2004 Acura MDX lock

The Variable Torque Management
4WD System (VTM-4) automatically
transf ers varying amounts of engine
torque to the rear wheels under
lower 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.The vehicle must be stopped with
the engine running.
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 move the vehicle,
stop and reverse direction. do
one of the f ollowing: Press the VTM-4 Lock button.
Move the shift lever to D , D or
D.
Turn the ignition switch to LOCK
(0).
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 button light will remain
on.
1.
2.
3.
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3
To Engage the VTM-4 Lock To Disengage the VTM-4 Lock,
VTM-4 System
Driving176
NOTICE: NOTICE:
Do not use the VTM-4 Lock
button on dry, paved roads. Driving on
dry, paved roads with VT M-4 Lock ON
may damage the rear dif f erential when
making a turn. Strange noise and
vibration can also result. 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.

Always use the parking brake when
you park your vehicle. Make sure
the parking brake is set f irmly or
your vehicle may roll if it is 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.Make sure the moonroof and the
windows are closed.
Turn of f the lights.
Place any packages, valuables, etc.
in the cargo area, or take them
with you.
Lock the doors.
Never park over dry leaves, tall
grass, or other f lammable
materials. The hot three way
catalytic converter could cause
these materials to catch on fire.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 front 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.
Parking T ips
Parking
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The Anti-lock Brake System (ABS)
helps prevent the brakes f rom
locking up and helps you retain
steering control by pumping the
brakes rapidly, much f aster than a
person can do it.
The ABS also balances the f ront-to-
rear braking distribution according
to vehicle loading.
Let the ABS work f or you by always
keeping f irm, steady pressure on the
brake pedal. This is sometimes
ref erred to as ‘‘stomp and steer.’’You will f eel a pulsation in the brake
pedal when the ABS activates, and
may hear some noise. This is normal:
it is the ABS rapidly pumping the
brakes. On dry pavement, you will
need to press on the brake pedal
very hard before the ABS activates.
However, you may f eel the ABS
activate immediately if you are trying
to stop on snow or ice.
If the ABS indicator comes on, the
anti-lock f unction of the braking
system has shut down. The brakes
still work like a conventional system,
but without anti-lock. You should
have the dealer inspect your vehicle
as soon as possible.
You should never pump the brake pedal.
Activating the Anti-lock Brakes
ABS Indicator
Anti-lock Brakes (ABS)
Driving181

If the ABS indicator and the break
system indicator come on together
and the parking break 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 Acura 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.It only helps with the
steering control during braking.
such as trying to take a
corner too f ast or making a sudden
lane change. Always drive at a safe
speed f or the road and weather
conditions. on loose or
uneven surf aces, such as gravel or
snow, than a vehicle without anti-
lock.
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.
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Important Saf ety Reminders
A BS does not reduce the time or
distance it takes to stop the
vehicle.
A BS will not prevent a skid that
results f rom changing direction
abruptly, A vehicle with A BS may require a
longer distance to stop
A BS cannot prevent a loss of
stability.
Anti-lock Brakes (ABS)
Driving182

When driving with a f ix-sided (e.g.
camper, utility) trailer, do not
exceed 55 mph (88 km/h). At
higher speeds, the trailer may
sway or affect vehicle handling.
Whenbeingpassedbyatruckor
large vehicle, cross-winds and air
turbulence can disrupt your
steering and cause your trailer to
sway. Keep a constant speed, steer
straight ahead, and do not try to
make quick steering or braking
corrections.
Do not park on an incline unless it
is unavoidable. If you must, turn
the vehicle’s wheels toward the
curb on a downhill or away f rom
the curb on an uphill. Af ter
parking, place wheel chocks at
each trailer tire on the downhill
side.Always drive slowly and have
someone guide you when backing up.
Grip the of the steering
wheel; then turn the wheel to the lef t
to get the trailer to move to the lef t,
andturnthewheelrighttomovethe
trailer to the right.
If the vehicle’s wheels slip when
retrieving a boat f rom the water,
shif t to f irst gear, and turn on VTM-4
Lock (see page ). Disengage
VTM-4 Lock as soon as the boat is
out of the water to prevent damage
to the VTM-4 system.
When climbing hills, closely watch
your temperature gauge. If it nears
the red (Hot) mark, reduce speed
and, if necessary, pull to the side of
the road and let the engine cool.
If the transmission shif ts f requently
while going up a hill, shif t down one
gear.
If youmuststopwhenfacinguphill,
use the f oot brake or parking brake.
Do not try to hold the vehicle in
placebypressingontheaccelerator,
this could cause the automatic
transmission to overheat.
When driving down hills, reduce
your speed and shif t down to D . Do
not ‘‘ride’’ the brakes.
176
bottom
3
Backing Up
Ret rieving a Boat Driving on Hills
Towing a Trailer
Driving
Remember it
will take longer to slow down and
stop when towing a trailer.
190

Your MDX can be towed behind a
motorhome at legal highway speeds
up to 65 mph (100 km/h). Do not
exceed 65 mph (100 km/h) or severe
transmission damage will occur. To
avoid damage to the 4WD system, it
must be towed with all f our wheels
on the ground (f lat towing).
When purchasing a tow bar, make
sure you select a reputable
manuf acturer. Follow the
manufacturer’s attachment
instructions caref ully.
Perf orm this procedure every day
immediately bef ore you begin towing.
Otherwise, severe automatic
transmission damage will occur.Start the engine. Check the transmission f luid level
(see page ). Press on the brake pedal. Shif t the
lever through all the positions (P,
R,N,D,D,D,2,1).
ShifttoD ,thentoN.Letthe
engine run f or three minutes, then
turn it off.
Release the parking brake.
Leave the ignition switch in the
ACCESSORY (I) position so the
steering wheel does not lock.
Make sure the radio and any items
plugged into the accessory power
sockets are turned of f so you do
not run down the battery.
If you tow more than 8 hours in one
day, you should repeat the above
procedure at least every 8 hours
(when you stop f or f uel, etc.)
210
543 5
Ext ended T owing
Towing Your Vehicle Behind a Motorhome
Driving191
NOTICE: T he steering system can be
damaged if the steering wheel is locked.
Leave the ignition switch in the
ACCESSORY (I) position, and make
sure the steering wheel turns f reely
bef ore you begin towing.

Before you leave the pavement, be
sure to do all scheduled maintenance
and service and that you inspect your
vehicle. Pay special attention to the
condition of the tires and check the
tire pressure.
After you return to the pavement,
caref ully inspect your vehicle to
make sure there is no damage that
could make driving it unsaf e.
Recheck the condition of the tires
and the tire pressure.
The route presents limits (too steep
or bumpy roads). You have limits
(driving skill and comf ort). And your
vehicle has limits (traction, stability,
and power).
Driving of f -highway can be
hazardous if you f ail to recognize
limits and take the proper
precautions.Forbettertractiononallsurfaces,
accelerate slowly and gradually build
up speed. If you try to start too fast
on wet soil, mud, snow, or ice, you
might not have enough traction to
get underway and you may dig
yourself a hole. Starting with the
shif t lever in second gear (2) will
help you have a smoother start on
snow and ice.
Keep in mind that you will usually
need more time and distance to
brake to a stop on unpaved surf aces.
Avoid hard braking. Do not pump
the brakes; let the anti-lock braking
system pump them f or you.
Debris in the road can damage your
suspension or other components.
Because your vehicle has a high
center of gravity, driving over a large
obstacle, or allowing a wheel to drop
into a deep hole can cause yourvehicle to tip or roll over.
If you can’t clearly see all road
conditions or obstacles, walk the
slope bef ore you drive on it. If you
have any doubt whether or not you
can saf ely drive on the slope, don’t
do it. Find another route.
Bef ore driving through water, stop
and make sure that:
The water is not deep enough to
cover your wheel hubs, axles or
exhaust pipe. You could stall and
not be able to restart your engine.
The water can also damage
important vehicle components.
If you are driving up a hill and f ind
that you cannot continue,
. Your vehicle could roll
over. Slowly back down the hill,
f ollowing the same route you took up
the hill.
do not try to
turn around
Check Out Your Vehicle
Remember: Accelerating and Braking
Avoiding ObstaclesDriving on Slopes
Crossing a Stream
Of f -Highway Driving Guidelines
Driving193

The banks are sloped so you can
drive out.
The water is not f lowing too f ast.
Deep rushing water can sweep you
downstream. Even very shallow
rushingwatercanwashthe
ground f rom under your tires and
cause you to lose traction and
possibly roll over.
The banks and surf ace under the
water provide good traction. The
water may hide hazards such as
rocks, holes, or mud.
If you decide it is saf e to drive
through water, choose a suitable
speed and engage the VTM-4 Lock.
Proceed without shif ting or changing
speeds, and do not stop the vehicle
or shut of f the engine.
After driving through water, test
your brakes. If they got wet, gently
pump them while driving slowly until
they operate normally. If the water is deeper than the wheel
hubs, some additional service may
be required. This service is not
covered by your warranties.
If you get stuck, engage the VTM-4
Lock (see page ). Caref ully try to
go in the direction (f orward or
reverse) that you think will get you
unstuck. Do not spin the tires at high
speeds. It will not help you get out
and may cause damage to the
transmission or VTM-4 system.
If you are unable to f ree yourself ,
your vehicle is equipped with f ront
and rear tow hooks designed f or this
purpose.
Use a nylon strap to attach the MDX
to the recovery vehicle and caref ully
take out the slack in the strap. Once
the strap is tight, the recovery
vehicle should apply f orce.
Remember that the recovery vehicleneeds good traction to avoid
becoming stuck, too.
You should never use a jack to try to
get unstuck. Your vehicle could
easily slip of f the jack and hurt you
or someone else.
You may be able to safely tow a
lightweight trailer (such as a
motorcycle or small tent trailer) of f -
road if you f ollow these guidelines.
Do not exceed 1,000 lbs (450 kg)
or a tongue weight of 100 lbs (45
kg).
Trytostayonsmooth,leveldirt
roads, and avoid driving in hilly
terrain.
Allow extra room f or starting,
stopping, and turning.
Slow down if you encounter bumps
or other obstacles.
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If You Get Stuck
Towing a Trailer Off-Road
Of f -Highway Driving Guidelines
Driving194