2006 Acura MDX ignition

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.Without touching the accelerator
pedal, turn the ignition key to the
START (III) position. Do not hold
the key in the START (III)
position f or more than 15 seconds
at a time. If the engine does not
start right away, pause for at least
10 seconds bef ore trying again.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
down, and hold it there while
starting to clear flooding. If the
engine still does not start, return
to step 5.
5.
6.
1.
2.
3.
4.
Starting the Engine
Driving
201
T he immobilizer system protects your
vehicle f rom thef t. If an improperly-
coded key (or other device) is used, the
engine’s f uel system is disabled. For
more inf ormation, see page .
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.
80

These indicators on the instrument
panel show which position the shif t
lever is in.
The ‘‘D ’’ indicator comes on f or a
f ew seconds when you turn the
ignition switch to the ON (II)
position. If it f lashes while driving (in
any shif t position), it indicates a
possible problem in the transmission.If the malf unction indicator lamp
come on along with the ‘‘D ’’
indicator, there is a problem in the
automatic transmission control
system. Avoid rapid acceleration and
havethetransmissioncheckedbyan
Acura dealer as soon as possible.
Bef ore shif ting f rom park to any
position, press f irmly on the brake
pedal making sure to keep your f oot
of f the accelerator pedal. You cannot
shif t out of Park when the ignition
switch is in the LOCK (0) or
ACCESSORY (I) position.
5 5
Do this:
Press the brake pedal,
making sure to keep your
foot off the accelerator
pedal, then move the shift
lever.
Move the lever.
To shift from:
PtoR
RtoN
NtoD
DtoD
DtoD Dto22to1
1to2
2toD
DtoD
DtoD DtoN NtoRRtoP
5
54
43 3
3
34
45 5
Automatic Transmission
Shif t L ever Position Indicators
Shif ting
202

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, making sure to keep your f oot
of f the accelerator pedal, then shif t
f rom Park to Reverse. To shif t f rom
Neutral to Reverse, come to a
completestopandthenshift. 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 the
brake pedal, making sure to keep
your f oot of f the accelerator pedal,
when you are moving the shif t lever
f rom Neutral to another gear.
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
on page ). 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.
205
205
Automatic Transmission
Park (P)Shif t L ock Release Reverse (R)
Neutral (N)
Shif t L ock Release Drive (D )
5Driving
203

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.
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.
Remove the key from the Shift
Lock Release slot. 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 your dealer.
1.
2.
3.
4.
5.6.
Automatic Transmission
Shif t L ock Release
Driving
205
SHIFT LOCK RELEASE SLOT
COVER

The variable torque management
4WD (VTM-4) system 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.
do
any of the f ollowing: Press the VTM-4 LOCK button.
Move the shift lever to D , D or
D.
Turn the ignition switch to the
LOCK (0) position.
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.
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. 1.
2.
3.
54
3
To Engage the VTM-4 Lock To Disengage the VTM-4 Lock,
VTM-4 System
206
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.
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.

Without VSA, your vehicle will have
normal braking and cornering ability,
but it will not have VSA traction and
stability enhancement.VSA is turned on every time you
start the engine, even if you turned it
off the last time you drove the
vehicle.
Driving with varying tire or wheel
sizes may cause the VSA to
malf unction. When replacing tires,
make sure they are of the same size
and type as your original tires (see
page ).
Deactivate the VSA system if you
need to drive with the compact spare
tire installed (see page ).
If you install winter tires, make sure
they are the same size as those that
were originally supplied with your
vehicle. Exercise the same caution
during winter driving as you would if
your vehicle was not equipped with
VSA.
When VSA is off, the VSA activation
indicator comes on as a reminder.
If the indicator does not come on
when the ignition switch is turned to
the ON (II) position, there may be a
problem with the VSA system. Have
your dealer inspect your vehicle as
soon as possible.
This switch is under the lef t vent.
Press it to turn the VSA system on
and off. 255
260
VSA Of f Switch
VSA and Tire Sizes
Vehicle Stability Assist (VSA) System
214

If you have a f lat tire while driving,
stop in a saf e place to change it.
Drive slowly along the shoulder until
you get to an exit or an area to stop
that is far away from the traffic lanes.Park the vehicle on f irm, level, and
non-slippery ground. Put the
transmission in Park. Apply the
parking brake.Turn on the hazard warning lights,
and turn the ignition switch to the
LOCK (0) position. Have all
passengers get out of the vehicle
while you change the tire.
2.
1.
CONT INUED
Changing a Flat Tire
T aking Care of t he Unexpect ed
261
JACK
TOOLS SPARE TIRE
The vehicle can easily roll off
the jack, seriously injuring
anyone underneath.
Follow the directions for
changing a tire exactly, and
never get under the vehicle
when it is supported only by the
jack.

Diagnosing why the engine won’t
start f alls into two areas, depending
on what you hear when you turn the
ignition switch to the START (III)
position:You hear nothing, or almost
nothing. The engine’s starter
motor does not operate at all, or
operates very slowly.
You can hear the starter motor
operating normally, or the starter
motor sounds like it is spinning
f aster than normal, but the engine
does not start up and run.
When you turn the ignition switch to
the START (III) position, you do not
hear the normal noise of the engine
trying to start. You may hear a
clicking sound or series of clicks, or
nothing at all. Check the transmission interlock.
The transmission must be in Park
or neutral or the starter will not
operate.
Turn the ignition switch to the ON
(II) position. Turn on the
headlights, and check their
brightness. If the headlights are
very dim or do not come on at all,
the battery is discharged. See
on page . If the headlights dim noticeably or
go out when you try to start the
engine, either the battery is dis-
charged or the connections are
corroded. Check the condition of
the battery and terminal connec-
tions (see page ). You can
then try jump starting the vehicle
f rom a booster battery (see page
).
In this case, the starter motor’s
speed sounds normal, or even f aster
than normal, when you turn the
ignition switch to the START (III)
position, but the engine does not run. Are you using a properly coded
key? An improperly coded key will
cause the immobilizer system
indicator in the dash panel to blink
rapidly(seepage ).
Check these things: Turn the ignition switch to the
START (III) position. If the
headlights do not dim, check the
condition of the f uses. If the f uses
areOK,thereisprobably
something wrong with the
electrical circuit for the ignition
switch or starter motor. You will
need a qualif ied technician to
determine the problem (see
on page ). 80
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257
268
275
CONT INUED
If Your Engine Won’t Start
Nothing Happens or the Starter
Motor Operates Very Slowly Jump Starting
T he Starter Operates Normally
Emergency T owing
T aking Care of t he Unexpect ed
267