Acura MDX 2003 Owner's Manua

µIf you exceed the maximum speed
f or the gear you are in, the engine
speed will enter into the tachometer’s
red zone. If this occurs, you may f eel
the engine cut in and out. This is
caused by a limiter in the engine’s
computer controls. The engine will
run normally when you reduce the
RPM below the red zone. Set the Parking brake.
With the lever in this
position, the transmission locks in
First gear.
If you shif t into First position when
the vehicle speed is above 31 mph
(50 km/h), the transmission shif ts
into Second gear f irst to avoid
sudden engine braking. This allows you to move the shif t
lever out of Park if the normal
method of pushing on the brake
pedal does not work. This procedure
is also used to release the Reverse
Lockout.
Make sure the key is in the
ignition switch LOCK (0) position.
To release the Reverse Lockout,
make sure the key is in the
ACCESSORY (I) position.
1.
2.
CONT INUED
Engine Speed Limiter
Shift Lock Release
First (1)
Automatic Transmission
Driving257

Put a cloth on the edge of the Shif t
Lock Release slot cover next to
theshiftlever.Useasmallflat-
tipped screwdriver or small metal
plate (neither are included in the
tool kit) to remove the cover.
Caref ully pry on the edge of the
cover.Insert a screwdriver in the Shif t
Lock Release slot.
Push down on the screwdriver
while you press the release button
and move the shif t lever out of
Park to Neutral.
To release the Reverse Lockout,
move the shift lever from Neutral
to Reverse, then to Park.Remove the screwdriver f rom the
shif t lock release slot, then install
anewcover.
Depress the brake pedal and
restart the engine.
If you need to use the Shif t Lock
Release, it means your vehicle is
developing a problem. Have the
vehicle checked by your Acura
dealer.
3. 4.
5.6.
Automatic Transmission
Driving258
COVER
SHIFT LOCK RELEASE SLOT

The Variable Torque Management
4WD System (VTM-4) automatically
transf ers varying amounts of engine
torque to the rear wheels.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 when the shif t lever is in the
1, 2 or R position. As soon as this
f eature 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
259
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.

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 speed must be below
18 mph (30 km/h).
Move the shift lever to first (1),
second (2) or reverse (R) gear. To
shif t Reverse f rom Neutral, come
to a complete stop and then shift.
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
260
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.

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
Driving261

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.
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.
Your brakes may sometimes squeal
or squeak when you apply them
lightly. Do not conf use this with the
brake wear indicators. The
indicators make a very audible
‘‘screeching.’’ Brake Wear Indicators
The Braking System
Driving262

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
263
Front

Î
Îon 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.69
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
Driving264
ABS INDICATOR U.S. indicator shown

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.377
The Braking System
Driving265

The VSA system cannot enhance the
vehicle’s driving stability in all
situations and does not control your
vehicle’s entire braking system. It is
still your responsibility to drive and
corner at reasonable speeds and to
leave a sufficient margin of safety.When VSA activates, you will see the
VSA Activation indicator blink.
The Vehicle Stability Assist system
helps to stabilize the vehicle during
cornering if the vehicle turns more
or less than desired. It also assists
you in maintaining traction while
accelerating on loose or slippery
road surf aces. It does this by
regulating the engine’s output, and
by selectively applying braking.
When VSA activates, you may notice
that the engine does not respond to
the accelerator in the same way it
does at other times. You will also see
the VSA Activation Indicator blink.
Driving
Vehicle Stability Assist (VSA) System
VSA A ct ivat ion Indicat or
266
VSA ACTIVATION INDICATOR