
Engine
component
2018–2021
model years
30
vehicle entries
Official summary
The specific condition covered by this program is for a small engine coolant leak that can occur from the flow shut-off valve that can allow coolant to drip on other parts of the vehicle. This can cause "Engine Maintenance Required" to be displayed on the instrument cluster or cause the A/C not to function normally. Although the flow shut-off valve is covered by Toyota’s New Vehicle Limited Warranty for 36 months or 36,000 miles (whichever comes first), we at Toyota care about the customers’ ownership experience. Toyota is providing coverage for repairs related to Flow Shut-off Valve Coolant L
Vehicles covered
- 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 Corolla
- 2021 Toyota Corolla
- 2019 Toyota Corolla Hatchback
- 2020 Toyota Corolla Hatchback
- 2021 Toyota Corolla Hatchback
- 2020 Toyota Highlander Hybrid
- 2021 Toyota Highlander Hybrid
- 2019 Toyota RAV4
- 2020 Toyota RAV4
- 2021 Toyota RAV4
- 2019 Toyota RAV4 Hybrid
- 2020 Toyota RAV4 Hybrid
- 2021 Toyota RAV4 Hybrid
- 2021 Toyota RAV4 Prime
- 2021 Toyota Sienna Hybrid
- 2021 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.