| Issue ID | 770049 |
| Internal NHTSA # | 10314045 |
| Manufacurer | TOYOTA MOTOR CORPORATION |
| Brand | TOYOTA |
| Model | SIENNA |
| Model Year | 2006 |
| File date | 04/07/07 |
| Component | ENGINE AND ENGINE COOLING:ENGINE |
| Product type code | VEHICLE |
| Description of the problem | Issue: my 2006 toyota sienna's ventilation system heats up even if setting at cold level. It caused the interior of the van to heat up uncontrollably and could cause heat exhaustion during hot summer days. The unwanted heat was traced from heat at the engine compartment enter the passenger cabin through the ventilation system. Due to insufficient insulated area at the engine compartment to the passenger compartment. It is extremely dangerous for young children in the vehicle during hot summer time. We noticed the issue during one of our summer vacation in 2007. We were stuck in heavy traffic for more than 15 minutes. Outside temperature was at a comfortable 75 degree, but the interior of vehicle feels like 90 degree. The air coming from the air vent is hot. I did some research on this issue, it turns out that toyota fixed this issue on 2008 and later vehicles by adding insulation pad between the engine compartment and ventilation system. However, the toyota dealership refuse to provide the fix to my van. |
| Vehicle Mileage at Failure | 5000 |
| Number of Occurences | 1 |
| Source of the issue | NHTSA WEB SITE |
| City and State | CANTON, MA |
| VIN pattern | 5TDZA23C16SXXXXXX |
| 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 | 5 |
| 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 |