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What 10 owners told NHTSA about the 2018 Ford Cmax Hev

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 (10)Crash / fire / injury (2)Airbags (2)Electrical system (2)Steering (2)Fuel system (1)Seat belts (1)Suspension (1)Transmission & drivetrain (1)Visibility & wipers (1)

1 of 10 complaints match · Fuel system · clear filters

Sep 14, 2022Fuel system

Recently, there has been a whiff of gasoline around my garage but there is more than one vehicle in there so I didn't figure out what the culprit was for a while. After completely filling up my car 9/3/2022, I parked it in the attached garage and in minutes my whole house smelled like gasoline. So I immediately parked it outside and ventilated the house. I took the car to a local shop and they said yes there's a gas odor but they didn't want to touch the repair because it's a hybrid. So all this time later on 9/14/2022, the Ford dealership saw the car and stated that it requires immediate repair and park it outside while we wait for parts. My C-Max has always gotten regular normal maintenance like oil changes and brakes, it got new tires recently. There was one major repair Ford did when the car was assembled incorrectly at the back hatch hinge seal so water was pouring into the circuit board and the battery compartment which screwed up the electronics, and the touchscreen needed replaced, but that was over a year ago and the car has been ok since. It has never ever been wrecked beyond little dings like shopping carts. It makes absolutely zero sense that the car would require this major repair at 82830 miles, and it's going to cost me $2400 which blows my mind. And it's dangerous! Now it has the doom vibe of a Pinto. I am extremely concerned for other C-max owners.

NHTSA ODI 11484528

Working with the data? Download all 10 complaints as CSV · fetched from NHTSA July 22, 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 Ford Cmax Hev verdict →