Skip to content
Transmission and drivetrainPart report

2006 Toyota Sienna Transmission and drivetrain Problems

Complaints
40about this part
Share
4%of 1,017 total for the year
Median mileage
73,900miles
Trend
RisingComplaints filed in the last 3 full calendar years are at least 25% higher than in the 3 years before.

NHTSA recorded 40 complaints about the transmission and drivetrain of the 2006 Toyota Sienna, 4% of the 1,017 complaints for this model year. Where a mileage was given, the median is 73,900 miles. 4 of these say a crash was involved, according to the filers. 1 recall campaign on record is filed under a similar system.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“Car was in motion, turning to park on slope parking area then gear fall out and rolling backward, therefore try to shift into parking gear, all gears didn't work, gear shift was not working at all then car rolled downhill to other side of curve. To prevent accident I got out to stop the car from rolling by holding on to the rear door handle, could'nt stop it, in the process I had injury to my left shoulder and back.”

NHTSA complaint #11311470, filed 2020-02, 1 miles

“The dash start cracking up for no apparent reason and the car is mostly park inside a garage day and night. I have called dealers and nothing has been done so far and I have been told that's a manufacturer defect and it should be corrected by dealer. The transmission some times does not change the gears and others stop to work and I could cause a rear end collision.”

NHTSA complaint #10511602, filed 2013-05, 42,000 miles

“I was traveling at 65mph on interstate 90 east. The car while driving when I was giving gas it didnt run forward and it just stopped on the middle of the road with my kids in it. I took it to the dealer and dealer told me that the radiator pipe got corroded so the cooling oil from the transmission didnt flow properly and the transmission failed during the car running.the Toyota has safety recall of excessive corrosion for the spare tire then same thing applies as the corrosion part is underneath of the engine.”

NHTSA complaint #10723691, filed 2015-06, 185,000 miles

“Topic: Toyota acceleration problem: on july 4th at 10:00 am, as my 2006 Sienna Toyota was emerging from the dryer-end of well known carwash, the signal at the terminal point indicated that I was to move my car out of the structure. I shifted out of neutral into drive. At the instant I put the car into drive, my vehicle accelerated out of the car wash structure, missing about 12 vehicles and drivers in the parked area drying their cars. …”

NHTSA complaint #10343770, filed 2010-07, 48,000 miles

“The car was in park in the driveway with the engine running. Without putting the car in drive, the car rolled forward after I exited the vehicle. I quickly turned to get back in the car to stop the vehicle, as it was rolling towards my other car in the driveway. In doing so, I suffered a knee injury, fell to the ground I injured my knee and was unable to stop the vehicle before it made contact with my other car. The injury to my knee was significant, required surgery, and I have still not returned to work.”

NHTSA complaint #10545757, filed 2013-09, 171,000 miles

Related recalls

Related service bulletins

Transmission and drivetrain: other model years

YearComplaintsShare of year
202222%
202185%
2020821%
2019715%
20182028%
20173824%
201634%
2015125%
201474%
2013148%
2012177%
2011305%
20101710%
200963%
2008389%
2007319%
2006404%
2005484%
2004894%
20031010%
2002137%
200163%
20006718%
1999115%
1998238%

Other parts of the 2006 Toyota Sienna

Air bags
307 complaints
Body and structure
261 complaints
Electrical system
85 complaints
Brakes
73 complaints
Latches, locks and linkages
67 complaints
Tires
65 complaints
Steering
61 complaints
Other or unknown
59 complaints
Wheels
54 complaints
Vehicle speed control
50 complaints
Seat belts
38 complaints
Electronic stability control
30 complaints

← All problems reported for the 2006 Toyota Sienna

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology