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What 162 owners told NHTSA about the 2014 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 (162)Crash / fire / injury (9)Body & structure (44)Electrical system (16)Airbags (13)Engine (11)Fuel system (11)Speed control (11)Brakes (10)Wheels (9)Steering (8)Suspension (7)

1 of 162 complaints match · Speed control · crash/fire/injury only · clear filters

Jan 26, 2014Fuel systemSpeed controlCrash

I PARKED MY CAR ON AN UPWARD INCLINING DRIVEWAY AND LEFT IT IN IDLE. I WENT INSIDE THE HOUSE TO GO AND GET MY DOG AND SPEAK TO MY IN-LAWS. I BROUGHT THE KENNEL OUT TO THE CAR, LIFTED THE TAILGATE AND PUT THE KENNEL IN. I WENT BACK IN THE HOUSE, GOT THE DOG FOOD, PUT THE DOG FOOD IN THE TAILGATE. I WENT BACK INSIDE AND WAS SPEAKING TO MY IN-LAWS WHEN ALL OF A SUDDEN WE HEARD A LOUD CRASH. WE WENT OUTSIDE AND MY CAR HAD ACCELERATED AND CRASHED INTO THEIR GARAGE. THERE WAS NO ONE IN THE CAR AT THE TIME OF THE ACCELERATION. THE DOG WAS STILL IN THE HOUSE WITH US. THE CAR WAS IN PARK. THE TAILGATE WILL NOT LIFT UNLESS THE CAR IS IN PARK WHILE IDLING. WHEN THE CAR IS IN DRIVE, THE DOORS LOCK. SO, WE KNOW IT WAS IN PARK. THE CAR CAUSED EXTENSIVE DAMAGE TO THE GARAGE FROM THE FORCE OF THE ACCELERATION. THE CAR ALSO HAD GRAVITY WORKING AGAINST IT, AS IT WAS AT AN UPWARD INCLINE. *TR

NHTSA ODI 10561560

Working with the data? Download all 162 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 2014 Toyota Sienna verdict →