2002 FORD WINDSTAR traction control

Anti-lock brake system (ABS)
On vehicles equipped with an anti-lock braking system (ABS), a noise
from the hydraulic pump motor and pulsation in the pedal may be
observed during ABS braking events. Pedal pulsation coupled with noise
while braking under panic conditions or on loose gravel, bumps, wet or
snowy roads is normal and indicates proper functioning of the vehicle's
anti-lock brake system. The ABS performs a self-check after you start
the engine and begin to drive away. A brief mechanical noise may be
heard during this test. This is normal. If a malfunction is found, the ABS
warning light will come on. If the vehicle has continuous vibration or
shudder in the steering wheel while braking, the vehicle should be
inspected by a qualified service technician.
The ABS operates by detecting the
onset of wheel lockup during brake
applications and compensates for
this tendency. The wheels are
prevented from locking even when
the brakes are firmly applied. The
accompanying illustration depicts
the advantage of an ABS equipped
vehicle (on bottom) to a non-ABS
equipped vehicle (on top) during hard braking with loss of front braking
traction.
Using ABS
²In an emergency or when maximum efficiency from the four-wheel
ABS is required, apply continuous force on the brake. The four wheel
ABS will be activated immediately, thus allowing you to retain full
steering control of your vehicle and, providing there is sufficient
space, will enable you to avoid obstacles and bring the vehicle to a
controlled stop.
²The anti-lock system does not decrease the time necessary to apply
the brakes or always reduce stopping distance. Always leave enough
room between your vehicle and the vehicle in front of you to stop.
²We recommend that you familiarize yourself with this braking
technique. However, avoid taking any unnecessary risks.
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Push the button on the end of the
parking brake and push the handle
down as far as possible to release
the brake. Driving with the parking
brake on will cause the brakes to
wear out quickly and reduce fuel
economy.
TRACTION CONTROLY(IF EQUIPPED)
Traction Controlyhelps the driver maintain the stability and steerability
of the vehicle. It is especially useful on slippery and/or hilly road
surfaces. The system operates by detecting and controlling wheel spin.
The system borrows many of the electronic and mechanical elements
already present in the anti-lock braking system (ABS).
Wheel-speed sensors allow excess front wheel spin to be detected by the
Traction Controlyportion of the ABS computer. The system limits front
wheel spin by automatically applying and releasing the front brakes in
conjunction with engine torque reductions. Engine torque reduction is
realized via the fully electronic spark and fuel injection systems. This
process is very sensitive to driving conditions and very fast acting. The
front wheels ªsearchº for optimum traction several times a second and
adjustments are made accordingly.
The Traction Controlysystem will assist you in making better use of
available traction on slippery surfaces. The system is a driver aid which
makes your vehicle easier to handle primarily on snow and ice covered
roads.
During Traction Controlyoperation, TRACTION CONTROL OK is
displayed on the message center (if equipped). You may hear an electric
motor type of sound coming from the engine compartment and the
engine will not ªrev-upº when you push further on the accelerator. This
is normal system behavior.
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If you should become stuck in snow
or on a very slippery road surface,
try switching the Traction Controly
system off with the traction control
switch located on the left hand side
of the radio. This may allow excess
wheel spin to ªdigº the vehicle out
or enable a successful ªrockingº
maneuver.
If the Traction Controlysystem is
cycled excessively, the brake portion of the system will shut down to
prevent the front brakes from overheating. A limited Traction Controly
function using only engine torque reduction will still control wheels from
over-spinning. When the front brakes have cooled down, the system will
again function normally. Anti-lock braking is not affected by this
condition and will function normally during the cool down period.
If a system fault is detected, CHECK TRACTION CONTROL is displayed
on the message center, the ªT/C OFFº warning indicator lamp is on and
your vehicle should be serviced.
AdvanceTracYStability Enhancement System (if equipped)
The AdvanceTracysystem helps the driver maintain the stability and
steer-ability of the vehicle. The system integrates anti-lock braking
system (ABS) and Traction Controlywith other vehicle systems to
further enhance the stability of the vehicle. The system shares many of
the electronic and mechanical elements already present in the Traction
Controlyand ABS systems.
AdvanceTracyconstantly monitors the vehicle motion relative to the
driver's intended course. This is done by using added sensors that
compare the steering inputs from the driver with the actual motion of
the vehicle. When there is a discrepancy between the driver's inputs and
the vehicle motion, AdvanceTracychanges the force at each tire to help
control the vehicle. If the vehicle begins to rotate excessively left or
right, spin out, or slide sideways, the system will attempt to correct the
excessive motion. If the vehicle does not respond to steering inputs, the
system will attempt to increase the turning response of the vehicle.
AdvanceTracyenhances stability during maneuvers that require all
available tire traction to control the vehicle. The system uses ABS and
Traction Controly(including control of the engine) as well as its more
advanced controls to enhance vehicle stability. The benefits of the
T/C
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AdvanceTracysystem are most noticeable when driving in wet/snowy/icy
road conditions and/or when performing emergency maneuvers. In an
emergency lane-change, the driver will experience better overall control
of the vehicle.
Driving conditions which may activate AdvanceTracyinclude:
²taking a turn too fast
²evasively maneuvering to avoid an accident, pedestrian or obstacle
²hitting a patch of ice
²changing lanes on a snow-rutted road
²entering a snow-covered side street from a snow-free road
²entering a gravel road from a paved road
²driving on slick surfaces
The AdvanceTracysystem is always ON when the engine is running.
The system does not work when the vehicle is traveling backwards. In
reverse, ABS and Traction Controlywill continue to function.
If you are operating the speed control system and road conditions
change causing the AdvanceTracyto activate, the AdvanceTracywill
disengage speed control. When driving conditions permit you can return
to speed control by pressing ªRESUMEº, refer toªSpeed Controlº
section in theDriver controlschapter.
The AdvanceTracyon/off control
button allows the driver to control
the availability of the Traction
Controlyand AdvanceTracy
system. This is independent of the
ABS function, which canNOTbe
switched off by the driver.
The AdvanceTracysystem status is
indicated by a ªTRAC ACTIVEº
indicator light in the instrument
cluster that will illuminate when the system is active. If a failure is
detected, the ªTRAC OFFº indicator light will stay ON, vehicles with a
message center (if equipped) will also display the warning ªCHECK
ADVANCETRACº , have the system serviced immediately.
The AdvanceTracysystem continually monitors and checks all sensors
used in improving the stability of the vehicle. Some drivers may notice a
slight movement of the brake pedal when the system checks itself.
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During AdvanceTracyoperation you may experience the following:
²A rumble or clicking sound much like ABS or Traction Controly
²A slight deceleration or a reduction in the acceleration of the vehicle
²The ªTRAC ACTIVEº indicator light will illuminate
²If your foot is on the brake pedal, you will feel a vibration in the pedal
much like ABS. As with any vehicle equipped with four-wheel ABS, do
not pump the brakes, but instead, press firmly on the pedal.
²If your foot is not on the brake, the brake pedal will move to apply
higher brake forces. You may also hear a whoosh of air from under the
instrument panel during this kind of braking.
All these conditions are normal during AdvanceTracyoperation.
Aggressive driving in any road conditions can cause you to lose
control of your vehicle increasing the risk of severe personal
injury or property damage. The occurrence of an AdvanceTracyevent
is an indication that at least some of the tires have exceeded their
ability to grip the road and that you may lose control of the vehicle. If
you experience a severe road event, SLOW DOWN.
If you find yourself regularly experiencing AdvanceTracyevents,
you are driving too fast for conditions, you should reduce your
speed, and drive less aggressively. Speed Control should NOT be used
under these conditions. AdvanceTrac is limited by the laws of physics.
It is always possible to lose control of a vehicle due to inappropriate
driver inputs for the conditions. The occurrence of an AdvanceTracy
event is an indication that at least some of the tires have exceeded
their ability to grip the road; this may cause you to lose control of the
vehicle increasing the risk of severe personal injury or property
damage.
STEERING
Your vehicle is equipped with power steering. Power steering uses energy
from the engine to help steer the vehicle.
To prevent damage to the power steering pump:
²Never hold the steering wheel to the extreme right or the extreme left
for more than a few seconds when the engine is running.
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The reverse sensing system is
automatically enabled when the gear
selector is placed in R (Reverse)
and the ignition is ON. A reverse
sensing control allows the driver to
disable the reverse sensing system
only when the ignition is ON, and
the gear selector is in R (Reverse).
The OFF indicator remains
illuminated when the system is
disabled. The system defaults to ON
every time the reverse gear is selected. Press the control to disable or
enable the system.
The indicator will remain illuminated to indicate a failure of the reverse
sensing system.
Always keep the sensors (located on the rear bumper/fascia) free
from dirt, snow and ice (do not clean the sensors with sharp
objects). These elements may cause the system to operate
inaccurately.
If the vehicle sustains damage to the rear bumper/fascia, leaving
it misaligned or bent, the sensing zone may be altered causing
inaccurate measurement of obstacles or false alarms.
DRIVING THROUGH WATER
Do not drive quickly through standing water, especially if the depth is
unknown. Traction or brake capability may be limited and if the ignition
system gets wet, your engine may stall. Water may also enter your
engine's air intake and severely damage your engine.
If driving through deep or standing water is unavoidable, proceed very
slowly. Never drive through water that is higher than the bottom of the
hubs (for trucks) or the bottom of the wheel rims (for cars).
Once through the water, always try the brakes. Wet brakes do not stop
the vehicle as effectively as dry brakes. Drying can be improved by
moving your vehicle slowly while applying light pressure on the brake
pedal.
Driving through deep water where the transmission vent tube is
submerged may allow water into the transmission and cause
internal transmission damage.
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If an overfill occurs, excess fluid
should be removed by a qualified
technician.
An overfill condition of
transmission fluid may cause shift and/or engagement concerns
and/or possible damage.
INFORMATION ABOUT UNIFORM TIRE QUALITY GRADING
New vehicles are fitted with tires
that have a rating on them called
Tire Quality Grades. The Quality
grades can be found where
applicable on the tire sidewall
between tread shoulder and
maximum section width. For
example:
²Treadwear 200 Traction AA Temperature A
These Tire Quality Grades are determined by standards that the United
States Department of Transportation has set.
Tire Quality Grades apply to new pneumatic tires for use on passenger
cars. They do not apply to deep tread, winter-type snow tires,
space-saver or temporary use spare tires, tires with nominal rim
diameters of 10 to 12 inches or limited production tires as defined in
Title 49 Code of Federal Regulations Part 575.104(c)(2).
U.S. Department of Transportation-Tire quality grades:The U.S.
Department of Transportation requires Ford to give you the following
information about tire grades exactly as the government has written it.
Treadwear
The treadwear grade is a comparative rating based on the wear rate of
the tire when tested under controlled conditions on a specified
government test course. For example, a tire graded 150 would wear one
and one-half (1 1/2) times as well on the government course as a tire
graded 100. The relative performance of tires depends upon the actual
conditions of their use, however, and may depart significantly from the
norm due to variations in driving habits, service practices, and
differences in road characteristics and climate.
DON’T ADD IF IN CROSSHATCH AREA--CHECH WHEN HOT-IDLING
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Traction AA A B C
The traction grades, from highest to lowest are AA, A, B, and C. The
grades represent the tire's ability to stop on wet pavement as measured
under controlled conditions on specified government test surfaces of
asphalt and concrete. A tire marked C may have poor traction
performance.
The traction grade assigned to this tire is based on
straight-ahead braking traction tests, and does not include
acceleration, cornering, hydroplaning or peak traction characteristics.
Temperature A B C
The temperature grades are A (the highest), B, and C, representing the
tire's resistance to the generation of heat and its ability to dissipate heat
when tested under controlled conditions on a specified indoor laboratory
test wheel. Sustained high temperature can cause the material of the tire
to degenerate and reduce tire life, and excessive temperature can lead to
sudden tire failure. The grade C corresponds to a level of performance
which all passenger car tires must meet under the Federal Motor Vehicle
Safety Standard No. 109. Grades B and A represent higher levels of
performance on the laboratory test wheel than the minimum required by
law.
The temperature grade for this tire is established for a tire that
is properly inflated and not overloaded. Excessive speed,
underinflation, or excessive loading, either separately or in
combination, can cause heat buildup and possible tire failure.
SERVICING YOUR TIRES
Low tire warning
The low tire warning system is designed to detect a significant loss of
inflation inany one of your tireson your vehicle. The system uses the
Anti-lock brake wheel speed sensors to detect a change in wheel speed
due to tire deflation.
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