Acura MDX 2002 Owner's Manual

The Variable Torque Management
4WD System (VTM-4) automatically
transf ers varying amounts of engine
torque to the rear wheels under low
traction conditions.If more traction is needed when your
MDX is stuck or is likely to become
stuck, you can use the VTM-4 Lock
button to increase torque to the rear
wheels. As soon as this feature is no
longer needed, press the VTM-4
Lock button again to disengage the
VTM-4 Lock.
Variable Torque Management 4WD System
Driving
VTM-4 Lock
217
Do not use the VTM-4 Lock button on
dry, paved roads. Driving on dry,
paved roads with VTM-4 Lock ON may
damage the rear dif f erential when
making a turn. Strange noises and
vibration can also result.
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To engage the VTM-4 Lock:To disengage the VTM-4 Lock, do
one of the f ollowing:
Press the VTM-4 Lock button.
Move the shift lever to D , D or
D.
Turn the ignition to OFF (0).
When you restart your MDX, the
VTM-4 Lock f eature will be of f .
The VTM-4 Lock will temporarily
disengage when the vehicle speed
exceeds 18 mph (30 km/h). It will
automatically engage again as the
speed slows below 18 mph (30
km/h). The light in the VTM-4 Lock
button will remain on the whole time.
The vehicle must be stopped.
Move the shift lever to first (1),
second (2) or reverse (R) gear.
Press the VTM-4 Lock button.
The light in the button will come
on.
To get unstuck, apply light pressure
to the accelerator pedal. Do not spin
the f ront tires f or more than a f ew
seconds. Because of the amount of
torque applied to the rear tires, they
should not spin. This is normal. If
you are not able to get the vehicle to
move, apply the brakes to stop the
wheels, then reverse direction. 1.
2.
3.
34
5
Driving
Variable Torque Management 4WD System
218
Do not continuously spin the f ront tires
of your MDX. Continuously spinning
the f ront tires can cause transmission
or rear dif f erential damage.
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µ
Always use the parking brake when
you park your vehicle. The indicator
on the instrument panel shows that
the parking brake is not f ully
released; it does not indicate that the
parking brake is f irmly set. Make
sure the parking brake is set f irmly
or your vehicle may roll if it is
parked on an incline.
Set the parking brake bef ore you put
the transmission in Park. This keeps
the vehicle from moving and putting
pressure on the parking mechanism
in the transmission making it
easier to move the shif t lever out of
Park when you want to drive away. If the vehicle is f acing uphill, turn
the f ront wheels away f rom the curb.
If the vehicle is f acing downhill, turn
the f ront wheels toward the curb.
Make sure the parking brake is f ully
released bef ore driving away.
Driving with the parking brake
partially set can overheat or damage
the rear brakes.
Make sure the moonroof and the
windows are closed.
Never park over dry leaves, tall
grass, or other f lammable
materials. The three way catalytic
converter gets very hot, and could
cause these materials to catch on
fire. Lockthedoorswiththekeyorthe
remote transmitter. Place any packages, valuables, etc.,
in the cargo area or take them
with you. Turn of f the lights.
Parking T ips
Parking
Driving219
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When the brake pads need replacing,
you will hear a distinctive metallic
‘‘screeching’’ sound when you apply
the brakes. If you do not have the
brake pads replaced, they will begin
screeching all the time.
Your brakes may sometimes squeal
or squeak when you apply them
lightly. Do not conf use this with the
brakewearindicators.Theymakea
very audible ‘‘screeching.’’
Constant application of the brakes
when going down a long hill builds
up heat and reduces their ef f ective-
ness. Use the engine to assist the
brakes by downshif ting to a lower
gear and taking your f oot of f the
accelerator pedal.
Check your brakes af ter driving
through deep water. Apply the
brakes moderately to see if they f eel
normal. If not, apply them gently and
f requently until they do. Since a
longer distance is needed to stop
with wet brakes, be extra cautious
and alert in your driving.
Your Acura is equipped with disc
brakes at all f our wheels. A power
assist helps reduce the ef f ort needed
on the brake pedal. The ABS helps
you retain steering control when
braking very hard.
Put your f oot on the brake pedal only
when you intend to brake. Resting
your f oot on the pedal keeps the
brakes applied lightly, causing them
to build up heat. Heat build-up can
reduce how well your brakes work. It
also keeps your brake lights on all
the time, conf using drivers behind
you.
All f our brakes have audible brake
wear indicators. Brake Wear Indicators
The Braking System
Driving220
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You will f eel a pulsation in the brake
pedal when the ABS activates, and
you may hear some noise. This is
normal; it is the ABS rapidly
pumping the brakes.this defeats the
purpose of the ABS. Let the ABS
work f or you by always keeping f irm,
steady pressure on the brake pedal
as you steer away from the hazard.
This is sometimes ref erred to as
Activation varies with the amount of
traction your tires have. On dry
pavement, you will need to press on
thebrakepedalveryhardbeforeyou
activate the ABS. However, you may
feel the ABS activate immediately if
you are trying to stop on snow or ice.
Your vehicle has an Anti-lock Brake
System (ABS) as standard
equipment. ABS helps to prevent the
wheels f rom locking up and skidding
during hard braking, allowing you to
retain steering control.
When the f ront tires skid, you lose
steering control; the vehicle
continues straight ahead even
though you turn the steering wheel.
The ABS helps to prevent lock-up
and helps you retain steering control
by pumping the brakes rapidly; much
f aster than a person can do it.
The hydraulic system that operates
the brakes has two separate circuits.
Each circuit works diagonally across
the vehicle (the lef t-f ront brake is
connected with the right-rear brake,
etc.). If one circuit should develop a
problem, you will still have braking
at two wheels.
The ABS also balances the f ront-to
rear braking distribution according
to vehicle loading.
‘‘stomp and steer.’’
CONT INUED
You should never pump the
brake pedal;
Anti-lock Brakes
Brake System Design
Driving
The Braking System
221
F Fr roo n
nt
t
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Î
ÎÎ
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on loose or
uneven surf aces, such as gravel or
snow, than a vehicle without anti-
lock. Slow down and allow a greater
distance between vehicles under
those conditions.
Always steer moderately
when you are braking hard. Severe
or sharp steering wheel movement
can still cause your vehicle to veer
into oncoming traffic or off the road. such as trying to take a
corner too f ast or making a sudden
lane change. Always drive at a safe,
prudent speed f or the road and
weather conditions. it only helps with steering
control during braking. You should
always maintain a saf e f ollowing
distance f rom other vehicles.
The ABS is self -checking. If anything
goes wrong, the ABS indicator on
the instrument panel comes on (see
page ). This means the anti-lock
f unction of the braking system has
shut down. The brakes still work like
a conventional system without anti-
lock, providing normal stopping
ability. You should have the dealer
inspect your vehicle as soon as
possible.63
A BS Indicat or
Import ant Saf et y RemindersA vehicle with A BS may require a
longer distance to stop
A BS cannot prevent a loss of
stability. A BS will not prevent a skid that
results f rom changing direction
abruptly, A BS does not reduce the time or
distance it takes to stop the
vehicle,
The Braking System
Driving222
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inn d
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icca at too r
r s
shh o
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wn n
A
A
B
BSS I
INND DI
ICCA A T
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OR R
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If the ABS indicator and the brake
system indicator come on together,
and the parking brake is f ully
released, the front-to-rear braking
distribution system may also shut
down.
Test your brakes as instructed on
page . If the brakes f eel normal,
drive slowly and have your vehicle
repaired by your dealer as soon as
possible. Avoid sudden hard braking
which could cause the rear wheels to
lock up and possibly lead to a loss of
control.331
The Braking System
Driving223
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µµAlways drive
slower than you would in dry
weather. It takes your vehicle longer
to react, even in conditions that may
seem just barely damp. Apply
smooth, even pressure to all the
controls. Abrupt steering wheel
movements or sudden, hard appli-
cation of the brakes can cause loss of
control in wet weather. Be extra
cautious f or the f irst f ew miles
(kilometers) of driving while you
adjust to the change in driving
conditions. This is especially true in
snow. A person can f orget some
snow-driving techniques during the
summer months. Practice is needed
to relearn those skills.
Exercise extra caution when driving
in rain af ter a long dry spell. Af ter
months of dry weather, the f irst
rains bring oil to the surf ace of the
roadway, making it slippery.
Rain, f og, and snow conditions re-
quire a dif f erent driving technique
because of reduced traction and
visibility. Keep your vehicle well-
maintained and exercise greater
caution when you need to drive in
bad weather. The cruise control
should not be used in these condi-
tions. Being able to see
clearly in all directions and being
visible to other drivers are important
in all weather conditions. This is
more dif f icult in bad weather. To be
seen more clearly during daylight
hours, turn on your headlights.
Inspect your windshield wipers and
washers f requently. Keep the wind-
shield washer reservoir f ull of the
proper f luid. Have the windshield
wiper blades replaced if they start to
streak the windshield or leave parts
unwiped. Use the def rosters and air
conditioning to keep the windows
f rom f ogging up on the inside (see
page ). 128
Driving T echnique
Visibility
Driving in Bad Weather
Driving224
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µCheck your tires
f requently f or wear and proper
pressure. Both are important in
preventing ‘‘hydroplaning’’ (loss of
traction on a wet surface). In the
winter, mount snow tires on all f our
wheels f or the best handling.
Watch road conditions caref ully,
they can change f rom moment to
moment. Wet leaves can be as slip-
pery as ice. ‘‘Clear’’ roads can have
patches of ice. Driving conditions
can be very hazardous when the
outside temperature is near f reezing.
The road surf ace can become
covered with areas of water puddles
mixed with areas of ice, so your
traction can change without warning.
Be caref ul when downshif ting. If
traction is low, you can lock up the
drive wheels f or a moment and cause
askid. Be very cautious when passing, or
beingpassedbyothervehicles.The
spray f rom large vehicles reduces
your visibility, and the wind buf f eting
can cause you to lose control.
Traction
Driving in Bad Weather
Driving225
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Your MDX has been designed to tow
a trailer, as well as f or carrying
passengers and their cargo.
To saf ely tow a trailer, you should
observe the load limits, use the
proper equipment, and f ollow the
guidelines in this section.
Be sure to read thesectiononpage if you
plan to tow off paved surfaces.
The
maximum weight you can tow
depends on several f actors. See
page f or limits f or your towing
situation. Towing a load that is too
heavy can seriously af f ect your
vehicle’s handling and
perf ormance. The weight that
the tongue of a f ully loaded trailer
puts on the hitch should be 5 to 10
percent of total trailer weight f or
boat trailers, and 8 to 15 percent of
total trailer weight for all other
trailers. See page f or limits f or
your towing situation.
240
228 228
Off-Highway
Guidelines
Load Limits
T otal T railer Weight: T ongue L oad:
Towing a Trailer
Driving226
Exceeding any load limit or
improperly loading your vehicle
and trailer can cause a crash in
which you can be seriously hurt
or killed.
Check the loading of your
vehicle and trailer carefully
beforestartingtodrive.
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