| Issue ID | 699434 |
| Internal NHTSA # | 10247575 |
| Manufacurer | TOYOTA MOTOR CORPORATION |
| Brand | TOYOTA |
| Model | SIENNA |
| Model Year | 2006 |
| File date | 26/08/08 |
| Component | TIRES:PRESSURE MONITORING AND REGULATING SYST |
| Product type code | VEHICLE |
| Description of the problem | This report is for my mother in law's 2006 toyota sienna xe awd minivan with the dunlop runflat tires. This minivan has had 2 "defective" tires on it since it's purchase and with less than 8000 miles on the tires. Both tires were replaced by the dealer, but we continue to have tire/pressure problems. I believe both tires were ruined due to the pressure sensing system not detecting low pressure in the tires and causing the side walls to collapse after continued driving. Luckily, nobody has been injured, however if driving at high speeds with this system a potential exists for a severe accident. I have spoken with the national toyota and local dealer, and they continue to not address the problem. The dealer has stated in writing that the pressure system is functioning properly, however runflat tires on this system do not register low pressure until multiple tires or a single tire has hardly any pressure in it. The local dealer manager agrees with me that the runflat tires with the abs type pressure sensing system is not a safe system. I have requested to have regular tires installed on this van so the pressure system can detect low pressure, however toyota will not change them for me. I feel that having runflats as installed by the manufacturer on this type of pressure system can eventually lead to an accident when a low tire blows off the rim at a high speed, causing the driver to lose control. With the runflat tires, a driver cannot visually look at the tire and detect that it is low, due to the thick sidewalls that allow them to "run flat". This is a safety issue that i believe toyota should address and correct before somebody is killed. I live in alaska and my mother in law frequently makes trips to anchorage, where fuel/service stations are hundreds of miles apart and -50 |
| Vehicle Mileage at Failure | 8000 |
| Number of Occurences | 1 |
| Source of the issue | NHTSA WEB SITE |
| City and State | FAIRBANKS, AK |
| VIN pattern | XXXXXX |
| 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 | |
| Drive train type | |
| Transmission type | |
| Vehicle speed | 0 |
| 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 |