brake FORD EXPLORER 2012 5.G Service Manual

•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).
Roll Stability Control™ (RSC)
Roll Stability Control™ (RSC) may help to maintain roll stability of the
vehicle during adverse maneuvers. The RSCsystem 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 RSCsystem, the stability control
light in the instrument cluster will flash.
Certain adverse driving maneuvers may activate the RSCsystem, which
include:
•Emergency lane-change
•Taking a turn too fast
•Quick maneuvering to avoid an accident, pedestrian or obstacle
Curve Control
Curve control may enhance your vehicle’s ability to follow the road
during adverse maneuvers, for example when cornering severely or
avoiding objects in the roadway. Curve Control operates by reducing
engine power and, if necessary, applying brakes to one or more of the
wheels individually. During Curve Control events, the stability control
light in the instrument cluster will flash and the brake lamps may
illuminate.
Certain adverse driving maneuvers may activate the Curve control
system, which include but are not limited to:
•Taking a turn too fast
•Maneuvering quickly to avoid an accident, pedestrian or obstacle
•Cornering while towing a heavily loaded trailer (seeTrailer towingin
theTires, Wheels and Loadingchapter). The Curve Control system
may be deactivated in certain terrain management modes. See
Terrain managementlater in this chapter.
Turning traction control off
If the vehicle is stuck in snow, mud or sand, and seems to lose engine
power, switching off traction control in the AdvanceTracwith RSC
system may be beneficial because the wheels are allowed to spin. This
will restore full engine power and will enhance momentum through the
obstacle.
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To turn off traction control in the AdvanceTracsystem, select traction
control off in the message center. Full features of the AdvanceTrac
system can be restored by selecting it on again or by turning off and
restarting the engine.
If you switch off traction control in
the AdvanceTracwith RSC
system, the stability control off light
will illuminate steadily. Selecting
traction control on again will turn
off the stability control off light.
Note:If the system cannot be turned off, refer toMyKeyin theLocks
and Securitychapter for more information.
Note:In R (Reverse), ABS and the engine traction control and brake
traction control features will continue to function; however, ESC, RSC
and Curve Control are disabled.
Note:Curve Control can be disabled with the terrain management
control (if equipped). SeeTerrain Managementlater in this chapter.
AdvanceTracFeatures
Operation ModeStability
control
light
(
)Message
center displayTCS
Default at
start-upSystem
initializationTurns on
at
start-upNone Enabled
Selected onceTraction
control offOnTRACTION
CONTROL OFFDisabled
Selected again
after deactivationAdvanceTrac
fully enabledOffTRACTION
CONTROL ONEnabled
Note:The ESC/RSC/Curve Control systems cannot be turned on or
off through the message center.
Trailer sway control
When properly equipped, trailer sway control will use the vehicle’s
AdvanceTracwith RSCsystem to detect and help reduce trailer sway
by applying brake force at individual wheels and, if necessary, by
reducing engine power. Trailer sway control is only enabled above
40 mph (64 km/h).
OFF
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Hill descent control can maintain vehicle speeds on downhill grades
between 3 mph (5 km/h) and 20 mph (32 km/h). Above 20 mph
(32 km/h), the system remains armed, but descent speed cannot be set
or maintained.
WARNING:Hill descent control does not provide hill hold at
zero mph (0 km/h). When stopped, the parking brake must be
applied and/or the vehicle must be placed in P (Park) or it may roll
away.
Hill descent control requires a cooling down interval after a period of
sustained use. The amount of time that the feature can remain active
before cooling varies with conditions. The system will provide a warning
in the message center and a chime will sound when the system is about
to disengage for cooling. At this time, manually apply the brakes as
needed to maintain descent speed.
Enabling hill descent control and setting the descent speed
1. Press and release the hill descent
button located in the center of the
terrain management control. A light
in the control will illuminate and
chime will sound when this feature
is activated.
2. To increase descent speed, press the accelerator pedal until the
desired speed is reached. To decrease descent speed, press the brake
pedal until the desired speed is reached.
Whether accelerating or decelerating, once the desired descent speed is
reached, remove your feet from the pedals and the chosen vehicle speed
will be maintained.
Note:Noise from the ABS pump motor may be observed during hill
descent control operation. This is a normal characteristic of the ABS and
should be no reason for concern.
Hill descent modes
•At speeds below 20 mph (32 km/h): When the HDC button is pressed
and HDC is active, HILL DESCENT CONTROL ACTIVE will appear in
the message center for several seconds.
•At speeds below 20 mph (32 km/h): When the HDC button is pressed
and conditions are not correct for hill descent activation, the HDC
system will be enabled, the light on the button will be on solid and
HILL DESCENT CONTROL READY will be displayed in the message
center for several seconds.
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WARNING:Loaded vehicles, with a higher center of gravity,
may handle differently than unloaded vehicles. Do not overload
your vehicle and use extra precautions, such as driving at slower
speeds, avoiding abrupt steering changes and allowing for increased
stopping distance, when driving a heavily loaded vehicle. Over-loading
or loading the vehicle improperly can deteriorate handling capability
and contribute to loss of vehicle control and vehicle rollover.
BRAKE-SHIFT INTERLOCK
This vehicle is equipped with a brake-shift interlock (BSI) feature that
prevents the gearshift lever from being moved from P (Park) when the
ignition is in the on position unless the brake pedal is pressed.
If you cannot move the gearshift lever out of P (Park) with ignition in
the on position and the brake pedal pressed, it is possible that a fuse has
blown or the vehicle’s brake lamps are not operating properly. Refer to
Fuses and relaysin theRoadside Emergencieschapter.
If the fuse is not blown and the brake lamps are working properly, the
following procedure will allow you to move the gearshift lever from P
(Park):
1. Apply the parking brake and turn
the ignition off.
2. Open the small forward storage
compartment, and remove the
rubber protective cover.
3. Using a screwdriver (or similar
tool), carefully pry off and remove
the BSI access cover.
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4. Locate the brake shift interlock
lever in front of the shifter
assembly.
5. Apply the brake pedal. Gently
pull and hold the brake shift
interlock lever while pulling the
gearshift lever out of the P (Park)
position and into the N (Neutral)
position.
6. Install the BSI access cover.
7. Apply the brake pedal, start the vehicle, and release the parking
brake.
See your authorized dealer as soon as possible if this procedure
is used.
WARNING:Do not drive your vehicle until you verify that the
brakelamps are working.
WARNING:When doing this procedure, you will be taking the
vehicle out of park which means the vehicle can roll freely. To
avoid unwanted vehicle movement, always fully set the parking brake
prior to doing this procedure. Use wheel chocks if appropriate.
WARNING:If the parking brake is fully released, but the brake
warning lamp remains illuminated, the brakes may not be
working properly. See your authorized dealer.
AUTOMATIC TRANSMISSION OPERATION
Automatic transmission adaptive learning
Your transmission is equipped with an adaptive learning strategy found in
the vehicle computer. This feature is designed to increase durability and
provide consistent shift feel over the life of the vehicle. A new vehicle or
transmission may have firm and/or soft shifts. This operation is
considered normal and will not affect function or durability of the
transmission. Over time, the adaptive learning process will fully update
transmission operation. Additionally, whenever the battery is
disconnected or a new battery installed, the strategy must be relearned.
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Understanding the gearshift positions of the 6–speed automatic
transmission
Your vehicle has been designed to improve fuel economy by reducing
fuel usage while coasting or decelerating. When you take your foot off
the accelerator pedal and the vehicle begins to slow down, the torque
converter clutch locks up and aggressively shuts off fuel flow to the
engine while decelerating. This fuel economy benefit may be perceived
as a light to medium braking sensation when removing your foot from
the accelerator pedal.
P (Park)
This position locks the transmission
and prevents the front wheels from
turning.
To put your vehicle in gear:
•Press the brake pedal
•Move the gearshift lever into the
desired gear
To put your vehicle in P (Park):
•Come to a complete stop
•Move the gearshift lever and securely latch it in P (Park)
WARNING:Always set the parking brake fully and make sure
the gearshift is latched in P (Park). Turn the ignition to the off
position and remove the key whenever you leave your vehicle.
R (Reverse)
With the gearshift lever in R (Reverse), the vehicle will move backward.
Always come to a complete stop before shifting into and out of R
(Reverse).
N (Neutral)
With the gearshift lever in N (Neutral), the vehicle can be started and is
free to roll. Hold the brake pedal down while in this position.
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D (Drive) with Overdrive
The normal driving position for the best fuel economy. Transmission
operates in gears one through six.
The automatic transmission shift strategy has the ability to detect hilly
terrain or mountainous areas and will provide a limited amount of grade
assist features automatically. Refer to D (Drive) with Grade assist or
SelectShift for more information.
D (Drive) with Tow on
The tow feature improves transmission operation when towing a trailer
or a heavy load. All transmission gear ranges are available when using
tow.
Tow can be activated by pressing theTOWswitch located on the
instrument panel by the headlamp control. TheTOW/HAULmessage
will illuminate in the instrument cluster.
The tow feature delays upshifts to reduce frequency of transmission
shifting. Tow also provides engine braking in all forward gears when the
transmission is in the D (Overdrive) position. This engine braking will
slow the vehicle and assist the driver in controlling the vehicle when
descending a grade. Depending on driving conditions and load
conditions, the transmission may downshift, slow the vehicle and control
the vehicle speed when descending a hill, without the accelerator pedal
being pressed. The amount of downshift braking provided will vary based
upon the amount the brake pedal is depressed.
To deactivate the tow feature and return to normal driving mode, press
theTOWbutton. The tow light will no longer be illuminated.
When you shut-off and restart the engine, the transmission will
automatically return to normal D (Overdrive) mode (tow off).
WARNING:Do not use the tow feature when driving in icy or
slippery conditions as the increased engine braking can cause
the rear wheels to slide and the vehicle to swing around with the
possible loss of vehicle control.
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D (Drive) with Grade Assist
Pressing the transmission control switch on the side of the gearshift
lever activates grade assist and cancels overdrive.
Grade assist:
•Provides additional grade
(engine) braking and extends
lower gear operation on uphill
climbs for hilly terrain or
mountainous areas.
•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.
•The grade assist lamp in the
instrument cluster is illuminated.
Grade assist is designed to aid the
driver with optimal gear selection in
hilly terrain or mountainous areas
but is not intended for normal operation. 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 normal D (Drive) position (with O/D), press the
transmission control switch again.
•The grade assist lamp in the instrument cluster will not be illuminated.
•The transmission will operate in gears one through six.
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.
•Is not intended for use under extended or normal driving conditions
and results in lower fuel economy.
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Hill start assist (HSA)
The hill start assist feature makes it easier to pull away when the vehicle
is on a slope without the need to use the parking brake. When the hill
start assist feature is active, the vehicle will remain stationary on the
slope for up to two seconds after you release the brake pedal. During
this time, you have time to move your foot from the brake to the
accelerator pedal and pull away. The brakes are released automatically
once the engine has developed sufficient drive to prevent the vehicle
from rolling down the slope. This is an advantage when pulling away on a
slope; for example from a car park ramp, traffic lights or when reversing
uphill into a parking space.
WARNING:The hill start assist feature does not replace the
parking brake. When you leave the vehicle, always apply the
parking brake and select first or reverse gear.
Using hill start assist
The hill start assist feature is activated automatically when the vehicle is
stopped on a slope greater than five degrees. The hill start assist feature
operates with the vehicle facing downhill if reverse gear is selected. The
hill start assist feature will not operate if the parking brake is activated.
WARNING:You must remain in the vehicle once you have
activated the hill start assist feature.
Activating hill start assist
1. Press the brake pedal to bring the vehicle to a complete standstill.
Keep the brake pedal pressed.
2. If the sensors detect that the vehicle is on a slope, the hill start assist
feature will be activated automatically.
3. When you remove your foot from the brake pedal, the vehicle will
remain on the slope without rolling away for approximately up to two
seconds. This hold time will automatically be extended if you are in the
process of driving off.
4. Drive off in the normal manner. The brakes will be released
automatically.
WARNING:If the engine is revved excessively, or if a
malfunction is detected when the hill start assist feature is
active, the hill start assist feature will be deactivated.
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Night time and dark area use
At night time or in dark areas, the camera system relies on the reverse
lamp lighting to produce an image. Therefore, it is necessary that both
reverse lamps are operating in order to get a clear image in the dark. If
either of the lamps are not operating, stop using the camera system, at
least in the dark, until the lamp(s) are replaced and functioning.
Servicing
•If the image comes on while the vehicle is not in R (Reverse), have
the system inspected by your authorized dealer.
•If the image is not clear, check if anything is covering the lens such as
dirt, mud, ice, snow, etc. If the image is still not clear after cleaning,
have your system inspected by your authorized dealer.
COLLISION WARNING SYSTEM (IF EQUIPPED)
The collision warning with brake support, is designed to alert the driver
of certain collision risks with a red warning light located above the
dashboard and an audible warning chime. The brake support assists the
driver in reducing the collision speed, by pre-charging the brakes.
WARNING:This system is designed to be a supplementary
driving aid. It is not intended to replace the driver’s attention,
and judgment, or the need to apply the brakes. This system does NOT
activate the brakes automatically. Failure to press the brake pedal to
activate the brakes may result in a collision.
WARNING:The collision warning system with brake support
cannot help prevent all collisions. Do not rely on this system to
replace driver judgment and the need to maintain distance and speed.
Note:The collision warning with brake support will not detect, warn, or
respond to potential collisions with vehicles to the rear or sides of the
vehicle.
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