One problem related to gasoline fuel system has been reported for the 2006 Toyota Sienna. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2006 Toyota Sienna based on all problems reported for the 2006 Sienna.
The gas in the lift gate support of the back door escaped 3 years after I bought it.
| Tank Assembly problems | |
| Gasoline Fuel System problems |