On vehicles equipped with an automatic transmission it is imperative that the converter pilot hub be greased with Motorcraft Multi-Purpose Grease Spray XL-5-A even if grease was not applied from the factory. Also verify that the engine/transmission alignment dowel pins are present as well as the engine crankshaft dowel pin, if equipped, when installing the transmission. Failure to adequately lubricate the converter hub greatly increases the likelihood of the flexplate cracking in the future. Missing dowels may cause a misalignment issue also resulting in a premature failure. Refer to Workshop Manual (WSM), Section 307-01.
full bulletin at NHTSA ↗2011 Ford Fusion powertrain problems
moderate 232 complaints filed with NHTSA · avg repair $2,500 · see powertrain across all vehicles →
Failure mileage
Complaints
232
Recalls
0
Avg fix
$2,500
2crashes
1fire
When does it fail?
Of the 232 powertrain complaints filed for the 2011 Ford Fusion, here's the actual mileage breakdown — failures cluster heaviest at 25,000-50,000 mi.
0-25k
25-50k
50-75k
75-100k
100-125k
125-150k
150k+
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
What stands out
Owners have filed 232 powertrain complaints with NHTSA against this vehicle, but no formal recall covers the issue — the federal record reflects what manufacturers have admitted, not everything owners are reporting.
No new NHTSA powertrain complaint has been filed on this vehicle in over 12 years — the issue may be aging out of the active population.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering powertrain on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
6F35 TRANSMISSION - FLUID LEAK AT LEFT SIDE HALFSHAFT SEAL BUILT ON OR BEFORE 10/14/2013 ISSUE Some 2009-2014 Escape, 2009-2011 Mariner, 2010-2014 Fusion, 2010-2011 Milan, 2012-2014 Edge/Explorer, and 2013-2014 Taurus/MKT/MKZ vehicles built on or before 10/14/2013 and equipped with a 6F35 automatic transmission may exhibit a fluid leak from the left hand (LH) transmission halfshaft seal due to wear on the transmission case bushing.
full bulletin at NHTSA ↗6F35 Transmission - Fluid leak at left side halfshaft seal - built on or before 10/14/2013
full bulletin at NHTSA ↗FORD: IF THERE IS AN INTERMITTENT LACK OF POWER, SURGE, OR HESITATION WHILE DRIVING THE BRAKES WILL OVERRIDE ACCELERATION.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
The failure pattern owners describe
The 2011 Ford Fusion has a pervasive throttle body defect causing sudden, unexplained loss of engine power while driving—the engine keeps running but refuses to accelerate no matter how hard you press the pedal. This happens at any speed, from city streets to 75 mph on freeways, and the vehicle either limps to a stop or coasts to the shoulder. Restarting temporarily fixes it, but the problem recurs, and dealership scans often find no codes to diagnose. Owners report this exact failure hundreds of times across online forums; NHTSA opened an investigation in 2012, but Ford's response has been sluggish—a "customer satisfaction program" that covers only automatic transmissions, leaving manual transmission owners stranded.
Transmission trouble is equally common: harsh jerking from cold starts, violent engagement into gear, and in at least one documented case, complete internal disintegration at highway speed forcing a multi-thousand-dollar rebuild. The transmission may slip out of park while running. Battery failures also cluster in complaints—acid eating through wiring harnesses, repeated replacements needed, and starter engagement issues following jump-starts.
Owners emphasize the danger: vehicles losing power in heavy traffic with semi trucks behind them, on bridges with no shoulders, approaching intersections. Several near-miss accidents and one transmission failure at 65 mph in LA traffic are documented. The throttle body problem is known enough that aftermarket parts exist and dealers report 2-month backorders for replacements. No recall has been issued for the full powertrain issue across all transmission types.
Same Ford Fusion powertrain reports on nearby years: 2009 · 2010 · 2012 · 2013 · 2014
Failure modes owners describe
Throttle body failure causing power loss
Electronic throttle body malfunction causing sudden loss of engine power and throttle response. Vehicle enters limp mode with engine running at idle RPM only. Engine light and wrench light illuminate. Problem resolves temporarily after restart, though the diagnostic code clears with shutdown—preventing permanent fix. Occurs at various speeds (5 mph to 75 mph) and frequently in traffic, creating serious safety hazard.
When: Reported from 2010-2013 model years; failures documented between 19,650 and 165,000 miles; no clear mileage pattern
Symptoms owners cite: Sudden loss of throttle response despite pressing accelerator; Engine continues running but no power transfer to wheels; Vehicle slows dramatically or comes to near stop in traffic; Engine and wrench warning lights illuminate; Engine idles roughly at 1000-2500 RPM range; Problem clears after engine restart; RPM surging and dropping erratically
Codes mentioned: P2111, P2112, D42, P0455, P0457
Repairs/costs cited: Throttle body replacement costs $388–$771 at dealership; aftermarket part installed successfully by owner in ~10 minutes; replacement part noted on 2-month backorder with 6,534 units pending; parts unavailable in USA during 2013
Recalls/TSBs owners mention: Ford TSB/Customer Satisfaction Program 13N03 applies to automatic transmissions only, not manual transmissions; some dealers report cleaning and spraying throttle body as initial attempt; NHTSA opened investigation October 2012 but did not mandate full recall; Ford claimed no customer warranty coverage until powertrain warranty expired
Transmission power loss and shift failures
Automatic transmission loses ability to move vehicle forward or backward, often after preliminary jerking or surging. Vehicle may enter limp mode or stay in idle. In one case, transmission internally disintegrated at highway speed. Rarely, vehicle slips out of park while parked and running. Shift quality deteriorates over time with lurching and harsh engagements.
When: Failures from new vehicle condition (300 miles, 2013 models) through 165,000 miles; one case at 3 years old with ~26,000 miles; transmission internal failure documented at high speed
Symptoms owners cite: Loss of forward or reverse drive capability despite engine running; Vehicle lurches or jerks when shifting into gear; Harsh, abrupt gear engagement (described as 'slamming' into drive); Transmission shifts feel like driving over washboard; High RPM at lower speeds; Engine revs but vehicle does not accelerate; Vehicle slips out of park unexpectedly while running; Wrench light illuminates; Transmission feels sluggish or hesitant to shift
Codes mentioned: No codes reported in most cases, Transmission internal failure evident on technician inspection only
Repairs/costs cited: Transmission rebuild or complete replacement required in one case; cost estimated >$4,000 for full PTU removal and transfer case installation; one vehicle had transmission 'disintegrate internally' requiring rebuild or wholesale replacement; most failures outside factory warranty period
Recalls/TSBs owners mention: No recalls noted; no customer satisfaction programs mentioned for transmission failures; dealers unable to duplicate problem in many cases; some dealers claim transmission checks out fine despite owner reports
Transmission jerking and harsh shifts from cold/low-speed operation
Transmission exhibits rough, harsh engagement and jerking during cold starts and stop-and-go driving. Problem manifests as vehicle 'jumping' into gear, especially noticeable during acceleration from stops and lower-speed maneuvering. Occurs frequently enough to concern owners about failure progression.
When: From 300 miles (new vehicle); ongoing throughout ownership; exacerbated in heavy traffic and after highway driving followed by lower-speed operation
Symptoms owners cite: Harsh jerking when accelerating from stop; Transmission engagement feels abrupt and violent; Vehicle lurches forward unexpectedly; Rough shifting sensation comparable to washboard road; Problem worse in cold start conditions; Occurs during stop-and-go traffic; RPM surges before shift engagement
Repairs/costs cited: No repairs documented; dealers claim no codes produced, no problem found
Recalls/TSBs owners mention: Ford dealers claim no knowledge of prior transmission problems; no recalls or TSBs mentioned
Power loss/stalling in manual transmission vehicles
Six-speed manual transmission vehicles experience throttle body failure manifesting as sudden loss of power and stalling during acceleration or highway driving. Engine runs but will not accelerate past idle. Vehicle may lurch forward momentarily before losing all power. Recovery only by restart.
When: Reported in 6-speed manual transmission 2011 Fusions; failure at 87,500 miles; failures recurring despite throttle body replacement
Symptoms owners cite: Speed pulsing up and down by ~2 mph in cruise control; Idle surging up and down; Engine acceleration limited to 900 RPM regardless of pedal pressure; Sudden loss of all power during acceleration; No response to floor-board acceleration attempts; Wrench and engine lights illuminate; Lurching and sluggish performance 1 second before complete power loss; Vehicle stalls in traffic with no warning
Codes mentioned: P2111
Repairs/costs cited: Manual transmission owners note Ford Customer Satisfaction Program 13N03 does not cover manual transmissions; owner replaced throttle body themselves to avoid dealer cost; replacement may only be temporary fix
Recalls/TSBs owners mention: Customer Satisfaction Program 13N03 explicitly excludes manual transmissions; NHTSA investigation did not result in recall for manual transmission vehicles
PTU (power transfer unit) failure
Transfer case/PTU failure in AWD vehicles causing violent shaking and inability to drive above minimal speeds. One new owner (165,000 miles accumulated) experienced violent shake on highway shortly after vehicle returned from garage.
When: At 165,000 miles
Symptoms owners cite: Violent shaking at speeds above 15 mph; Vehicle cannot maintain highway speeds; Severe vibration throughout vehicle
Repairs/costs cited: Full PTU removal and transfer case installation required; estimated cost >$4,000; no warranty coverage; owner unable to afford repair and vehicle remains non-functional
Battery and electrical system failures
Battery acid accumulation on positive terminal eating through wiring harness; battery failures repeating (three batteries needed within vehicle lifespan documented); starter engagement issues; possible correlation to throttle and transmission electronic control failures.
When: First battery failure at 36,805 miles (January 2014); second battery failure at ~40,000 miles; continued acid accumulation after replacements
Symptoms owners cite: Excessive battery acid on positive terminal; Acid eating through wiring harness; Battery acid accumulation recurring around harness screws; Flywheel teeth missing after battery failure and jump-start; Starter staying engaged after engine starts; Difficult engine cranking (6-7 seconds to start vs. normal)
Repairs/costs cited: Battery and wiring harness replacement (first incident) ~$1,700 for flywheel and starter replacement; Ford covered majority, owner paid ~$450 deductible; third battery replacement needed by 2017 (vehicle ownership pattern unclear)
Recalls/TSBs owners mention: Ford approved partial coverage of flywheel/starter repair after case opening; no mention of TSB or recall for battery acid issue
Engine cover detachment
Engine cover fell off vehicle while driving at highway speed, creating safety hazard. Cause not investigated; replaced with new unit but indicates potential manufacturing or assembly defect.
When: March 22, 2013 (at highway speeds)
Symptoms owners cite: Engine cover fell off mid-drive at highway speed
Repairs/costs cited: Engine cover replaced with new unit
Hybrid mode operational failures (hybrid models)
2011 Ford Fusion hybrid operating almost exclusively in gasoline mode despite being designed for gas/EV partnership. Jerking and hesitation when transitioning between power modes. Throttle lag worsening progressively over one year. Vehicle not responding to throttle application in timely manner, creating safety risk.
When: Progressive issue over 12-month period; vehicle with 165,000 miles noted in complaint
Symptoms owners cite: Throttle lag increasing over time; Vehicle operating in gas mode only despite hybrid design; Jerking/hesitation when transitioning between gas and EV modes; Poor acceleration response when needed; Worsening fuel economy; May leave driver at risk in traffic due to delayed acceleration response
Repairs/costs cited: Ford service bulletin issued but forbids service to vehicle; no solution available for at least 4 months per bulletin
Recalls/TSBs owners mention: Ford issued service bulletin acknowledging issue for at least 4 months but directed dealers not to perform service; no repair timeline or solution provided
Acceleration pedal sticking/failure to respond
Accelerator pedal becomes unresponsive or stuck, preventing driver from controlling vehicle speed. In one incident, accelerator stuck in full-down position causing unintended acceleration uphill during heavy traffic.
When: May 16, 2013 noted incident; another complaint May 2013
Symptoms owners cite: Accelerator pedal does not respond to foot pressure; Accelerator pedal stuck in floored position; RPMs surge without pedal input; Vehicle accelerates to ~65 mph unintentionally uphill; Pedal requires two-foot technique (left foot braking, right foot tapping) to control
Synthesized from 232 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 1 most recent
I was driving 40 - 45 MPH and suddenly I lost acceleration and the car stalled. It seemed to have fell out of gear as the car did not 'die', there was no longer any response in the gas pedal. I utilized what remaining speed I had to navigate to a safe place to pull off the road. I turned off the car and turned it on again and could drive again. This happened 2 more times on the way home (total…
Had powertrain trouble with your 2011 Ford Fusion?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the powertrain problem on the 2011 Ford Fusion?
It's a documented issue but not catastrophic. 232 complaints have been filed. Repairs average $2,500 and most owners catch it before it causes a breakdown.
At what mileage does the powertrain typically fail?
Across the 209 complaints that reported odometer mileage, most powertrain failures cluster between 37,000 and 63,028 miles, with the median around 45,554. A quarter of owners report trouble before 37,000; a quarter make it past 63,028. Maintenance history matters more than the odometer alone — this is the reported failure window, not a guarantee.
What does it cost to fix?
Independent shops typically charge around $2,500 for powertrain repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to powertrain?
No active recalls currently cover powertrain issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2011/Ford/Fusion.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.