2006 Toyota Sienna: Reliability Data
When Do Complaints Happen?
Distribution of NHTSA complaints by vehicle mileage at time of report.
What Fails?
Most reported component issues from NHTSA complaints.
Severity Assessment
Sample Complaint Reports
"DUNLOP ST4000 TIRES ARE WORN OUT AT 20,500 HIGHWAY MILES. SERIOUS PROBLEM. THIS IS A REALLY BIG ISSUE, AS I HAVE SEEN ALL THE COMPLAINTS ON MANY INTERNET SITES. I AM VERY DISAPPOINTED WITH THESE TIRES. THE CAR IS LESS THAN A YEAR OLD AND I HAVE TO SPEND $1000 PLUS ON NEW TIRES?????? I WEN..."
"DT*: THE CONTACT STATED THE REAR DOORS OF THE VEHICLE DO NOT CLOSE PROPERLY. TO CLOSE THE DOORS IT REQUIRED EXCESSIVE FORCE, AND THEY LEAK WHEN IT RAINS. THE VEHICLE WAS TAKEN TO THE SERVICE DEALER FOR INSPECTION. AFTER EIGHT DAYS, THE DEALER WAS STILL UNABLE TO CORRECT THE PROBLEM. UPDATED 03/1..."
"DT*: THE CONTACT STATED THE REAR DOORS OF THE VEHICLE DO NOT CLOSE PROPERLY. TO CLOSE THE DOORS IT REQUIRED EXCESSIVE FORCE, AND THEY LEAK WHEN IT RAINS. THE VEHICLE WAS TAKEN TO THE SERVICE DEALER FOR INSPECTION. AFTER EIGHT DAYS, THE DEALER WAS STILL UNABLE TO CORRECT THE PROBLEM. UPDATED 03/1..."
Source: NHTSA ODI Complaints Database. Names and identifying details omitted.
When Were Complaints Filed?
Number of complaints by the year the issue occurred.
When Does Each Component Fail?
Median mileage at complaint for top components.
Where Are Complaints Coming From?
Top states by complaint count.
Who Files Complaints?
Toyota Sienna — Other Years
See how this model compares across different model years.
Data source: View this vehicle on NHTSA.gov | NHTSA ODI Complaints Database. Public domain.
Methodology: Complaint counts and mileage distributions are computed directly from consumer-reported NHTSA complaints. This data represents reported issues, not failure rates — vehicles without complaints are not represented. Full methodology.
Data through: 2026-03-28
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