What is the 2010-2020 Ford Fusion Hybrid High-Voltage Battery Degradation and Failure?

Ford Fusion Hybrid spans two generations with different high-voltage batteries — degradation patterns differ. 1st-gen 2010-2012 (NiMH, ~1.4 kWh): typical degradation appears at 100,000-150,000 miles with reduced EV-mode range and increased ICE intervention. Replacement runs $2,50… Repairs typically run $1,500-$7,000. Severity: high.

What is the 2010-2019 Ford Fusion 6F35 6-Speed Automatic Harsh/Delayed Shifting and Torque Converter Shudder?

The 6F35 six-speed automatic is prone to harsh, banging, or delayed shifts (most often 2-3 and 3-4) plus a shudder/vibration when the torque converter clutch locks up at a steady 40-60 mph cruise. Root causes are worn valve-body separator-plate O-rings and bores that can no longe… Repairs typically run $250-$3,500. Severity: high.

What is the 2010-2019 Ford Fusion AWD Power Transfer Unit (PTU) Overheating and Fluid Leak Failure?

On AWD Fusions the Power Transfer Unit holds only about a quart of gear oil with no dipstick, service interval, or cooling, sitting next to hot exhaust and transaxle. The fluid cooks and breaks down, becoming thick, gummy, and black, and the seals leak. Owners report a burning sm… Repairs typically run $400-$3,100. Severity: high.

What is the 2013-2018 Ford Fusion Front Brake Hose Rupture - Loss of Brake Fluid and Longer Stopping (Recall 23S12)?

A design flaw in the front brake hoses lets them rupture over time, leaking brake fluid and increasing stopping distance. Ford recalled roughly 1.2-1.28 million Fusion and Lincoln MKZ sedans (recall 23S12) in 2023 after an NHTSA investigation. A ruptured hose causes a low brake-f… Repairs typically run $0-$400. Severity: high.

What is the 2006-2020 Ford Fusion HVAC Blend Door Actuator Failure - Clicking/Knocking Behind Dash, No Heat or AC?

The plastic gears inside the HVAC blend-door actuator strip out, so the door can no longer move to route air correctly. The classic symptom is a repeated clicking or knocking noise from behind the dash (often at startup or when changing temperature), along with air stuck on one t… Repairs typically run $156-$400. Severity: medium.

What is the 2010-2018 Ford Fusion Parasitic Battery Drain - Dead Battery / No Start (BCM & Modules)?

Many Fusion owners report the battery going dead overnight or over a weekend from a parasitic draw. Common culprits are a module that fails to sleep - Body Control Module (BCM), APIM/infotainment, or amplifier - as well as the PATS anti-theft transceiver circuit on earlier cars. Repairs typically run $150-$1,000. Severity: medium.

What is the 2013-2018 Ford Fusion Water Intrusion into Trunk/Tire Well - Wet Carpet and Corroded Modules?

Fusion owners frequently find water pooling in the trunk/spare-tire well and wet rear carpet. Sources include leaking taillight gaskets/plastic rivet pass-throughs, deteriorated trunk and rear-window seals, and split spot-welds in the channel under the rear glass. Standing water… Repairs typically run $50-$600. Severity: medium.

Ford · Known Issues

2017 Ford Fusion Problems: 9 Known Issues

2017 model year · 5,630+ owner reports · Updated September 2026

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According to Au7o's analysis of 5,630+ owner reports, the 2017 Ford Fusion has 9 documented known issues, with 6 rated critical. The most serious are Electric Power Steering (EPS) Failure - Sudden Loss of Assist ($0-$2,800 repair), 1.5L EcoBoost Coolant Intrusion into Cylinders - Internal Engine Block Failure ($0-$7,000 repair), Hybrid High-Voltage Battery Degradation and Failure ($1,500-$7,000 repair), 6F35 6-Speed Automatic Harsh/Delayed Shifting and Torque Converter Shudder ($250-$3,500 repair), AWD Power Transfer Unit (PTU) Overheating and Fluid Leak Failure ($400-$3,100 repair) and Front Brake Hose Rupture - Loss of Brake Fluid and Longer Stopping (Recall 23S12) ($0-$400 repair). The most commonly reported issue is Electric Power Steering (EPS) Failure - Sudden Loss of Assist with 2,340 owner reports. Across all issues with published estimates, repair costs range from $50 to $7,000. DIY maintenance guides at au7o.io.

Frequently Asked Questions

What are the most common Ford Fusion problems?

According to Au7o's analysis of 5,630+ owner reports, the 2017 Ford Fusion has 9 documented issues. The most frequently reported are: Electric Power Steering (EPS) Failure - Sudden Loss of Assist, 1.5L EcoBoost Coolant Intrusion into Cylinders - Internal Engine Block Failure, Hybrid High-Voltage Battery Degradation and Failure. Of these, 6 are rated critical and should be addressed promptly.

Is the Ford Fusion reliable?

The 2017 Ford Fusion has 9 known issues documented across 5,630+ owner reports. 6 issues are rated critical: Electric Power Steering (EPS) Failure - Sudden Loss of Assist and 1.5L EcoBoost Coolant Intrusion into Cylinders - Internal Engine Block Failure and Hybrid High-Voltage Battery Degradation and Failure and 6F35 6-Speed Automatic Harsh/Delayed Shifting and Torque Converter Shudder and AWD Power Transfer Unit (PTU) Overheating and Fluid Leak Failure and Front Brake Hose Rupture - Loss of Brake Fluid and Longer Stopping (Recall 23S12). Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.

How much does it cost to fix common Ford Fusion problems?

Repair costs for known Ford Fusion issues range from $0 to $7,000, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, Electric Power Steering (EPS) Failure - Sudden Loss of Assist, typically costs $0-$2,800 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.

What is the 2013-2018 Ford Fusion Electric Power Steering (EPS) Failure - Sudden Loss of Assist?

2014-2018 Ford Fusions use a different EPS module revision than the 2011-2013 recall (NHTSA 15V340) — but owners still report sudden loss of power steering assist, particularly at higher mileage. Without recall coverage, repairs are owner-paid: rack replacement typically $1,200-$… Repairs typically run $0-$2,800. Severity: high.

All 9 Known Issues

Other Ford Models

Frequently Asked Questions

What are the most common Ford Fusion problems?

Is the Ford Fusion reliable?

How much does it cost to fix common Ford Fusion problems?

What is the 2013-2018 Ford Fusion Electric Power Steering (EPS) Failure - Sudden Loss of Assist?

What is the 2014-2019 Ford Fusion 1.5L EcoBoost Coolant Intrusion into Cylinders - Internal Engine Block Failure?

2010-2020 Ford Fusion: Hybrid High-Voltage Battery Degradation and Failure#

2010-2018 Ford Fusion: Parasitic Battery Drain - Dead Battery / No Start (BCM & Modules)#

2013-2018 Ford Fusion: Electric Power Steering (EPS) Failure - Sudden Loss of Assist#

2014-2019 Ford Fusion: 1.5L EcoBoost Coolant Intrusion into Cylinders - Internal Engine Block Failure#

2010-2019 Ford Fusion: 6F35 6-Speed Automatic Harsh/Delayed Shifting and Torque Converter Shudder#

2010-2019 Ford Fusion: AWD Power Transfer Unit (PTU) Overheating and Fluid Leak Failure#

2013-2018 Ford Fusion: Front Brake Hose Rupture - Loss of Brake Fluid and Longer Stopping (Recall 23S12)#

2006-2020 Ford Fusion: HVAC Blend Door Actuator Failure - Clicking/Knocking Behind Dash, No Heat or AC#

2013-2018 Ford Fusion: Water Intrusion into Trunk/Tire Well - Wet Carpet and Corroded Modules#