2021 Toyota Sienna Hybrid: Reliability Data

Source: NHTSA — 32 complaints
32
Total Complaints
9,000mi
Median Mileage
AIR BAGS
Top Issue
0
Crash Reports

When Do Complaints Happen?

Distribution of NHTSA complaints by vehicle mileage at time of report.

2,000 25th Percentile
9,000 Median Mileage
43,650 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

AIR BAGS
10
VISIBILITY/WIPER
4
SEATS
3
EXTERIOR LIGHTING
2
SERVICE BRAKES
2
ENGINE
1
VISIBILITY:REARVIEW MIRRORS/DEVICES
1
STRUCTURE:BODY
1
LATCHES/LOCKS/LINKAGES:DOORS:LATCH
1
SERVICE BRAKES, HYDRAULIC
1

Severity Assessment

0
Crashes
0
Fires
3
Injuries
0
Deaths

Sample Complaint Reports

"THIRD BRAKE LIGHT CONDITION POOR VISABILITY TO OPERATOR ( REAR WINDOW) WHEN BRAKE IS ACTIVATED IN LOW OR DARK LIGHTING CONDITION(S) THERE IS REFLECTION OFF GLASS AND REAR DEFROST ELEMENT(S) WHICH CAUSE LIMITED REAR VISABILITY OUT OF REAR WINDOW GLASS."
"THIRD BRAKE LIGHT CONDITION POOR VISABILITY TO OPERATOR ( REAR WINDOW) WHEN BRAKE IS ACTIVATED IN LOW OR DARK LIGHTING CONDITION(S) THERE IS REFLECTION OFF GLASS AND REAR DEFROST ELEMENT(S) WHICH CAUSE LIMITED REAR VISABILITY OUT OF REAR WINDOW GLASS."
"THIRD BRAKE LIGHT CONDITION POOR VISABILITY TO OPERATOR ( REAR WINDOW) WHEN BRAKE IS ACTIVATED IN LOW OR DARK LIGHTING CONDITION(S) THERE IS REFLECTION OFF GLASS AND REAR DEFROST ELEMENT(S) WHICH CAUSE LIMITED REAR VISABILITY OUT OF REAR WINDOW GLASS."

Source: NHTSA ODI Complaints Database. Names and identifying details omitted.

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