What 62 owners told NHTSA about the 2023 Toyota Sienna

The complaint was filed on behalf of the contact's employer. The contact drives a 2023 Toyota Sienna Hybrid. The contact stated that while driving at 5 MPH, the vehicle independently accelerated. The contact stated that the acceleration occurred while the contact was making a right turn. The contact stated that the vehicle shifted from hybrid to high speed within a second. The brake pedal was depressed, and the vehicle failed to stop as intended. The vehicle crashed into another vehicle before coming to a complete stop. The vehicle sustained damage to the front driver's side door. No warning lights were illuminated. No Police report was filed. No injuries were sustained. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The contact referenced an unknown recall which had a similar failure description, however the VIN was not associated. The manufacturer was not made aware of the failure. The failure mileage was approximately 12,000. VIN unavailable.

NHTSA ODI 11733515

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