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What 63 owners told NHTSA about the 2018 Nissan Leaf (40 Kwh Battery)

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 (63)Crash / fire / injury (12)Brakes (17)Electrical system (17)Driver assistance (13)Fuel system (12)Speed control (12)Engine (6)Airbags (5)Steering (5)Body & structure (4)Transmission & drivetrain (3)

1 of 63 complaints match · Fuel system · crash/fire/injury only · clear filters

Jan 13, 2025Electrical systemBrakesFuel systemCrash

Car was descending towards Kailua on the [XXX] on Oahu, HI. Dash lit up with warnings and acceleration and brake pedals stopped working. Brake pedal went to the floor with erratic pulsing sensation and very little brake power. Driver drove car into jersey wall to slow and stop vehicle. Battery state was 60% and battery was replaced under warranty about 1 year ago. While waiting for tow, powered on vehicle and symptoms remained as far as I could check. Brakes had no power and had to use ebrake to keep vehicle from rolling. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI 11635657

Working with the data? Download all 63 complaints as CSV · fetched from NHTSA July 14, 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 2018 Nissan Leaf (40 Kwh Battery) verdict →