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2011 Ford Flex: engine and transmission complaints

ELEVATED COMPLAINT SIGNAL
37%
51 of 144 relevant owner complaints are about the engine, transmission or fuel system

37% of relevant owner complaints on the 2011 Ford Flex are about the engine, transmission or fuel system. That is elevated. Worth an independent inspection before you commit to one.

Better than 59% of the 1,230 model years we track (2010–2023).

NHTSA data checked September 13, 2026
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Drivetrain complaints
51
engine, transmission, fuel
Total complaints
144
this model year
Fires reported
1
owner-reported
Recall campaigns
2
5 crashes · 9 injuries

Complaints by component

STEERING57 · 40%
ENGINE25 · 17%
POWER TRAIN19 · 13%
UNKNOWN OR OTHER11 · 8%
ELECTRICAL SYSTEM9 · 6%
SERVICE BRAKES8 · 6%

The years either side

2010
44%
56 of 139
2011
37%
51 of 144
2012
27%
16 of 64
2013
18%
94 of 578
2014
33%
77 of 249
2015
30%
31 of 105
2016
17%
16 of 98
2017
8%
3 of 42
2018
6%
4 of 65
2019
4%
10 of 243
2020
no data
2021
no data
2022
no data
2023
no data

Manufacturers fix things mid-generation. A bad year next to a clean one is common; the fix usually arrived in between.

Cleaner alternatives

Same car, a better year

Other midsize SUVs with no elevated signal in 2011

The percentage is each model year's drivetrain complaint share. No elevated signal describes the model year, not any one car; a well-kept example of a flagged model can still be the right buy, and any of these still needs an inspection.

What owners reported

ELECTRONIC STABILITY CONTROL (ESC),ENGINE,FUEL/P07/16/20152 INJURED
UPON ACCELERATION, USUALLY FROM A COMPLETE STOP SUCH AS ACCELERATING FROM A STOP SIGN OR ON A GREEN LIGHT, IT FEELS AS THOUGH THE GEARS DO NO CATCH & THE CAR JERKS AND THE RPM'S RAISE BUT THE CAR STOPS ACCELERATING. WILL ALSO HAVE A "STUTTERING" OR "JERKING" WHILE AT A COMPLETE STOP WITH BREAK PEDAL BEING PRESSED DOW…
ENGINE AND ENGINE COOLING07/09/20121 INJURED
THERE WERE TWO OCCURRENCES. ON 7/5/12, THE FLEX WAS PARKED BUT STILL RUNNING, WE RAISED THE REAR DOOR/TAILGATE TO REMOVE ITEMS FROM THE FLEX. ONE OF MY 4 YEAR OLD DAUGHTERS STOOD NEAR THE BACK BUMPER AREA AND RECEIVED A BURN TO HER LEG FROM ONE OF THE EXHAUST PIPES CREATING A C SHAPE IMPRINT OF THE TAILPIPE OPENING. …
POWER TRAIN04/28/2026
Went to put car in reverse and it kept driving forward- no weird sound or anything. Proceeded to put the car in park and it was still moving forward. Transmission was stuck on drive.The shifter is disconnected from the transmission with no warning .Just looked and the transmission shifter bushing is disconnected. Also …

Three of 51 drivetrain complaints. The full report shows more, with quotes about the engine in the car you are looking at first.

Recall campaigns on this model year (2)

STEERING:ELECTRIC POWER ASSIST SYSTEM
Ford Motor Company (Ford) is recalling certain model year 2011-2012 Ford Fusion vehicles without a 3.5L engine and Lincoln MKZ hybrid electric vehicles, 2011 Mercury Mila…
AIR BAGS:FRONTAL
Ford Motor Company (Ford) is recalling certain model year 2009-2012 Ford Flex, 2008 and 2010-2012 Ford Taurus, 2008-2009 Ford Taurus X, 2008 Mercury Sable, 2009 and 2011 …

This does not say whether a particular car has an open, unrepaired recall. That depends on the VIN.

Before you buy a 2011 Ford Flex

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Experimental model-level information. This is not a vehicle inspection, vehicle-history report, financial advice or purchase recommendation. It describes patterns across a model year, not the condition of any individual vehicle.