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What 36 owners told NHTSA about the 2020 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 (36)Crash / fire / injury (1)Fuel system (8)Transmission & drivetrain (8)Electrical system (6)Engine (6)Body & structure (3)Steering (3)Brakes (2)Airbags (1)Electronic Stability Control (esc) (1)Seats (1)

1 of 36 complaints match · Seats · clear filters

Oct 20, 2020Seats

PLEASE NOTE THAT THE TOYOTA ALL WEATHER FLOOR MATS INCLUDED WITH THE 2020 SIENNA DO NOT ALLOW THE 2ND ROW SEATS TO SLIDE BACK AND FORTH ON THE RAILS WITHOUT GETTING JAMMED ON THE MATS. MY SON WAS IN THE 3RD ROW AND THE SEAT GOT JAMMED N THE MAT AND HE COULD NOT EXIT THE VEHICLE.

NHTSA ODI 11365346

Working with the data? Download all 36 complaints as CSV · fetched from NHTSA July 18, 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 2020 Toyota Sienna verdict →