| Issue ID | 1094672 |
| Internal NHTSA # | 10618446 |
| Manufacurer | Toyota Motor Corporation |
| Brand | TOYOTA |
| Model | SIENNA |
| Model Year | 2004 |
| File date | 11/07/14 |
| Component | ELECTRONIC STABILITY CONTROL |
| Product type code | VEHICLE |
| Description of the problem | On clear, dry pavement at moderate (50mph -60 mph) highway speeds, the traction control has unexpectedly engaged. This has occurred multiple times on both slight banking turns and on straight sections of roadway. Previous to each incident the vehicle was under predictable driver control with no sudden steering changes; yet the traction control activated causing sudden braking, difficulty steering, audible alarm sounds, and dashboard traction control light illumination. The vehicle is difficult to control during the 5- 10 second durations. Continued safe driving can only be done by manually disengaging the traction control system. I note that tires were recently replaced and front end wheel alignment was performed. |
| Vehicle Mileage at Failure | 120500 |
| Number of Occurences | 1 |
| Source of the issue | NHTSA WEB SITE |
| City and State | PHILADELPHIA, PA |
| VIN pattern | 5TDZA22C24SXXXXXX |
| 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 | 0 |
| No. of fatalities | 0 |
| Date of purchase | 07/08/26 |
| Was original owner? | N |
| Anti-lock brakes | N |
| Cruise control | N |
| Number of cylinders | 6 |
| Drive train type | |
| Transmission type | |
| Vehicle speed | 50 |
| 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 |