| Issue ID | 1059695 |
| Internal NHTSA # | 10584017 |
| Manufacurer | Toyota Motor Corporation |
| Brand | TOYOTA |
| Model | SIENNA |
| Model Year | 2004 |
| File date | 18/04/14 |
| Component | VEHICLE SPEED CONTROL |
| Product type code | VEHICLE |
| Description of the problem | Starting from a stop and accelerating up to approx 20 mph, abs tracs vsc lights illuminated with beeping alert, and activation of brakes causing a sudden deceleration. The road was dry, level pavement, no ice, no gravel, driving straight and the brakes were not being applied. There were no conditions that would necessitate the traction control. As the brakes were not being applied at the time of the incident, the rear brake lights would not have illuminated. Therefore, any driver behind our vehicle would not have been alerted to the sudden deceleration which could have resulted in a collision. Fortunately this was not the case. This is the 2nd time that this issue has occurred with this vehicle. The first was in nov. 2007 (46000 miles in the vehicle). Toyota service was not able to find a fault, no codes stored and not able to replicate at that time. They said that they would have a corporate contact get in touch with me. I never heard from them. Nothing was resolved. There are at least two tsbs related to the vsc issue (tsb br004-03 and br008-04). Neither was implemented. |
| Vehicle Mileage at Failure | 123000 |
| Number of Occurences | 1 |
| Source of the issue | NHTSA WEB SITE |
| City and State | ELLICOTT CITY, MD |
| VIN pattern | 5TDZA23C74SXXXXXX |
| Was vehicle invloved in a crash? | N |
| Was vehicle involved in a fire? | N |
| Was incedent reported to police? | N |
| Was medical attention required? | |
| 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 | 20 |
| 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 |