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What 36 owners told NHTSA about the 2019 Lexus Nx300

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 (3)Fuel system (18)Brakes (5)Airbags (2)Body & structure (2)Speed control (2)Transmission & drivetrain (2)Driver assistance (1)Electronic Stability Control (esc) (1)Engine (1)Latches & locks (1)

1 of 36 complaints match · Engine · clear filters

Mar 6, 2025Transmission & drivetrainEngine

Air fuel imbalance. Air fuel ratio Imbalance. Rough idling. System too rich bank 1. Requires cylinder head removal. Other VIN#'s recalled; however, my vin # was not accounted for though experiencing the exact issues and codes.

NHTSA ODI 11646777

Working with the data? Download all 36 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 2019 Lexus Nx300 verdict →