| Issue ID | 760210 |
| Internal NHTSA # | 10304763 |
| Manufacurer | TOYOTA MOTOR CORPORATION |
| Brand | TOYOTA |
| Model | SIENNA |
| Model Year | 2004 |
| File date | 01/10/04 |
| Component | VEHICLE SPEED CONTROL |
| Product type code | VEHICLE |
| Description of the problem | 2004 toyota sienna xle limited- uncontrolled cruise control acceleration/deceleration. The problem has continuously occurred since purchase in september 2004. Dealership denies problems. Dynamic cruise controlsystem causes my car to dangerously accelerate and decelerate. When laser detects nearby vehicle, the car will brake abruptly. Likewise, once the nearby car is no longer in laser range, the car will accelerate abruptly to return to the set cruise control speed. I have almost been hit from behind multiple times on freeways because of the abrupt deceleration. I have been caught off guard several times by the acceleration and nearly lost control of the vehicle. The only way to stop the rapid acceleration and deceleration is to press the brake in order to disengage the cruise control system. I have never driven a car with such a dangerous cruise control system. I no longer use my cruise control system because i fear that i'll be unable to disengage the system and lose control of the vehicle. |
| Vehicle Mileage at Failure | 1500 |
| Number of Occurences | 1 |
| Source of the issue | NHTSA WEB SITE |
| City and State | KENNESAW, GA |
| VIN pattern | 5TDZA22C44SXXXXXX |
| 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 | 65 |
| 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 |