One problem related to front seat power adjust has been reported for the 2004 Toyota Sienna. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Toyota Sienna based on all problems reported for the 2004 Sienna.
Driver power seat mechanism punched a hole through the side of the seat's material.
| Front Seat Heater/cooler problems | |
| Mid/rear Seats Assembly problems | |
| Seats problems | |
| Front Seat Recliner problems | |
| Front Seat Power Adjust problems |