| Issue ID | 760620 |
| Internal NHTSA # | 10305131 |
| Manufacurer | TOYOTA MOTOR CORPORATION |
| Brand | TOYOTA |
| Model | SIENNA |
| Model Year | 2007 |
| File date | 21/01/08 |
| Component | POWER TRAIN:AUTOMATIC TRANSMISSION |
| Product type code | VEHICLE |
| Description of the problem | 2007 toyota sienna: transmission temporarily fails to engage the correct gear after decelerating then re-accelerating resulting in a pause or hesitation before control is again regained. This occurs most frequently when slowing for turns at intersections or behind slowing traffic or attempting a lane change. Three service calls have been made on the vehicle which were recorded as a "bad ecu program". Service technicians "reprogrammed the ecu" to "reset adaptive memory and shift points" however there was no change in performance. It was suggested that this was a design problem which had been corrected in later model years. The potential consequences of the transmission's failure to immediately engage in the correct gear are the loss in ability to quickly accelerate out of a pending collision or to avoid slowing in the middle of an intersection and causing others to have collisions. |
| Vehicle Mileage at Failure | 29521 |
| Number of Occurences | 1 |
| Source of the issue | NHTSA WEB SITE |
| City and State | SARASOTA, FL |
| VIN pattern | 5TDZA22C86SXXXXXX |
| 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 | |
| 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 | 10 |
| 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 |