
Electronic Stability Control (ESC)
Electronic Stability Control (ESC) may enhance your vehicle’s directional
stability during adverse maneuvers, for example when cornering severely
or avoiding objects in the roadway. ESC operates by applying brakes to
one or more of the wheels individually and, if necessary, reducing engine
power if the system detects that the vehicle is about to skid or slide
laterally.
During Electronic Stability Control events the “sliding car” icon
in the
instrument cluster will flash.
Certain adverse driving maneuvers may activate the Electronic Stability
Control system, which include but are not limited to:
•Taking a turn too fast
•Maneuvering quickly to avoid an accident, pedestrian or obstacle
•Driving over a patch of ice or other slippery surfaces
•Changing lanes on a snow-rutted road
•Entering a snow-free road from a snow-covered side street, or vice
versa
•Entering a paved road from a gravel road, or vice versa
•Cornering while towing a heavily loaded trailer (refer toTrailer
towingin theTires, Wheels and Loadingchapter).
The Electronic Stability Control system may be deactivated in certain
situations. See theSwitching Off AdvanceTracwith RSCsection
following.
Roll Stability Control™ (RSC)
Roll Stability Control (RSC) may help to maintain roll stability of the
vehicle during adverse maneuvers. RSC operates by detecting the
vehicle’s roll motion and the rate at which it changes and by applying the
brakes to one or more wheels individually.
During an event that activates the Roll Stability Control™ (RSC) the
“sliding car” icon
in the instrument cluster will flash.
Certain adverse driving maneuvers may activate the Roll Stability Control
system, which include:
•Emergency lane-change
•Taking a turn too fast
•Quick maneuvering to avoid an accident, pedestrian or obstacle
2009 Flex(471)
Owners Guide (post-2002-fmt)
USA(fus)
Driving
260

•The over drive cancel and grade
assist lamp in the instrument
cluster is illuminated.
2. Grade Assist
•Improves driving experience in hilly terrain or mountainous areas by
providing additional grade (engine) braking and extends lower gear
operation on uphill climbs.
•Provides additional engine braking through the automatic transmission
shift strategy which reacts to vehicle inputs (vehicle acceleration,
accelerator pedal, brake pedal and vehicle speed).
•Allows the transmission to select gears that will provide the desired
engine braking based on the vehicle inputs mentioned above. This will
increase engine RPM during engine braking.
Overdrive Cancel with Grade Assist is designed to provide optimal gear
selection in hilly terrain or mountainous areas. It is recommended that
you return to O/D (overdrive mode) on flat terrain to provide the best
fuel economy and transmission function.
To return to O/D (overdrive mode), press the transmission control switch
again.
•The overdrive cancel and grade assist lamp in the instrument cluster
will not be illuminated.
•The transmission will operate in gears one through six.
O/D (overdrive mode) is automatically returned each time the key is
turned off.
L (Low)
•Provides maximum engine braking.
•Will downshift to the lowest available gear for the current vehicle
speed; allows for first gear when vehicle reaches slower speeds.
REVERSE SENSING SYSTEM
The Reverse Sensing System (RSS) sounds a tone to warn the driver of
obstacles near the rear bumper when the R (Reverse) is selected and the
vehicle is moving at speeds less than 3 mph (5 km/h). The system is not
effective at speeds above 3 mph (5 km/h) and may not detect certain
angular or moving objects.
2009 Flex(471)
Owners Guide (post-2002-fmt)
USA(fus)
Driving
266

Fuse/Relay
LocationFuse Amp
RatingProtected Circuits
8 10A Low beam headlamps (right)
9 15A Interior lights, Cargo lamps
10 15A Backlighting, Puddle lamps
11 10A All wheel drive
12 7.5A Not used (spare)
13 5A Keypad, Mirror switch, Memory
module, DSM logic, Adjustable
pedals
14 10A Power liftgate module, CID, MGM
15 10A Climate control head
16 15A EFP, Navigation Screen
17 20A All power lock motor feeds,
Liftgate release
18 20A 2nd row power seat, Front heated
seats
19 25A Moon roof
20 15A OBDII connector, Memory seat
21 15A Fog lamps
22 15A Park lamps, License lamps
23 15A High beam headlamps
24 20A Horn relay
25 10A Demand lamps/Interior lamps,
Power fold seat (2nd row)
26 10A Instrument panel cluster
27 20A Ignition Switch
28 5A Radio, Radio start signal
29 5A Instrument panel cluster
30 5A Overdrive cancel and grade assist
switch
31 10A Not used (spare)
32 10A Restraint control module
33 10A Battery charge relay
2009 Flex(471)
Owners Guide (post-2002-fmt)
USA(fus)
Roadside Emergencies
283

INSTRUMENT PANEL/INTERIOR TRIM AND CLUSTER LENS
Clean the instrument panel, interior trim areas and cluster lens with a
clean and damp white cotton cloth, then with a clean and dry white
cotton cloth; you may also use Motorcraft Dash & Vinyl Cleaner
(ZC-38-A) on the instrument panel and interior trim areas.
•Avoid cleaners or polishes that increase the gloss of the upper portion
of the instrument panel. The dull finish in this area helps protect the
driver from undesirable windshield reflection.
•Be certain to wash or wipe your hands clean if you have been in
contact with certain products such as insect repellent and suntan
lotion in order to avoid possible damage to the interior painted
surfaces.
•Do not use household or glass cleaners as these may damage the
finish of the instrument panel, interior trim and cluster lens.
WARNING:Do not use chemical solvents or strong detergents
when cleaning the steering wheel or instrument panel to avoid
contamination of the airbag system.
If a staining liquid like coffee/juice has been spilled on the instrument
panel or on interior trim surfaces, clean as follows:
1. Wipe up spilled liquid using a clean, white, cotton cloth.
2. Apply Motorcraft Deluxe Leather and Vinyl Cleaner (ZC-11-A) [In
Canada use Motorcraft Multi-Purpose Cleaner (CXC-101)] to the wiped
area and spread around evenly.
3. Apply more Motorcraft cleaner to a clean, white, cotton cloth and
press the cloth onto the soiled area–allow this to set at room
temperature for 30 minutes.
4. Remove the soaked cloth, and if it is not soiled badly, use this cloth to
clean the area by using a rubbing motion for 60 seconds.
5. Following this, wipe area dry with a clean, white, cotton cloth.
INTERIOR
For fabric, carpets, cloth seats, safety belts and seats equipped with side
airbags:
•Remove dust and loose dirt with a vacuum cleaner.
•Remove light stains and soil with Motorcraft Professional Strength
Carpet & Upholstery Cleaner (ZC-54).
2009 Flex(471)
Owners Guide (post-2002-fmt)
USA(fus)
Cleaning
326

Fuel quality
If you are experiencing starting, rough idle or hesitation driveability
problems, try a different brand of unleaded gasoline. “Premium”
unleaded gasoline is not recommended for vehicles designed to use
“Regular” unleaded gasoline because it may cause these problems to
become more pronounced. If the problems persist, see your authorized
dealer.
Do not add aftermarket fuel additive products to your fuel tank. It
should not be necessary to add any aftermarket products to your fuel
tank if you continue to use high quality fuel of the recommended octane
rating. These products have not been approved for your engine and
could cause damage to the fuel system. Repairs to correct the effects of
using an aftermarket product in your fuel may not be covered by your
warranty.
Many of the world’s automakers approved the World-Wide Fuel Charter
that recommends gasoline specifications to provide improved
performance and emission control system protection for your vehicle.
Gasolines that meet the World-Wide Fuel Charter should be used when
available. Ask your fuel supplier about gasolines that meet the
World-Wide Fuel Charter.
Cleaner air
Ford endorses the use of reformulated “cleaner-burning” gasolines to
improve air quality, per the recommendations in theChoosing the right
fuelsection.
Running out of fuel
Avoid running out of fuel because this situation may have an adverse
effect on powertrain components.
If you have run out of fuel:
•You may need to cycle the ignition from off to on several times after
refueling to allow the fuel system to pump the fuel from the tank to
the engine. On restarting, cranking time will take a few seconds longer
than normal.
•Normally, adding 1 gallon (3.8L) of fuel is enough to restart the
engine. If the vehicle is out of fuel and on a steep grade, more than
1 gallon (3.8L) may be required.
•TheService engine soon
indicator may come on. For more
information on the “service engine soon” indicator, refer toWarning
lights and chimesin theInstrument Clusterchapter.
2009 Flex(471)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
349

Inspection/maintenance (I/M)
testing ........................................356
Instrument panel
cleaning ...................................326
cluster ........................................10
lighting up panel and
interior .......................................78
J
Jump-starting your vehicle ......307
K
Keyless entry system ...............140
autolock ...................................127
keypad .....................................140
locking and unlocking doors ..141
programming entry code .......140
Keys ...................................125, 143
positions of the ignition .........250
L
Lamps
autolamp system .......................76
bulb replacement
specifications chart ..................82
daytime running light ...............78
fog lamps ...................................77
headlamps .................................76
headlamps, flash to pass ..........77
instrument panel, dimming .....78
interior lamps .....................81, 83
replacing bulbs .........................83
LATCH anchors .........................205
Liftgate ..............................119, 134
Lights, warning and indicator ....10
anti-lock brakes (ABS) ..........256
Load limits .................................239Locks
autolock ...................................127
childproof ................................131
doors ........................................127
Lubricant specifications ...........362
Lug nuts ....................................306
Luggage rack .............................124
Lumbar support, seats .....152, 155
M
Message center .................110–111
english/metric button .............114
system check button ..............113
warning messages ...................116
Mirrors ...................................98–99
automatic dimming rearview
mirror ........................................99
heated ................................70, 100
programmable memory ..........135
side view mirrors (power) .......99
Moon roof ..................................106
Motorcraft parts ........328, 344, 361
N
Navigation system .......................63
O
Octane rating ............................348
Oil (see Engine oil) ..................333
Overdrive ...................................264
P
Parking brake ............................256
Parts (see Motorcraft parts) ....361
2009 Flex(471)
Owners Guide (post-2002-fmt)
USA(fus)
Index
372