engine Acura MDX 2004 Owner's Guide

Help assure your vehicle’s f uture
reliability and perf ormance by paying
extra attention to how you drive
during the f irst 600 miles (1,000 km).
During this period:Avoid full-throttle starts and rapid
acceleration.
Do not change the oil until the
scheduled maintenance time. Your Acura is designed to operate on
premium unleaded gasoline with a
pump octane number of 91 or higher.
Useof aloweroctanegasolinecan
cause occasional metallic knocking
noises in the engine and will result in
decreased engine perf ormance.
You should also f ollow these same
recommendations with an
overhauled or exchanged engine, or
when the brakes are replaced. Avoidhardbrakingforthefirst
200 miles (300 km).
We recommended using a gasoline
containing detergent additives that
help prevent f uel system and engine
deposits. Some gasoline today is blended with
oxygenates such as ethanol or
MTBE. Your vehicle is designed to
operate on oxygenated gasoline
containing up to 10 percent ethanol
by volume and up to 15 percent
MTBE by volume. Do not use
gasoline containing methanol.
If you notice any undesirable
operating symptoms, try another
service station or switch to another
brand of gasoline.
In addition, in order to maintain good
perf ormance, f uel economy, and
emissions control, we strongly
recommend, in areas where it is
available, the use of gasoline that
does NOT contain manganese-based
f uel additives such as MMT. Use of
gasoline with these additives may
adversely affect performance, and
cause the Malf unction Indicator
Lamp on your instrument panel to
come on. If this happens, contact your
authorized Acura dealer f or service.
For f urther important f uel-related
inf ormation, please ref er to your
Quick Start Guide.
Break-in Period, Gasoline T ype
Bef ore Driving
Break-in Period
Gasoline Type
158

Remove the f uel f ill cap slowly.
You may hear a hissing sound as
pressure inside the tank escapes.
Place the cap in the holder on the
fuel fill door.
Stop f illing the tank af ter the f uel
nozzle automatically clicks of f . Do
not try to ‘‘top off’’ the tank. Leave
some room f or the f uel to expand
with temperature changes.even
though the tank is not full, there may
be a problem with your vehicle’s f uel
vapor recovery system. The system
helps keep f uel vapors f rom going
into the atmosphere. Consult your
dealer.
Open the f uel f ill door by pulling
onthehandletotheleftof the
driver’s seat. Park with the driver’s side closest
to the service station pump.
1.
2. 3.
4.
If the f uel nozzle keeps clicking of f
CONT INUED
Service Station Procedure
Bef ore Driving
Fueling
159
Pull
FUEL FILL CAP
Gasoline is highly flammable
and explosive. You can be
burned or seriously injured
when handling fuel.Stop the engine and keep
heat, sparks, and flames
away.
Handle fuel only outdoors.
Wipe up spills immediately.

Lif t the hood up most of the way.
The hydraulic supports will lif t it
uptherestof thewayandholdit
up.Wait a f ew minutes af ter turning the
engine of f bef ore you check the oil.Remove the dipstick (orange
handle).
Wipe the dipstick with a clean
cloth or paper towel.
Insert it all the way back in its tube. Remove the dipstick again and
check the level. It should be
between the upper and lower
marks.
If it is near or below the lower mark,
see on page .
Lower the hood to about a f oot (30
cm) above the f ender, then press
down f irmly with your hands. Make
sure it is securely latched.
1.
3.
3. 2.4.
205
Service Station Procedure
Bef ore Driving
A dding Oil
Oil Check
T o Close the Hood
161
DIPSTICK UPPER MARK
LOWER MARK

Look at the coolant level in the
radiator reserve tank. Make sure it is
between the MAX and MIN lines. If
it is below the MIN line, seeon page f or
inf ormation on adding the proper
coolant. Always maintain your vehicle
according to the maintenance
schedule. See
(see page
). Try to maintain a constant speed.
Everytimeyouslowdownand
speed up, your vehicle uses extra
fuel.Usethecruisecontrolwhen
appropriate.
Combine several short trips into
one.
The air conditioning puts an extra
load on the engine which makes it
usemorefuel.Usethefresh-air
ventilation when possible.
Refer to on page f or inf ormation
about checking other items on your
Acura. The build-up of snow or mud on
your vehicle’s underside adds
weight and rolling resistance.
Frequent cleaning helps your f uel
mileage and reduces the chance of
corrosion.
Drive moderately. Rapid
acceleration, abrupt cornering and
hard braking use more f uel.
Always drive in the highest gear
possible.an underinf lated tire
causes more ‘‘rolling resistance,’’
which uses f uel.
208 198
198
For example,
Service Station Procedures, Fuel Economy
Bef ore Driving
Engine Coolant Check A dding
Engine Coolant Improving Fuel Economy
Owner’s
Maintenance Checks
Owner’s Maintenance
Checks
162
RESERVE TANK
MAX MIN

This section gives you tips on
starting the engine under various
conditions, and how to operate the
automatic transmission. It also
includes important inf ormation on
parking your vehicle, the braking
system, the VTM-4 System, the VSA
system, Tire Pressure Monitoring
System, and f acts you need if you are
planning to tow a trailer.........................
Driving Guidelines .170
........................
Preparing to Drive .170
.......................
Starting the Engine .171
..............
Automatic Transmission . 172
Variable Torque Management ..............................
4WD System .176
..............................
VTM-4 Lock .176
Tire Pressure Monitoring System ......................................
(TPMS) .177
...........................................
Parking .179
.............................
Braking System .180
...........................
Anti-lock Brakes .181
Vehicle Stability Assist (VSA) ........................................
System .183
.................
Towing Weight Limits . 185
...........................
Towing a Trailer .188
Towing Your Vehicle Behind a ................................
Motorhome .190
..............
Of f -Highway Guidelines . 192
Driving
Driving169

Your vehicle has higher ground
clearance that allows you to travel
over bumps, obstacles, and rough
terrain. It also provides good
visibility so you can anticipate
problems earlier.
Because your vehicle rides higher
of f the ground, it has a high center
of gravity that can cause it to roll
over if you make abrupt turns. Utility
vehicles have a signif icantly higher
roll over rate than other types of
vehicles.
To prevent rollovers or loss of
control:Take corners at slower speeds
than you would with a passenger
vehicle.
Avoid sharp turns and abrupt
maneuvers whenever possible. Do not modif y your vehicle in any
way that would raise the center of
gravity.
Do not carry heavy cargo on the
roof .
Youshoulddothefollowingchecks
and adjustments bef ore you drive
your vehicle. Make sure all windows, mirrors,
and outside lights are clean and
unobstructed. Remove f rost, snow,
or ice. Make sure the doors and tailgate
are securely closed and locked. Check the steering wheel
adjustment (see page ). Check the adjustment of the
inside and outside mirrors (see
page ). Check the seat adjustment (see
page ). Check that any items you may be
carrying are stored properly or
f astened down securely.
When you start the engine, check
the gauges and indicators in the
instrument panel (see page ).
Visually check the tires. If a tire
looks low, use a gauge to check its
pressure. Fasten your seat belt. Check that
your passengers have f astened
their seat belts (see page ).
1.
2. 3.
4.
5.
6.
7.
8.
9.
84
92 76
1457
See page f or additional guidelinesf or driving of f -highway. 192
Driving Guidelines, Preparing to Drive
Driving
Driving Guidelines
Preparing to Drive
170

Apply the parking brake.
In cold weather, turn of f all
electrical accessories to reduce
the drain on the battery.
Make sure the shif t lever is in
Park. Press on the brake pedal.
If the engine does not start within
15 seconds, or starts but stalls
right away, repeat step 4 with the
accelerator pedal pressed halfway
down. If the engine starts, release
pressure on the accelerator pedal
so the engine does not race.If the engine fails to start, press
the accelerator pedal all the way
downandholdittherewhile
starting to clear flooding. If the
engine still does not start, return
to step 5.
Without touching the accelerator
pedal, turn the ignition key to the
START (III) position. Do not hold
the key in START (III) f or more
than 15 seconds at a time. If the
engine does not start right away,
pause f or at least 10 seconds
bef ore trying again.
5. 6.
1.
2.
3.
4.
Starting the Engine
Driving171
NOTICE: The engine is harder to start
in cold weather. Also, the thinner air
f ound at altitudes above 8,000 f eet
(2,400 meters) adds to this problem.

µµµµµ
µ
CONT INUED
This position mechani-
cally locks the transmission. Use
Park whenever you are turning of f or
starting the engine. To shif t out of
Park, you must press on the brake
pedal and have your f oot of f the
accelerator pedal.
If you have done all of the above and
still cannot move the lever out of
Park, see on
page .
To avoid transmission damage, come
to a complete stop bef ore shif ting
into Park. The shif t lever must be in
Park bef ore you can remove the key
from the ignition switch. Press the brake
pedal to shift from Park to Reverse.
To shif t f rom Reverse to Neutral,
come to a complete stop and then
shif t.
Your vehicle has a reverse lockout so
you cannot accidentally shif t to
Reverse from Neutral or any other
driving position when the vehicle
speed exceeds 7 9 mph (12 14
km/h).
If you cannot shif t to Reverse when
the vehicle is stopped, press the
brake pedal and slowly shift to
Neutral, and then to Reverse.
If there is a problem in the reverse
lockout system, or your vehicle’s
battery is disconnected or goes dead,
you cannot shif t to Reverse. (Ref er
to Shif t Lock Release on page ). Use Neutral if you
need to restart a stalled engine, or if
it is necessary to stop brief ly with
the engine idling. Shif t to the Park
position if you need to leave your
vehicle for any reason. Press on the
brake pedal when you are moving
the shift lever from Neutral to
another gear.
Use this position f or
normal driving. The transmission
automatically selects a suitable gear
f or your speed and acceleration. You
may notice the transmission shif ting
up at higher speeds when the engine
is cold. This helps the engine warm
up f aster.
175
175
Automatic Transmission
Driving
Park (P)Shif t L ock Release Reverse (R)
Neutral (N)
Drive (D )
5
173

µµ µThese positions
are similar to D , except when you
select the D position, only the f irst
f our gears are selected. When you
select D , only the f irst three gears
are selected. D can also keep the
transmission f rom cycling between
f ourth and f if th gears in stop-and-go
driving, and D can keep the
transmission f rom cycling between
third and f ourth gears. This position locks
thetransmissioninsecondgear.It
does not downshif t to f irst gear
when you come to a stop.
Use Second gear: For more power when climbing.
To increase engine braking when
going down steep hills.
For starting out on a slippery
surf ace or in deep snow.
When driving downhill with a
trailer. 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.
If 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.
Use D to provide engine braking
when going down a steep hill. D
gives you more power and increased
engine braking.
5
4
3 4
3
3 3
Automatic Transmission
Driving
Drive(D,D) Second(2)First(1)
Engine Speed L imiter43
174

Set the Parking brake.
Make sure the ignition switch is in
the LOCK (0) position.
To release the Reverse Lockout,
make sure the ignition switch is in
the ACCESSORY (I) position. Put a cloth on the edge of the Shif tLock Release slot cover. Using a
key, caref ully pry on the edge of
the cover to remove it.
Insert the key in the Shift Lock
Release slot.
Push down on the key and move
the shift lever out of Park to
Neutral.To release the reverse lockout,
move the shift lever from Neutral
to Reverse, then to Park.
Remove the key from the Shift
Lock Release slot, then install the
cover. Press 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 it
checked by an Acura dealer.
Do this if pushing on the brake pedal
does not shif t the transmission out of
Park. This procedure is also used to
release the Reverse Lockout.
1.
2.
3.
4.
5.6.
Automatic Transmission
Driving
Shif t L ock Release
175
COVER
SHIFT LOCK RELEASE SLOT