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Transmission and drivetrainPart report

2024 Toyota Sienna Hybrid Transmission and drivetrain Problems

Complaints
4about this part
Share
6%of 70 total for the year
Median mileage
68,000miles
Trend
Too newThis model year is less than 4 years old, so a trend is not meaningful yet.

NHTSA recorded 4 complaints about the transmission and drivetrain of the 2024 Toyota Sienna Hybrid, 6% of the 70 complaints for this model year. Where a mileage was given, the median is 68,000 miles.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

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

“The contact owns a 2024 Toyota Sienna. While the contact’s wife was driving 5 MPH out of a parking lot and attempting to make a left turn, the vehicle suddenly lost motive power and stalled. After approximately 3- 4 seconds while depressing the accelerator pedal several times, the vehicle eventually accelerated as needed. The vehicle was driven to the residence. There were no warning lights illuminated. The vehicle was not taken to the dealer to be diagnosed or repaired. The manufacturer was not informed of the failure. The failure mileage was 68,000.”

NHTSA complaint #11715215, filed 2026-02, 68,000 miles

“Unexplained acceleration during braking which has caused the vehicle to appear to accelerate further during braking actions causing driver to apple brakes harder”

NHTSA complaint #11751146, filed 2026-07

Transmission and drivetrain: other model years

YearComplaintsShare of year
202446%
202346%
202215%
202124%

Other parts of the 2024 Toyota Sienna Hybrid

Brakes
18 complaints
Other or unknown
17 complaints
Engine
7 complaints
Vehicle speed control
7 complaints
Body and structure
6 complaints
Forward collision avoidance
5 complaints
Seats
5 complaints
Visibility (wipers, defrost, mirrors)
4 complaints
Latches, locks and linkages
3 complaints
Tires
3 complaints
Fuel system
2 complaints
Suspension
2 complaints

← All problems reported for the 2024 Toyota Sienna Hybrid

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