2023 Toyota Sienna owner complaints
69 complaints filed with NHTSA, including 8 crashes, 0 fires, 5 injuries and 0 deaths.
Problems by component
Recent complaints
October 18, 2026Seat Belts
The seat belt latch stopped working. It appears the locking mechanism failed and it is stuck in the locked state which prevents the seat belt from latching. This is a critical failure in vehicle safety. It had been inspected by Toyota and they do not know what happened and are not willing to fix it unless we pay for it. This issue should be a recall.
October 14, 2026Air Bags
My 2023 Toyota Sienna LE has experienced a recurring Supplemental Restraint System (SRS) airbag warning that appears to be triggered by normal movement of the second-row seats. The vehicle has been brought to Cobb County Toyota in Georgia multiple times for this issue. Previous repairs included replacement of the wiring harness. Following that replacement, the warning disappeared for a period of time. However, the SRS warning recently returned after I moved the second-row seats forward during normal vehicle use. I am concerned that the seat wiring, electrical connections, or related components may be vulnerable to strain or disconnection during normal seat adjustment. Despite previous repair
October 13, 2026Service Brakes
The contact owns a 2023 Toyota Sienna Hybrid. The contact stated that when attempting to apply the brakes while driving at 30 MPH or at lower speeds, the vehicle suddenly lunged forward. The failure occurred approximately 7 times, with the most recent occurrence causing the vehicle to lunge into an intersection, where oncoming traffic managed to avoid a collision. On that same day, the failure occurred 3 to 4 times. The vehicle was taken to the dealer, where the failure was diagnosed, and the contact was advised that a software update titled "Braking Comfort" was available to improve brake performance; however, the software update was not performed. The failure mileage was approximately 35,4
August 27, 2026Unknown or Other
On Toyota Sienna XSE 2023 in-cabin rear view mirror gets completely obstructed by the entertainment system LCD screen when opened.
August 25, 2026Service Brakes
When I driving slow and begin to brake the car does not slow down or stop. It feels like I'm hydroplaning.