| Issue ID | 1540256 |
| Internal NHTSA # | 11181710 |
| Manufacurer | Toyota Motor Corporation |
| Brand | TOYOTA |
| Model | SIENNA |
| Model Year | 2018 |
| File date | 21/02/19 |
| Component | ELECTRICAL SYSTEM |
| Product type code | VEHICLE |
| Description of the problem | 3rd row power seats are malfunctioning and are operating while vehicle is in motion. Multiple times, and on different days, the power seats have started to close while passenger is seated and buckled in the seat. Occurred today while on the highway, at highway speed while my wife was seated in the drivers side 2 seat split. The seat started to close on its own - no one touched any button and we had been driving for over an hour. The seat put pressure on her until it stopped in a partially closed position. The seat buttons then did not work to reopen the seat back for several minutes. This would be extremely dangerous for a small child. This has happened in a similar scenario on multiple occasions and we are certain that the power seats are malfunctioning. |
| Vehicle Mileage at Failure | 24000 |
| Number of Occurences | |
| Source of the issue | NHTSA WEB SITE |
| City and State | CARPENTERSVILLE, IL |
| VIN pattern | 5TDYZ3DC2JSXXXXXX |
| Was vehicle invloved in a crash? | N |
| Was vehicle involved in a fire? | N |
| Was incedent reported to police? | N |
| Was medical attention required? | N |
| Was part original equipment? | |
| No. of injured persons | |
| No. of fatalities | |
| Date of purchase | 07/08/26 |
| Was original owner? | N |
| Anti-lock brakes | N |
| Cruise control | N |
| Number of cylinders | |
| Drive train type | |
| Transmission type | |
| Vehicle speed | 70 |
| DoT tire identifier | |
| Tire size | |
| Location of tire code | |
| Type of tire failure code | |
| Was defective tire repaired? | |
| Date of manufacture | |
| Type of child seat code | |
| Type of restraint | |
| Dealer's name | |
| Dealer's telephone number | |
| Dealer's city | |
| Dealer's state code | |
| Dealer's ZIP code |