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What 62 owners told NHTSA about the 2023 Toyota Sienna

These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.

All (62)Crash / fire / injury (9)Brakes (24)Visibility & wipers (7)Electrical system (6)Airbags (3)Body & structure (3)Seats (3)Seat belts (2)Speed control (2)Transmission & drivetrain (2)Driver assistance (1)

1 of 62 complaints match · Electrical system · crash/fire/injury only · clear filters

May 14, 2025Electrical systemSpeed controlBrakesCrash

multiple times this has been an issue. I stepped on the break and the car essentially leaps forward typically when going up down or straight. In November 2024 it happened while going up a hill slowly and I bumped into the vehicle ahead of me. My vehicle had no damage, but the car in front of me had to get a new skid plate and my insurance doubled because of it. Since the incident in November 2024, my car has unintentionally accelerated intermittently. finally, April 2025 this happened my car started shaking jolted forward, engine revving, and then my check engine light came on then immediately contacted my local dealership and scheduled an appointment to get my car in. They have had my vehicle since then and have said it is not safe to give it back to me so I am currently driving a loaner vehicle.

NHTSA ODI 11660961

Working with the data? Download all 62 complaints as CSV · fetched from NHTSA July 19, 2026

How to use these: a complaint is one owner’s report, filed voluntarily and published unverified. Patterns matter more than any single story. If several owners describe the same failure at similar mileage, put that system at the top of your pre-purchase inspection list. Back to the full 2023 Toyota Sienna verdict →