2005 Acura MDX transmission

The Variable Torque Management
4WD System (VTM-4) automatically
transf ers varying amounts of engine
torque to the rear wheels under
lower traction conditions.The vehicle must be stopped with
the engine running.
If more traction is needed when your
vehicle is stuck, or is likely to
become stuck, you can use the
VTM-4 Lock button to increase
torque to the rear wheels. Move the shift lever to First (1),
Second (2), or Reverse (R) gear.
Press the VTM-4 Lock button.
The indicator in the button comes
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 indicator in the button
will remain on.
1.
2.
3.
54
3
To Engage the VTM-4 Lock To Disengage the VTM-4 Lock,
VTM-4 System
204
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 noise and
vibration can also result. Do not continuously spin the f ront tires
of your vehicle. 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.
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. If the vehicle is f acing uphill, turn
the f ront wheels away f rom the
curb, and set the parking brake.
If the vehicle is f acing downhill,
turn the front wheels toward the
curb, and set the parking brake.
Parking T ips
Parking
Driving
207

Î
Î
ÎNumber of
Occupants 2
3
4
5
6
7 Equipped with transmission cooler and power steering f luid cooler.
Max. T railer Weight Max. T ongue Load
T owing is Not Recommended
Number of
Occupants 2
3
4
5
6
7 Equipped with transmission cooler and power steering f luid cooler.
Max. T railer Weight Max. T ongue Load
T owing is Not Recommended
Towing Weight Limits
Driving
215
4500 lbs (2045 kg)
4500 lbs (2045 kg)
4500 lbs (2045 kg)
4000 lbs (1820 kg) 1700 lbs (770 kg) 450 lbs (205 kg)
410 lbs (185 kg)
310 lbs (140 kg)
215 lbs (100 kg)
90 lbs (40 kg)
3500 lbs (1590 kg)
3500 lbs (1590 kg)
3000 lbs (1365 kg) 2000 lbs (910 kg)
1000 lbs (455 kg) 450 lbs (205 kg)
410 lbs (185 kg)
310 lbs (140 kg)
215 lbs (100 kg)
90 lbs (40 kg)
The corresponding weight limits assume occupants fill seats from the front of the vehicle to the back, each occupant weighs 150 lbs (70 kg) and each has 1 5lbs(7
kg) of luggage in the cargo area.
Total Trailer Weight and Tongue Load Limits: BOAT TRAILERS
OTHER TYPES OF TRAILERS

Towing generally requires a variety
of supplemental equipment. To
ensure the best quality, we
recommend that you purchase Acura
equipment whenever possible.
Your dealer of f ers a trailer package
that includes a hitch, a ball mount, a
wiring harness, a heavy-duty
transmission f luid cooler.
Discuss any additional needs with
your trailer sales or rental agency,
and make sure all equipment is
properly installed, maintained, and
also meets state, f ederal, province,
and local regulations.We strongly recommend that you
have your dealer install an Acura
hitch and use the required f luid
coolers. Using non-Acura equipment
may result in serious damage to your
vehicle.
To help prevent overheating, a
heavy-duty transmission f luid cooler
and a heavy-duty power steering
f luid cooler are required f or trailer
towing. These coolers are available
only f rom your dealer.
A weight distributing hitch is not
recommended f or use with your
vehicle, as an improperly adjusted
weight distributing hitch may reduce
handling, stability, and braking
perf ormance.
Check the weight of the unhitched
trailer. Limit: See page .
Calculate the tongue load.
Subtract the weight in Step 5 f rom
the
weight in step 6.
Limit: See page .
Range: 5-10% f or boat trailers
8-15% f or other trailers
6.
7.
215
215
CONT INUED
Towing a Trailer
T owing Equipment and
A ccessoriesHitch
T ransmission Fluid Cooler andPower St eering Fluid Cooler
Weight Distributing Hitch
Driving
217

Your vehicle tires and spare are in
good condition and properly
inf lated.
The trailer tires and spare are in
good condition and inf lated as
recommended by the trailer
maker.The added weight, length, and
height of a trailer will af f ect your
vehicle’s handling and perf ormance,
so driving with a trailer requires
some special driving skills and
techniques.
Foryoursafetyandthesafetyof
others,taketimetopracticedriving
maneuvers bef ore heading f or the
open road, and f ollow the guidelines
below.
Avoid towing a trailer during your
vehicle’s f irst 500miles (800
kilometers) (see page ).
Drive slower than normal in all
driving situations, and obey posted
speed limits f or vehicles with trailers.
When towing a f ixed-sided trailer (88
km/h). At higher speeds, the trailer
mayswayoraffectvehiclehandling. To prevent the transmission f rom
shif ting f requently, drive in the D4
position.
Maketurnsmoreslowlyandwider
than normal. The trailer tracks a
smaller arc than your vehicle, and it
canhitorrunoversomethingthe
vehicle misses. Allow more time and
distance f or braking. Do not brake or
turn suddenly as this could cause the
trailer to jackknif e or turn over.
186
Towing a Trailer
Driving Saf ely With a T railer
Break-In Period
T owing Speeds and Gears Making T urns and Braking
220

When climbing hills, closely watch
your temperature gauge. If it nears
the red (hot) mark, turn the air
conditioning of f , reduce speed and, if
necessary, pull to the side of the
road to let the engine cool.
If the transmission shif ts f requently
while going up a hill, shif t to D3.
If you must stop when f acing uphill,
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.Crosswinds and air turbulence
caused by passing trucks can disrupt
your steering and cause trailer
swaying. When being passed by a
large vehicle, keep a constant speed,
and steer straight ahead. Do not try
to make quick steering or braking
corrections.
Always drive slowly and have
someone guide you when backing up.
Grip the bottom of the steering
wheel, then turn the wheel to the lef t
to get the trailer to move to the lef t.
Turn the wheel to the right to move
the trailer to the right.
Follow all normal precautions when
parking, including putting the
transmission in Park and f irmly
setting the parking brake. Also, place
wheel chocks at each of the trailer’s
tires.If the vehicle’s tires 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.
204
3
Towing a Trailer
Driving on Hills
Handling Crosswinds and Buf f et ing
Backing UpParking Ret rieving a Boat
Remember, it
takes longer to slow down and
stop when towing a trailer.
Driving
221

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.)
242
543 5
Ext ended T owing
Towing Your Vehicle Behind a Motorhome
222
The 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.

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.
204
If You Get Stuck
Towing a Trailer Off-Road
Of f -Highway Driving Guidelines
Driving
225