One problem related to seat belt has been reported for the 2003 Toyota Sienna. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 Toyota Sienna based on all problems reported for the 2003 Sienna.
The front and second row seat belts didn't hold in a rear end crash causing the driver to strike her head on the steering wheel and a juvenile in the second row to strike her head on the rear of the driver's seat.
| Rear Seat Belt problems | |
| Seat Belt problems |