TOYOTA
T-SB-0035-25
Manufacturer communications
- Publication date
- 2025-04-09
- Received by NHTSA
- 2025-05-15
- NHTSA record numbers
- 11018333 · 11019336
Multiple filings of the same bulletin are grouped here; original record numbers remain available.
Manufacturer summary
Original wording in English
Some 2025 model year Sienna Hybrid vehicles equipped with the advanced rear seat reminder system may exhibit one or both of the following conditions:
• A “Rear Seat Reminder Malfunction – Visit Your Dealer” message on the Multi-information Display (MID).
• Diagnostic Trouble Code (DTC) U117487 (Lost Communication with Cabin Occupant Recognition Sensor Missing) present in the main body ECU. The cabin object recognition sensor assembly logic has been modified to address these conditions.
• A “Rear Seat Reminder Malfunction – Visit Your Dealer” message on the Multi-information Display (MID).
• Diagnostic Trouble Code (DTC) U117487 (Lost Communication with Cabin Occupant Recognition Sensor Missing) present in the main body ECU. The cabin object recognition sensor assembly logic has been modified to address these conditions.
Reported code forms
Manufacturer wording
Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
Toyota
U117487Lost Communication with Cabin Occupant Recognition Sensor MissingCheck vehicle applicability
A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Toyota | SIENNA HYBRID | 2025 |