Page 277 of 374

Maintenance and Modifications
The suspension and steering systems on your vehicle have been designed
and tested to provide predictable performance whether loaded or empty
and durable load carrying capability. For this reason, Ford Motor
Company strongly recommends that you do not make modifications such
as adding or removing parts (such as lift kits or stabilizer bars) or by
using replacement parts not equivalent to the original factory equipment.
Any modifications to a vehicle that raise the center of gravity can make
it more likely the vehicle will rollover as a result of a loss of control.
Ford Motor Company recommends that caution be used with any vehicle
equipped with a high load or device (such as ladder or luggage racks).
Failure to maintain your vehicle properly may void the warranty, increase
your repair cost, reduce vehicle performance and operational capabilities
and adversely affect driver and passenger safety. Frequent inspection of
vehicle chassis components is recommended if the vehicle is subjected to
heavy off-highway usage.
DRIVING THROUGH WATER
If driving through deep or standing
water is unavoidable, proceed very
slowly especially when the depth is
not known. Never drive through
water that is higher than the bottom
of the wheel rims (for cars) or the
bottom of the hubs (for trucks).
When driving through water, traction or brake capability may be limited.
Also, water may enter your engine’s air intake and severely damage your
engine or your vehicle may stall.Driving through deep water where
the transmission vent tube is submerged may allow water into the
transmission and cause internal transmission damage.
Once through the water, always dry the brakes by moving your
vehicle slowly while applying light pressure on the brake pedal.
Wet brakes do not stop the vehicle as quickly as dry brakes.
2009 Flex(471)
Owners Guide (post-2002-fmt)
USA(fus)
Driving
277
Page 357 of 374

POWER STEERING FLUID
Refer to thescheduled maintenance informationfor the service
interval schedules.
1. Start the engine and let it run
until it reaches normal operating
temperature (the engine coolant
temperature gauge indicator will be
near the center of the normal area
between H and C).
2. While the engine idles, turn the
steering wheel left and right several
times.
3. Turn the engine off.
4. Check the fluid level in the reservoir. It should be between the MIN
and MAX lines. Do not add fluid if the level is in this range.
5. If the fluid is low, add fluid in small amounts, continuously checking
the level until it reaches the range between the MIN and MAX lines. Be
sure to put the cap back on the reservoir. Refer toMaintenance
product specifications and capacitiesin this chapter for the proper
fluid type.
BRAKE FLUID
The fluid level will drop slowly as
the brakes wear, and will rise when
the brake components are replaced.
Fluid levels between the “MIN” and
“MAX” lines are within the normal
operating range; there is no need to
add fluid. If the fluid levels are
outside of the normal operating
range the performance of the
system could be compromised; seek
service from your authorized dealer
immediately.
2009 Flex(471)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
357
Page 369 of 374

A
Accessory delay ..........................98
AdvanceTrac ..............................257
Air cleaner filter ...............359–361
Air conditioning ..............64, 67, 70
manual heating and air
conditioning system .................64
Airbag supplemental restraint
system ................181–182, 190, 192
and child safety seats ............183
description ..............182, 190, 192
disposal ....................................196
driver airbag ............184, 191, 194
indicator light .................190, 195
operation .................184, 191, 194
passenger airbag .....184, 191, 194
side airbag ...............................190
All Wheel Drive (AWD),
driving off road .........................271
Ambient mood/lighting ...............81
AM/FM .........................................16
Antifreeze
(see Engine coolant) ................339
Anti-lock brake system
(see Brakes) ..............................255
Anti-theft system ..............142, 145
arming the system ..................145
disarming a triggered
system .....................................147
Audio system (see Radio) .........16
Automatic transaxle
fluid, refill capacities ..............362
fluid, specification ..................362
Automatic transmission
driving an automatic
overdrive .................................264
fluid, adding ............................358fluid, checking ........................358
Auxiliary input jack (Line in) ....25
B
Battery .......................................336
acid, treating emergencies .....336
jumping a disabled battery ....307
maintenance-free ....................336
replacement, specifications ...361
servicing ..................................336
Belt-Minder.............................177
Booster seats .............................212
Brakes ........................................255
anti-lock ...................................255
anti-lock brake system (ABS)
warning light ...........................256
fluid, checking and adding ....357
fluid, refill capacities ..............362
fluid, specifications .................362
lubricant specifications ..........362
parking ....................................256
shift interlock ..........................262
Bulbs ............................................82
C
Capacities for refilling fluids ....362
Cargo net ...................................123
CD ................................................16
Cell phone use ..............................7
Child safety seats ......................201
in front seat ............................202
in rear seat ..............................202
LATCH .....................................205
recommendations ...................199
tether anchorage hardware ...207
Child safety seats - booster
seats ...........................................212
2009 Flex(471)
Owners Guide (post-2002-fmt)
USA(fus)
Index
369
Page 372 of 374

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
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