# Service bulletin T\-SB\-0049\-26

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.

- Type: Service bulletin
- NHTSA id: 11037198
- Published by NHTSA: 2026\-09\-09
- Manufacturer's number: T\-SB\-0049\-26
- Manufacturer's date: 2026\-08\-19
- Campaign id or software version: T\-SB\-0049\-26
- NHTSA component: POWER TRAIN

## NHTSA's summary

Some 2022 – 2025 model year Tundra Hybrid, 2023 – 2025 model year Sequoia Hybrid, 2024 –2025 Land Cruiser and Tacoma Hybrid, and 2025 4Runner Hybrid vehicles may exhibit a whine noise from the transmission when in Ready ON mode.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11037198-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11037198-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Transmission and driveline

## Vehicles listed

- 2025 TOYOTA 4RUNNER I\-FORCE MAX HYBRID
- 2024 to 2025 TOYOTA LAND CRUISER HYBRID
- 2023 to 2025 TOYOTA SEQUOIA HYBRID
- 2024 to 2025 TOYOTA TACOMA HYBRID
- 2022 to 2025 TOYOTA TUNDRA HYBRID

## Recalls for the same vehicles and component

- [2025521](/recalls/tc/2025521.md), 2025-10-01: Powertrain
- [25V656000](/recalls/nhtsa/25V656000.md), 2025-10-01: POWER TRAIN:DRIVELINE:DRIVESHAFT
- [2024109](/recalls/tc/2024109.md), 2024-02-21: Powertrain
- [24V125000](/recalls/nhtsa/24V125000.md), 2024-02-21: POWER TRAIN:AUTOMATIC TRANSMISSION
- [2022330](/recalls/tc/2022330.md), 2022-06-23: Powertrain
- [22V445000](/recalls/nhtsa/22V445000.md), 2022-06-23: POWER TRAIN:AXLE ASSEMBLY:AXLE SHAFT

## Other bulletins for the same vehicles and component

- [T\-SB\-0111\-22](/bulletins/11037203.md), 2026-09-09, Service bulletin: POWER TRAIN. OBSOLETE NOTICE August 24, 2026: This bulletin is now obsolete. Please see T\-SB\-0032\-26
- [T\-SB\-0032\-26 Rev1](/bulletins/11037197.md), 2026-09-09, Service bulletin: POWER TRAIN. Some customers of 2022 – 2026 model year Tundra vehicles equipped with specifically non\-hybrid V35A\-FTS engines may experience one or more of the following drivability related concerns: • Hesitation from a rolling stop. • Hesitation from a quick stop.
- [T\-SB\-0032\-26](/bulletins/11033402.md), 2026-06-04, Service bulletin: POWER TRAIN. Some customers of 2022 – 2026 model year Tundra vehicles equipped with specifically non\-hybridV35A\-FTS engines may experience one or more of the following drivability related concerns: • Hesitation from a rolling stop. • Hesitation from a quick stop. The Transmission Control Module \(TCM\) logic has been modified to address these conditions.
- [T\-SB\-0094\-24](/bulletins/11032477.md), 2026-05-08, Service bulletin: POWER TRAIN. OBSOLETE NOTICE April 15, 2026: This bulletin is no longer applicable and is now obsolete
- [T\-SB\-0094\-24 Rev1](/bulletins/11029877.md), 2026-03-07, Service bulletin: POWER TRAIN. Some 2024 model year Tacoma and Tacoma Hybrid vehicles may exhibit a MIL ON condition with one or more of the following Diagnostic Trouble Codes \(DTCs\) present: •P07407F – Torque Converter Clutch Actuator Stuck Off •P074571 – Pressure Control Solenoid “A” Actuator Stuck •P079571 – Pressure Control Solenoid "C" Actuator Stuck •P08BA71 – Pressure Control Solenoid "L" Actuator Stuck •P271371 – Pressure Control Solenoid "D" Actuator Stuck •P280771 – Pressure Control Solenoid "G" Actuator Stuck •P281671 – Pressure Control Solenoid "H" Actuator Stuck The automatic transmission assembly and torque converter need to be replaced to address this condition for Tacoma vehicles. The automatic transmission assembly, torque converter, and hybrid module need to be replaced to address this condition for Tacoma Hybrid vehicles.
- [T\-SB\-0095\-24](/bulletins/11010345.md), 2024-11-08, Service bulletin: POWER TRAIN. Some 2023 model year Sequoia Hybrid and 2022 – 2023 Tundra Hybrid vehicles may exhibit an oil leak between the automatic transmission and the hybrid module assembly, and the source of the oil leak is from the hybrid module output shaft seal. The hybrid module assembly has been updated to minimize this condition.
- [T\-SB\-0094\-24](/bulletins/11010343.md), 2024-11-08, Service bulletin: POWER TRAIN. Some 2024 model year Tacoma and Tacoma Hybrid vehicles may exhibit a MIL ON condition with one or more of the following Diagnostic Trouble Codes \(DTCs\) present: •P07407F – Torque Converter Clutch Actuator Stuck Off •P074571 – Pressure Control Solenoid “A” Actuator Stuck •P079571 – Pressure Control Solenoid "C" Actuator Stuck •P08BA71 – Pressure Control Solenoid "L" Actuator Stuck •P271371 – Pressure Control Solenoid "D" Actuator Stuck •P280771 – Pressure Control Solenoid "G" Actuator Stuck •P281671 – Pressure Control Solenoid "H" Actuator Stuck The automatic transmission assembly and torque converter need to be replaced to address this condition for Tacoma vehicles. The automatic transmission assembly, torque converter, and hybrid module need to be replaced to address this condition for Tacoma Hybrid vehicles.
- [T\-SB\-0076\-24](/bulletins/11010342.md), 2024-11-08, Service bulletin: POWER TRAIN. OBSOLETE NOTICE October 14, 2024: This bulletin is now obsolete. Please see T\-SB\-0094\-24.
- [T\-SB\-0086\-24](/bulletins/11010329.md), 2024-11-08, Service bulletin: POWER TRAIN. Some 2023 – 2024 model year Sequoia Hybrid and 2022 – 2024 model year Tundra Hybrid vehicles may exhibit a rattle sound from the hybrid module when the engine is at idle in drive or in reverse once fully warmed up. The Engine Control Module \(ECM\) \(SAE term: Powertrain Control Module/PCM\) logic has been modified to address this condition.
- [T\-SB\-0076\-24](/bulletins/11010060.md), 2024-11-06, Service bulletin: POWER TRAIN. Some 2024 model year Tacoma vehicles may exhibit a MIL ON condition with one or more of the following Diagnostic Trouble Codes \(DTCs\) present: •P07407F – Torque Converter Clutch Actuator Stuck Off •P079571 – Pressure Control Solenoid "C" Actuator Stuck •P08BA71 – Pressure Control Solenoid "L" Actuator Stuck •P271371 – Pressure Control Solenoid "D" Actuator Stuck •P280771 – Pressure Control Solenoid "G" Actuator Stuck •P281671 – Pressure Control Solenoid "H" Actuator Stuck The automatic transmission assembly and torque converter need to be replaced to address this condition.

JSON: [/v1/bulletins/11037198](/v1/bulletins/11037198)

[Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%20Service%20bulletin%20T-SB-0049-26&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F11037198&vehicle=Service%20bulletin%20T-SB-0049-26)