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What 14 owners told NHTSA about the 2017 Toyota Avalon

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 (14)Crash / fire / injury (7)Engine (6)Speed control (3)Airbags (2)Electrical system (2)Body & structure (1)Brakes (1)Fuel system (1)

6 of 14 complaints match · Engine · clear filters

Oct 24, 2022Electrical systemSpeed controlEngine

Leaving a parking lot, the car jumped out of gear. Thought maybe I had bumped the gear selector but attempts at putting the car in gear resulted in grinding noises and the only option was to put it in PARK. Check engine light came on. Mechanic diagnosed a speed sensor. Had this happened on the freeway or while trying to pass another car on a two lane and a speed sensor disable the entire car to me is dangerous and should be addressed. Had the check engine light come on, I would have had the sensor replaced right away. I now feel this is an unsafe situation that could arise in other 2017 Toyota cars

NHTSA ODI 11490639

Jul 20, 2019Engine2 deaths

TOYOTA'S FAILURE TO INSTALL AN AUTO-STOP CAUSED THE CARBON-MONOXIDE POISONING OF TWO (MORE) PEOPLE, MANY DOZENS OF SUCH DEATHS REPORTED. (DETAIL: THEY HAD LIKELY STOPPED THE ENGINE, BUT THE WIRELESS FOB CAN RE-START; AND THIS MODEL HAS AN AUTO STOP/START FUNCTION THAT CAN ALSO LEAD TO DEATH.] NOTE: NOT MY CAR, MY PARENTS.

NHTSA ODI 11233544

Jun 14, 2019Engine2 deaths

TOYOTA AVALON FAILS TO HAVE AN IGNITION AUTO SHUT OFF WHICH LED TO DEATH OF TWO INDIVIDUALS. THIS DESIGN FLAW DID NOT PREVENT THE CAR FROM IDLING INDEFINITELY AND FILLING THE HOUSE WITH CARBON MONOXIDE' A TOXIC FATAL GAS. THE CAR DOES NOT HAVE PROPER EXTERNAL WARNINGS LIKE A HONK TO ADVISE A DRIVER THEY MAY HAVE REMOVED THE KEY FROM THE CAR.

NHTSA ODI 11220141

Jun 14, 2019Engine2 deaths

TOYOTA'S FAILURE TO INSTALL AN ENGINE AUTO STOP CAUSED THE CARBON MONOXIDE DEATH OF TWO PEOPLE. FAILURE TO HAVE PROPER OUTSIDE WARNINGS LIKE A HONK TO WARN THE OPERATOR NOT TO REMOVE THE KEY FROM THE CAR LED TO THESE DEATHS. VEHICLE WAS STATIONARY IN A GARAGE. PEOPLE WERE INSIDE THE HOME. HTTPS://WWW.LEGACY.COM/OBITUARIES/HERALDTRIBUNE/OBITUARY.ASPX?N=JAMES-LIVINGSTON&PID=192908732 HTTPS://WWW.LEGACY.COM/OBITUARIES/HERALDTRIBUNE/OBITUARY.ASPX?N=SHERRY-PENNEY&PID=192908731

NHTSA ODI 11220206

Jun 14, 2019Engine2 deaths

TOYOTA'S FAILURE TO INSTALL AN ENGINE AUTO STOP CAUSED THE CARBON MONOXIDE DEATH OF TWO PEOPLE. FAILURE TO HAVE PROPER OUTSIDE WARNINGS LIKE A HONK TO WARN THE OPERATOR NOT TO REMOVE THE KEY FROM THE CAR LED TO THIS DEATH.

NHTSA ODI 11220211

Jun 14, 2019Engine2 deaths

TOYOTA'S FAILURE TO INSTALL AN ENGINE AUTO STOP CAUSED THE CARBON MONOXIDE DEATH OF TWO PEOPLE. CAR WAS STATIONARY. FAILURE TO HAVE PROPER OUTSIDE WARNINGS LIKE A HONK TO WARN THE OPERATOR NOT TO REMOVE THE KEY FROM THE CAR LED TO THIS DEATH.

NHTSA ODI 11220224

Working with the data? Download all 14 complaints as CSV · fetched from NHTSA July 15, 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 2017 Toyota Avalon verdict →