2008 Toyota Sienna: Reliability Data

Source: NHTSA — 570 complaints
570
Total Complaints
79,000mi
Median Mileage
STRUCTURE:BODY
Top Issue
49
Crash Reports

When Do Complaints Happen?

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

38,475 25th Percentile
79,000 Median Mileage
109,250 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

STRUCTURE:BODY
64
VEHICLE SPEED CONTROL
51
ELECTRICAL SYSTEM
42
ENGINE
39
UNKNOWN OR OTHER
34
STEERING
33
ELECTRONIC STABILITY CONTROL (ESC)
29
SERVICE BRAKES
28
POWER TRAIN
28
STRUCTURE:BODY:DOOR
25

Severity Assessment

49
Crashes
6
Fires
21
Injuries
0
Deaths

Sample Complaint Reports

"I WAS PROGRAMMING A NEW SIENNA VAN HOMELINK TO MY GARAGE DOOR OPENER. IT STARTED THE SEQUENCE AS ONE WOULD EXPECT.(.SMALL HOUSE ICON BLINKING )BUT NEVER APPARENTLY MOVED ON TO THE STEP OF RETRIEVING THE SIGNAL. AS REQUIRED ONE MUST HOLD THE GARAGE DOOR OPENER REMOTE ON TO TRY TO ACCEPT SIGNAL. AFTE..."
"I WAS PROGRAMMING A NEW SIENNA VAN HOMELINK TO MY GARAGE DOOR OPENER. IT STARTED THE SEQUENCE AS ONE WOULD EXPECT.(.SMALL HOUSE ICON BLINKING )BUT NEVER APPARENTLY MOVED ON TO THE STEP OF RETRIEVING THE SIGNAL. AS REQUIRED ONE MUST HOLD THE GARAGE DOOR OPENER REMOTE ON TO TRY TO ACCEPT SIGNAL. AFTE..."
"I LEASED A TOYOTA SIENNA FROM KING TOYOTA IN DEERFIELD BEACH. IT IS AN XLE WITH LEATHER, SUNROOF, AND DVD PLAYER. I REQUESTED THE "FACTORY DVD" PLAYER AND SUNROOF, AND WAS TOLD I WAS GETTING ONE. WHEN I GOT HOME WITH THE CAR, I PUT THE DVD SCREEN DOWN, SAT IN THE FRONT SEAT, AND REALIZED THE MONI..."

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