Buyer Research

2020 Ford Fusion — Should You Buy One?

Typical asking price: $13,000–$20,000. There are 3 high-severity known issues you need to know before handing over a check.

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Kestrel Take

The final Fusion, and a thinner record than the 2018–2019 — 178 complaints — but the shape is worth reading closely, because it is not the same story as the years before it. The single most-repeated part in the powertrain and engine clusters is the crankshaft flex plate: a rattle at idle that gets louder with the air conditioning on, diagnosed as a cracked plate, quoted around $3,000 at a dealer, on cars with 45,000 miles. The 1.5L coolant-intrusion fault is here too, in smaller numbers, and filings are still rising in 2025–2026. Then a scatter of SYNC module failures, trunk water leaks and dead batteries. A 2.0L or 2.5L or hybrid with a quiet idle and both software recalls done is a well-priced, comfortable sedan Ford stopped making too soon; a 1.5L or any car that rattles at idle needs the price to reflect the risk. A short record is not a clean bill — these cars are only now reaching the mileage where the 2018s started failing.

What we checked

Reconciled against public records, 2026-09-25

NHTSA holds 178 owner complaints for the 2020 Ford Fusion, and 3 recall campaigns.

A big number here usually means a lot of these were sold, not that it is a bad vehicle — popular models collect more complaints for the same rate of trouble. So the total on its own says little. What is worth reading is the shape of it. 37% of them are about one thing — the transmission and drivetrain. That much concentration is a genuine pattern rather than background noise, and it is the first thing to check on any example you look at.

3 recall campaigns cover this model year. Recalls are repaired free, for any owner, with no time limit on most safety campaigns — but only if someone books it in. Ask the seller to show it was done, or have any dealer check the VIN; it takes them a couple of minutes and costs nothing.

Counts come from the NHTSA complaint and recall database — free, public, and worth checking yourself.

Known Issues for the 2020 Ford Fusion

Ranked by wallet impact. These are documented, recurring problems — not freak accidents. How we decide that.

Cracked crankshaft flex plate — rattle at idle, worse with the A/C on, transmission has to come outHigh — wallet impact

The words 'flex' and 'plate' appear 35 times each in the 66 powertrain complaints, and the engine cluster has more. The flex plate is the steel disc bolting the engine to the torque converter; on these cars it cracks, and the first sign is a metallic rattle at idle from the driver's side near the transmission, louder with the air conditioning running, then a shudder and loss of power with no warning light. Owners report it at 45,000–50,000 miles and dealer quotes around $3,000 because the transmission comes out to reach it. On the test drive, let the car idle in park with the A/C on and the windows down and listen at the front left of the engine bay; a rhythmic tinny knock is the sound. Ford has released a revised part; a car that has already had it done is the one to prefer.

Repair cost (estimate): $1,500–$3,200

Source: NHTSA complaints filed under the transmission and drivetrain (66), the engine (55).

1.5L EcoBoost coolant intrusion and overheating — fewer filings than 2018–2019, same failureHigh — wallet impact

Within the 55 engine complaints, the 1.5L EcoBoost story from the 2018 and 2019 Fusions repeats: white smoke on startup, coolant into cylinder 2, an 'Engine Coolant Over-Temperature' message at 35 mph, and a mechanic saying the block has failed. One owner's cooling fan died and blew its fuses, the engine overheated and took the head gasket with it — a reminder to watch the temperature gauge on a long idle. Fewer people have filed than on the 2018, partly because these cars are younger; the filings are still climbing. Ask a Ford dealer whether this VIN has any coolant-intrusion coverage left, and on a 1.5L do the cold-start smoke check and a cooling-system pressure test before you buy.

Repair cost (estimate): $4,500–$8,000 for a replacement engine; $1,500–$3,000 for a head gasket caught early — about 48% of what this car is typically worth

Source: NHTSA complaints filed under the engine (55).

6F35 transmission — leaking cooler line, slipping, harsh downshifts, shifting itself back to parkMedium

The non-flex-plate part of the 66 powertrain complaints: a transmission cooler line that leaked fluid for months with no warning light until the transmission was damaged, gears slipping and 'winding' at 98,000 miles, a violent downshift to first at 45 mph that nearly caused a rear-end crash, and the rotary shifter putting the car back into park on its own. Look under the front of the car for red fluid on the lines and the subframe, check the dipstick-less transmission for a fluid level if a shop can, and on the test drive do a few gentle stops from 50 mph and feel for a jerk as it drops gears.

Repair cost (estimate): $200–$600 for a cooler line; $1,500–$3,500 for a rebuilt transmission if it ran low

Source: NHTSA complaints filed under the transmission and drivetrain (66).

SYNC module (APIM) failing, water in the trunk wiring, and batteries that go flatMedium

37 electrical complaints, two fires. Three separate stories: the APIM — the computer behind the SYNC screen — dies or needs a hard reset to bring back the radio, navigation, instrument panel and the phone app, and the dealer calls it a known issue with no recall; water gets past the tail-light assemblies into the trunk and soaks the wiring harness in the spare-well, which is a Fusion-wide leak owners find by Googling; and fleet owners report dead batteries with no cause found. A car in park that cannot be shifted into gear also lands here. Lift the trunk carpet and feel the spare well for damp, then test every screen function and let the car sit off for ten minutes before a restart.

Repair cost (estimate): $150–$400 for tail-light seals and drying out; $800–$1,500 for an APIM

Source: NHTSA complaints filed under electrics and electronics (37).

Fusion Energi plug-in battery control module — loss of power or fire (recall 23V440)High — wallet impact

Recall 23V440 covers the 2019–2020 Fusion Energi: the battery energy control module can be damaged by excess voltage and current, causing loss of drive or a fire in the trunk area, and owners were told not to charge until fixed. The complete remedy is a replacement high-voltage battery plus software, and batteries were on back order for a long time. If the car is an Energi, the NHTSA VIN lookup must show the recall completed and the invoice should list a new battery, not just a software update; plug it in and confirm it charges. The two fires in this year's electrical cluster are the reason to be strict about it. Gas and standard-hybrid Fusions are not involved.

Repair cost: $0 with the recall — verify it was performed

Source: 3 NHTSA recall campaigns on this model year.

Steering pull and loss of assist — 12 complaints, three crashesMedium

Small numbers but a high crash share: 12 steering complaints and 3 of them ended in a collision. The accounts describe the car pulling hard to one side at highway speed or a sudden loss of power-assist; a couple mention prior collision repair, which on a 2020 with a used-car-lot history is worth knowing. Drive it at 65 mph on a straight road with a light grip and see whether it tracks true, and ask for the repair history of any car with a repainted panel.

Repair cost (estimate): $150–$2,000

Source: NHTSA complaints filed under steering (12).

Rearview camera software (recall 25V442) and block heater (recall 25V685) — two 2025 recalls, easy to missLow

Two recalls issued in late 2025 that many 2020 Fusions have not yet been in for. 25V442 updates the rearview camera software because the image can go blank or stay on the screen after shifting to drive. 25V685 replaces the optional engine block heater, which can crack and short with a fire risk when plugged in — only on cars that have the heater cord at the grille. Both free, both a VIN lookup, both a reasonable thing to ask the seller to do before the sale.

Repair cost: $0 with the recall — verify it was performed

Source: 3 NHTSA recall campaigns on this model year.

Walk-Away Red Flags

✗Metallic rattle at idle from the transmission side that gets louder with the A/C on
✗1.5L EcoBoost with white smoke on a cold start or a coolant level below the minimum line
✗Red fluid under the front of the car or on the transmission cooler lines
✗Damp carpet or standing water in the spare-tyre well
✗SYNC screen that is black or needs a reset to bring the radio back
✗Energi with 23V440 still open, or a seller who cannot show the battery was replaced

Good Signs

✓Flex plate already replaced with the revised part, on a dealer invoice
✓2.0L EcoBoost, 2.5L, or standard hybrid rather than the 1.5L
✓Quiet idle with the A/C on and no vibration in park
✓All three recalls closed on the NHTSA VIN lookup, including the two from 2025
✓Tail-light seals replaced and the trunk well dry after rain