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What 18 owners told NHTSA about the 2021 Lincoln Nautilus Fhev

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 (18)Crash / fire / injury (1)Transmission & drivetrain (7)Body & structure (3)Electrical system (3)Engine (3)Fuel system (3)Backup camera & sensors (2)Engine & cooling (2)Speed control (1)

3 of 18 complaints match · Engine · clear filters

Jun 1, 2026Transmission & drivetrainEngineFuel system

2021 Lincoln Nautilus Reserve 2.7-liter twin-turbocharged V6 with coolant intrusion caused by a blown head gasket on cylinder #6. Vehicle would not accelerate properly and lurch forward when the gas pedal was pressed over 25%. The issue was taken to the shop and not found. The issue progressed and was taken to the shop a second time. The issue was found from a misfire code on cylinder #6. Vehicle is currently being repaired.

NHTSA ODI 11741378

Apr 26, 2026Electrical systemEngine

Vehicle died in parking lot. The electronics all worked, it just would not start and would not go into any gear. Had to have it towed to dealer for repair. They replaced the PCM but it still would not start. They again replaced the PCM and a fuse. The vehicle started. This is the FOURTH time for the exact same issue. It died twice on the previous owner, once while on the highway. It also died twice for the mechanic while trying to diagnose / test drive the unit for the previous owner. We were lucky it died where it could be towed as it's an all wheel drive unit. It has also had an O2 sensor replaced, and the previous owner suffered wiring issues (replaced the engine bay body harness), sunshade recoil failed, abnormal noise in rear end when turning, etc. All issues were corrected. However, I am uncomfortable that these issues may re-occur. Another failure of the PCM and/or electrical issue could cause the unit to die in a situation that could be life threatening.

NHTSA ODI 11733835

Feb 12, 2025Engine

Recall 24S55/24V635 was issued in October 2024, the issue with intake valves was discovered prior to October 2021. My car was manufactured in July 2021 within the time of inefficient intake valves. The problem continues to exist as there is no remedy. No remedy and no problem dealer won't look at the car, (even with a clicking noise) I don't drive it with concern my engine will quit in the middle of the road and I could be 500 miles from home. It actually has to stop dead in the middle of the road to be looked at. I can't trade it because it's under recall. It's a catch 22. Why can't these vehicles be taken in and tested to see if the intake valves will crack. Consumer safety should be all that is concerned with, not the bottom line. Shame on Ford/Lincoln for hesitation and NHTSA for allowing it.

NHTSA ODI 11642159

Working with the data? Download all 18 complaints as CSV · fetched from NHTSA July 18, 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 Lincoln Nautilus Fhev verdict →