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What 61 owners told NHTSA about the 2024 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 (61)Crash / fire / injury (7)Brakes (16)Speed control (7)Body & structure (6)Engine (6)Seats (5)Visibility & wipers (4)Driver assistance (3)Tires (3)Transmission & drivetrain (3)Fuel system (2)

5 of 61 complaints match · Seats · clear filters

May 21, 2026Seats

I notice the driver seat had a clip that popped off unto my carpet, when inspected it came off the seat rail. While moving my seat back using the electronic seat lever a white clip with two metal bearings was sticking out, I notice the ball bearings were not in place and had came off the white clip. Yes, it is available for inspection. This pose a safety concern as the seat rails will not function correctly when moving seat or using the memory seat buttons for each driver. I have not brought the vehicle to a dealer to inspect as there is a estimate fee involved. I am currently out of my 2 year toyota care warranty. I am not seeing any warning lamps or messages besides the seat making a clicking noise when I move the seat back and forth.

NHTSA ODI 11739212

Oct 11, 2025Seats1 injury

When a lever is pulled, the second row seat can move freely back and forth on a track until the back of the seat is returned to the upright position. I was driving at highway speeds and had to brake suddenly. The seat was at the back of the track with the lever pulled, and it slammed into the back of the driver seat, hurting my back. It stuck there putting pressure on the seat (which could be felt) until I stopped and had to use force to make it slide back.

NHTSA ODI 11692639

Apr 4, 2025Seats

The third-row seat does not lock in the stowed position. As one goes over speed bumps etc. it bounces up and down. The is no positive lock to ensure the third-row seat is secured in the stowed position. In the event of a head on collision the seat may fly out and forward either killing or injuring the passengers.

NHTSA ODI 11652705

Jul 29, 2024Seats

The 3rd row seats do not remain stowed when passing over a speed bump or dip in the road. Depending upon the speed of the vehicle, the seats might jump up several inches and almost return to the fully stowed position with a loud thud. The seats then bounce up a few inches from the fully stowed position and remain unsecured. It's possible that the seats might unexpectedly fully open at higher speeds.

NHTSA ODI 11605292

Jul 6, 2024Seats

Rear foldable seats do not lock down into compartment. They bounce up when you stop just a little hard. Cable has already broken when this occurs. Anything laid on top of these seats when folded will be ejected inside of car. Hitting driver in the head. This is very dangerous. Already brought to dealer and complained and nothing was done. They said that's the way it is. Someone will die if this problem is not taken care of.

NHTSA ODI 11599576

Working with the data? Download all 61 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 2024 Toyota Sienna verdict →