Service bulletin T-SB-0028-25
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 | 11016797 |
| Published by NHTSA | 2025-04-08 |
| Manufacturer's number | T-SB-0028-25 |
| Manufacturer's date | 2025-02-24 |
| Campaign id or software version | T-SB-0028-25 |
| NHTSA component | POWER TRAIN |
NHTSA's summary
Some 2023 – 2025 Crown and 2024 – 2025 Grand Highlander Hybrid vehicles equipped with a Hybrid Transmission Assembly HPC60 may exhibit a shudder sensation when the vehicle is at a complete stop, the State of Charge (SOC) of the HV Battery is greater than 76%, and the transmission is in the Drive position with the brakes applied.
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
Transmission and driveline
| TOYOTA CROWN | 2023, 2024, 2025 |
|---|---|
| TOYOTA GRAND HIGHLANDER HYBRID | 2024, 2025 (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.
| T-SB-0082-24 Rev2 | 2026-05-08. Service bulletin. OBSOLETE NOTICE April 17, 2026: This bulletin is now obsolete. Please see T-SB-0028-26 |
|---|---|
| T-SB-0028-26 | 2026-05-08. Service bulletin. Some 2024 Grand Highlander and Grand Highlander Hybrid vehicles may exhibit a rotational clicking noise from one or both front drive shaft assemblies when accelerating while making turns. This condition may occur without a grease leak present on the front drive shaft assemblies. An updated front drive shaft assembly is available to resolve this condition. |
| T-SB-0028-25 | 2025-03-11. Service bulletin. Some 2023 – 2025 Crown and 2024 – 2025 Grand Highlander Hybrid vehicles equipped with a Hybrid Transmission Assembly HPC60 may exhibit a shudder sensation when the vehicle is at a complete stop, the State of Charge (SOC) of the HV Battery is greater than 76%, and the transmission is in the Drive position with the brakes applied. |
| T-SB-0082-24 Rev1 | 2024-11-08. Service bulletin. Some 2024 Grand Highlander and Grand Highlander Hybrid vehicles may exhibit a rotational clicking noise from one or both front drive shaft assemblies when accelerating while making turns. This condition may occur without a grease leak present on the front drive shaft assemblies. An updated front drive shaft assembly is available to resolve this condition. |
| T-SB-0082-24 | 2024-11-06. Service bulletin. Some 2024 Grand Highlander and Grand Highlander Hybrid vehicles may exhibit a rotational clicking noise from one or both front drive shaft assemblies when accelerating while making turns. This condition may occur without a grease leak present on the front drive shaft assemblies. An updated front drive shaft assembly is available to resolve this condition. |
| T-SB-0056-24 | 2024-07-23. Service bulletin. Some 2023 – 2024 model year Crown and 2024 model year Grand Highlander Hybrid vehicles equipped with the PC60 hybrid transmission may exhibit a MIL ON condition with Diagnostic Trouble Code (DTC) P279762 (Electromagnetic Oil Pump Component Internal Failure) present. The Transmission Control Module (TCM) logic has been modified to reduce the possibility of this condition. |
| T-SB-0056-24 | 2024-07-23. Service bulletin. Some 2023 – 2024 model year Crown and 2024 model year Grand Highlander Hybrid vehicles equipped with the PC60 hybrid transmission may exhibit a MIL ON condition with Diagnostic Trouble Code (DTC) P279762 (Electromagnetic Oil Pump Component Internal Failure) present. The Transmission Control Module (TCM) logic has been modified to reduce the possibility of this condition. |
| TTT074023A | 2024-01-29. Service bulletin. TT: Some 2023MY Crown Platinum grade ONLY may require a transaxle and transmission control module (TCU) replacement for low-speed vibration from Transaxle and/or DTC for P084000/P084087. |
| TSB010123 | 2024-01-29. Service bulletin. TSB: Some 2023 model year Crown vehicles may exhibit a MIL ON condition with Diagnostic Trouble Code (DTC) P2C9000 (Crankcase Ventilation System - Hose A Disconnected) present without any related hoses disconnected. The Engine Control Module (ECM) (SAE term: Powertrain Control Module/PCM) logic has been modified to reduce the possibility of this condition. Follow the Repair Procedure in this bulletin to address this condition. |
| TTT074023 | 2024-01-29. Service bulletin. TT: Some 2023MY Crown Platinum grade ONLY may require a transaxle and transmission control module (TCU) replacement for low-speed vibration from Transaxle and/or DTC for P084000/P084087. |