Ford Fusion Hev
Problems & Worst Years
Every reported problem for the Ford Fusion Hev, model year by model year — ranked from 1119 federal NHTSA complaints across 2016–2019.
Coolant intrusion into the engine is the throughline across every model year of the Ford Fusion HEV in this data, and 2016 is where it shows up hardest. That year alone accounts for 702 complaint occurrences across 35 distinct problems, three of them safety-rated, led by 279 reports of coolant intrusion into the engine and 212 more describing transmission shifter cable failure — a pairing that points to a cooling system letting coolant reach places it shouldn't alongside a shifter mechanism that could fail to engage properly. Rounding out the year are transmission shifting issues, stalling at idle, and general overheating, all smaller in volume but consistent with the same pattern.
2017 tells much the same story at a smaller scale — 528 occurrences across 18 problems, two safety-rated. Engine failure tied to coolant intrusion again leads (200 reports), paired with a shift system fault (90) and overheating from a coolant leak (90). A cluster of 76 reports describes engine misfire linked to spark plug issues, and transmission failure causing gear-shifting trouble adds another 12.
By 2019 the volume drops sharply to 159 occurrences across 14 problems, only one safety-rated, and the picture shifts slightly: the single largest category is owners reporting that a recall had not been resolved (29 reports), followed by continuing reports of coolant leaking into cylinders and coolant intrusion causing misfires and overheating. A transmission complaint about the vehicle shifting itself back into park rounds out the year's top issues.
None of this means every Fusion HEV on a lot is a gamble — it means the coolant and shifter systems deserve real attention during a pre-purchase inspection, particularly on 2016 and 2017 examples, and that the 2019 shows comparatively fewer complaints, though that's partly because it's had less time on the road to accumulate them. Complaint volume reflects what owners chose to file with NHTSA, not a measured failure rate, and a clean service history and independent inspection tell you more about any individual car than the model year does.
Ford Fusion Hev problems by year
Complaint volume by model year (bar = relative to the worst year). Theworst yearsare the most-complained-about, weighted by safety-risk problems.
| Year | Complaint volume | Problems | Safety / High | Most common problem |
|---|---|---|---|---|
| 2016worst | 569 | 35 | 3/10 | Coolant Intrusion into Engine Engine · 279 complaints |
| 2017worst | 427 | 18 | 2/3 | Engine Failure Due to Coolant Intrusion Engine · 200 complaints |
| 2019worst | 123 | 14 | 1/8 | Recall Non-Resolution Other · 29 complaints |
Data source: U.S. National Highway Traffic Safety Administration (NHTSA) owner complaints and recalls, 2016–2019. Problem clustering and year rankings are derived from the complaint record; complaint volume reflects reports filed, not total incidence or fault rate. Vehicle image is illustrative.