| Issue ID | 761897 |
| Internal NHTSA # | 10306210 |
| Manufacurer | TOYOTA MOTOR CORPORATION |
| Brand | TOYOTA |
| Model | SIENNA |
| Model Year | 2007 |
| File date | 12/11/07 |
| Component | TIRES:PRESSURE MONITORING AND REGULATING SYST |
| Product type code | VEHICLE |
| Description of the problem | We purchased a 2007 toyota sienna xle awd in may of 2007. In nov 2007, the low tire pressure warning light came on. I checked the tires and they were in fact low. We filled the tires with air. A couple of weeks later, the same thing happened. We put air in the tires and made an appointment to bring the car into the toyota dealership. Toyota of bellevue checked the tires wed dec 5, 2007. They checked all four tires and found nothing wrong. On wed night may 28, 2008, the same thing happened. The right front tire was at or below 15 psi, the other three tires were at or just under 20 psi. I filled all four tires and the light went out (when i filled the right front tire, i started the car to see if the warning indicator would go out; it did not go out, until i filled all four tires back up to normal pressure. On may 31, 2008 we brought the car into toyota of bellevue and they took all four tires off and inspected, but found no problems. They did not remove the tires from the rims, nor did they submerge the tires in water, nor did they replace the valve stems. They did not find any foreign objects that may have pierced the tires. Called dunlop tires on 6/3/08 case#976284. On 6/4/08 we brought the car into elliott tire & service. They removed all of the tires and checked them. Stated it could be a faulty pressure sensor. On 8/31/08 on way to everett, the tire light came on again. Car sat outside at night and light is still on 9/1/08. Again the same thing happened in jan 2009. We requested the dealer to replace the whole tire sensor system repeatedly. They refused every time. This car is not safe. The tire sensors allow air to leak and the tires become low despite the fact that we fill them every week. |
| Vehicle Mileage at Failure | 2000 |
| Number of Occurences | 1 |
| Source of the issue | NHTSA WEB SITE |
| City and State | SEATTLE, WA |
| VIN pattern | 5TDBK22C97SXXXXXX |
| 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 | 25 |
| 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 |