Service bulletin T-TT-0519-19
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 | 10153262 |
| Published by NHTSA | 2019-02-19 |
| Manufacturer's number | T-TT-0519-19 |
| Manufacturer's date | 2018-01-03 |
| NHTSA component | FUEL SYSTEM, GASOLINE |
NHTSA's summary
TT: Some 2016-2020 model year Mirai vehicles might encounter fueling issues which may result in the loss of the 35 MPa O-ring.
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
Fuel system
| TOYOTA MIRAI | 2016, 2017, 2018, 2019, 2020 |
|---|
Listing a model year does not mean every vehicle of it is concerned: the document says which.
| TSB004622 | 2022-09-15. Service bulletin. TSB: Some 2016 ? 2019 model year Mirai vehicles may exhibit a warning message, ?FC malfunction, return vehicle to dealer for service.? This message is accompanied by Diagnostic Trouble Code (DTC) P1DEF (450 FC Stack Performance). The Fuel Control Module (FCM) calibration has been revised to address this condition |
|---|---|
| T-TT-0660-21 | 2021-09-13. Service bulletin. TT: During vehicle inspections, when the vehicle under covers are removed, debris is found on the undercover near the end of the hydrogen tank. Upon closer inspection the debris is found to be coming from the end protector of the tank. |
| T-SB-0318-17 | 2018-04-23. Service bulletin. TSB: Some 2016 ? 2017 model year Mirai vehicles may exhibit a warning message, "FC malfunction, return vehicle to dealer for service." This message is accompanied by Diagnostic Trouble Code (DTC) P1DEF (450 FC Stack Performance). The Fuel Control Module (FCM) calibration has been revised to address this condition. |
| T-SB-0286-17 | 2018-04-02. Service bulletin. TSB: Some 2016 ? 2017 model year Mirai vehicles may exhibit a chirp noise coming from the rear of the vehicle during the following conditions: ? Low/parking lot speeds ? Cruising speeds ? Varying angles of accelerator pedal application Chirp Noise Example This chirp noise may come from the hydrogen supply regulator. Follow the Repair Procedure in his bulletin to address this condition. |
| H0E TI Mirai 03. | 2018-04-02. Service bulletin. Technical Instructions: Fuel Cell System Updates. Under unique driving conditions, such as if the accelerator pedal is depressed to the wide open throttle position after driving on a long descent while using cruise control, there is a possibility that a warning light will illuminate, a message will be displayed on the instrument panel, and the fuel cell system will stop running. If the fuel cell system stops running, electric power steering and the brakes will function normally. The fuel cell system can be restarted after the vehicle is stopped. |
| SSC_Dealer Daily | 2018-04-02. Service bulletin. Dealer Daily: Toyota announced a Campaign in Japan and other international markets covering certain Toyota Mirai vehicles. The campaign will provide software updates to the fuel cell control systems in the involved vehicles. Toyota is currently preparing to launch a Special Service Campaign (SSC) in the United States and expects the updates to be released approximately mid-March, 2017. |