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What 6 owners told NHTSA about the 2021 Toyota Prius Phev

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 (6)Crash / fire / injury (1)Engine (2)Fuel system (2)Brakes (1)Driver assistance (1)Electrical system (1)Lane Departure (1)Speed control (1)Wheels (1)

1 of 6 complaints match · Brakes · clear filters

Jun 13, 2023Electrical systemBrakesEngineCrash

The car accelerated without my foot on the accelerator, brake did not respond, and I had to drive through grass and a rock-filled ditch until after about 10 seconds the car returned to my control.

NHTSA ODI 11526893

Working with the data? Download all 6 complaints as CSV · fetched from NHTSA July 20, 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 2021 Toyota Prius Phev verdict →