This page covers 1 recall, 62 owner complaints and EPA fuel economy for the 2023 Toyota Sienna.
35 mpg combined
6.7 L/100km
Minivan - 4WD
Fuel economy data from fueleconomy.gov (EPA / U.S. Dept. of Energy). Annual cost based on 15,000 mi/yr at 55% city driving and current fuel prices. MPG is U.S. gallons; L/100km converted.
Brake behavior dominates complaints filed for the 2023 Toyota Sienna, making up roughly a third of all reports. The most consistent pattern involves the vehicle surging or lurching forward while braking at low speeds, typically under 20 mph. Owners describe pressing the brake pedal and feeling an unexpected burst of acceleration rather than a smooth deceleration, with several noting it caught them off guard in traffic or near stops. A smaller cluster of reports describes a related symptom, a sudden jerk or power surge during the hybrid system's transition between drive modes at low speeds. Visibility and electrical system complaints each account for a smaller share of reports but lack enough narrative detail across multiple filings to identify a clear symptom pattern. The low-speed brake surge remains the standout theme, with owners consistently describing it as an abrupt, destabilizing sensation rather than gradual brake fade or pedal feel variation.
62
Total Complaints
8
Crash-Related
3
With Injuries
By System
At a glance
What can fail
The bolts securing the third-row seatbacks may not be properly tightened, affecting seat stability and safety restraint function.
What the fix does
Dealers will tighten all third-row seat assembly bolts at no charge.
Summarized — see the official notice for exact wording, dates, and contacts.
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Complaints are owner-reported and reflect individual experiences, not confirmed defects. They are distinct from recalls. Data sourced from the national vehicle safety complaint database. See trending complaints →
