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Service bulletin T-SB-0110-20 Rev2

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id11037202
Published by NHTSA2026-09-09
Manufacturer's numberT-SB-0110-20 Rev2
Manufacturer's date2026-08-20
Campaign id or software versionT-SB-0110-20 Obsolete
NHTSA componentENGINE

NHTSA's summary

OBSOLETE NOTICE August 20, 2026: This bulletin is now obsolete. Please see T-SB-0051-26.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Engine

Vehicles listed
TOYOTA AVALON HYBRID2019, 2020, 2021, 2022 (the catalog's model; the bulletin names a series or trim of it)
TOYOTA CAMRY HYBRID2018, 2019, 2020, 2021, 2022, 2023, 2024 (the catalog's model; the bulletin names a series or trim of it)
TOYOTA COROLLA CROSS HYBRID2023, 2024, 2025 (the catalog's model; the bulletin names a series or trim of it)
TOYOTA COROLLA HYBRID2020, 2021, 2022, 2023, 2024, 2025 (the catalog's model; the bulletin names a series or trim of it)
TOYOTA CROWN2023, 2024, 2025
TOYOTA HIGHLANDER HYBRID2020, 2021, 2022, 2023, 2024, 2025 (the catalog's model; the bulletin names a series or trim of it)
TOYOTA MIRAI2021, 2022, 2023, 2024, 2025
TOYOTA PRIUS2016, 2017, 2018, 2019, 2020, 2021, 2022
TOYOTA RAV4 HYBRID2019, 2020, 2021, 2022, 2023, 2024, 2025 (the catalog's model; the bulletin names a series or trim of it)
TOYOTA SIENNA HYBRID2021, 2022, 2023, 2024, 2025 (the catalog's model; the bulletin names a series or trim of it)
TOYOTA TUNDRA HYBRID2022 (the catalog's model; the bulletin names a series or trim of it)
TOYOTA VENZA HYBRID2021, 2022, 2023, 2024 (the catalog's model; the bulletin names a series or trim of it)

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
25V7670002025-11-06. ENGINE AND ENGINE COOLING:ENGINE:HARD PARTS INTERNAL/MECHANICAL
20243042024-05-30. Engine
24V3810002024-05-30. ENGINE AND ENGINE COOLING:ENGINE:HARD PARTS INTERNAL/MECHANICAL
21V7340002021-09-22. HYBRID PROPULSION SYSTEM; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE
20V1620002020-03-19. ENGINE; FUEL SYSTEM, GASOLINE:DELIVERY
20200392020-02-06. Engine
20V0640002020-02-06. ENGINE AND ENGINE COOLING
20181482018-03-28. Engine
18V2000002018-03-28. ENGINE AND ENGINE COOLING:ENGINE

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
T-SB-0051-262026-09-09. Service bulletin. This bulletin includes basic procedures for performing a rescue charge at battery on high voltage (HV) Ni-MH and Li-ion batteries.
26TC032026-09-09. Service campaign. TECHNICAL INSTRUCTIONS FOR EMISSION NONCOMPLIANCE RECALL 26TC03 Certain 2022 – 2025 Model Year RAV4 Incorrect Mass Air Flow Sensor Reading
26TC032026-09-09. Service campaign. In wet conditions, water contacting the radiator in the subject vehicles after idling for an extended period can create steam that can cause an incorrect engine sensor reading. This can lead to a warning light, a rough-running engine, or a potential engine stall while idling or operating at low speeds.
24TE042026-09-09. Warranty extension. 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 Leak.
26TC032026-08-12. Service bulletin. TECHNICAL INSTRUCTIONS FOR EMISSION NONCOMPLIANCE RECALL 26TC03 Certain 2022 – 2025 Model Year RAV4 Incorrect Mass Air Flow Sensor Reading
26TC032026-08-12. Service bulletin. TECHNICAL INSTRUCTIONS FOR EMISSION NONCOMPLIANCE RECALL 26TC03 Certain 2022 – 2025 Model Year RAV4 Incorrect Mass Air Flow Sensor Reading
26TC032026-08-12. Service campaign. In wet conditions, water contacting the radiator in the subject vehicles after idling for an extended period can create steam that can cause an incorrect engine sensor reading. This can lead to a warning light, a rough-running engine, or a potential engine stall while idling or operating at low speeds.
26TE032026-06-04. Warranty extension. Although the Mirai Electric Heater Assemblies are covered by Toyota’s New Vehicle Limited Warranty for 3 years or 36,000 miles (whichever comes first), we at Toyota care about the customers’ ownership experience. Under this program, Toyota is providing additional coverage for repairs related to Mirai electric heater assembly potentially becoming inoperative.
26TE032026-06-04. Service bulletin. TECHNICAL INSTRUCTIONS FOR 26TE03 ELECTRIC HEATER SUB-ASSEMBLY REPLACEMENT CERTAIN 2021 - 2024 MIRAI
T-SB-0023-262026-05-08. Service bulletin. Some customers may experience a rough running engine with a MIL ON P140018 DTC. Upon further inspection, a loose C90/C27 connector pin at the EGR valve may be found. To correct this concern, please reference the repair section of this TSB.