2009 Acura TSX Engine

à
à
à
à
The transmission control system
monitors the accelerator pedal use
and your driving conditions. When
you press the accelerator pedal as in
normal driving, the system judges
that you are driving at a constant
cruising speed without using the
paddle shif ters. Under these
conditions, D-paddle shif t mode is
canceled, and the transmission
automatically returns to drive mode
(D).
The transmission remains in the
selected gear if you do not accelerate.
When the transmission returns to
drive mode (D), the displayed gear
number goes out.
Each time you pull either paddle
shif ter, the transmission shif ts one
gear up or down. If you want to shif t
up or down more than two gears, pull
the paddle shif ter twice, pause, and
then pull it again. The automatic transmission will not
allow you to shif t up or down if :
You downshif t bef ore the engine
speed f alls below the upper limit of
the lower gear.
If you try to do this, the gear
position indicator will f lash the
numberof thelowergearseveral
times, then return to a higher gear. You upshif t bef ore the engine
speed rises above the lower limit
of the higher gear.
You press both paddle shif ters at
thesametime.
The transmission downshif ts to f irst
gear and returns to drive mode (D)
when the vehicle comes to a
complete stop or the vehicle speed is
about 6 mph (10 km/h).
If there is a problem in the
transmission while you are driving
with the paddle shifters, the D
indicator f lashes, the D-paddle shif t
mode is canceled, and the
transmission returns to drive mode
(D).
To shift
from
54
43
32
21 Speed range
under 118 mph (190 km/h) under 87 mph (140 km/h) under 55 mph (88 km/h)
under 24 mph (38 km/h)
Here are the speed ranges f or
downshif ting.
Driving with the Paddle Shif ters
384
\f—\f—\fy
y
)!
\f\fy\fy
2009 TSX

´µ
When you move the shif t lever f rom
‘‘D’’ to ‘‘S’’ position and pull either
paddle shif ter, the gear position
indicator displays ‘‘M’’ along with the
selected gear number.
To upshif t, pull the (right) paddle
shif ter. To downshif t, pull the
(lef t) paddle shif ter. When you accelerate f rom a stop,
the transmission starts in f irst gear,
and you must manually upshif t
between f irst and f if th gears. Make
sure you upshif t bef ore the engine
speed reaches the tachometer’s red
zone.
The transmission remains in the
selectedgear(5,4,3,2,or1).There
is no automatic downshif t when you
push the accelerator pedal to the
f loor.
When you are driving in 4th or 5th
gear, the transmission downshifts to
the lower gear under the f ollowing
conditions:
The vehicle slows down to a
certain speed.
You press the brake pedal.
With the shif t lever in S position, you
can manually shif t up or down with
thepaddleshifters.The
transmission goes into the sequential
shif t mode and holds the selected
gear.
To enter the sequential shif t mode,
pressthereleasebuttononthefront
of the shift lever, move the lever to
the S position, then pull either paddle
shif ter. To return to drive mode (D),
move the shif t lever to the D position.
While you are driving in the
sequential shif t mode, the
transmission will not automatically
return to drive mode (D).
CONT INUED
Using the Paddle Shif ters in S
position (Sequential Shif t Mode)
Driving with the Paddle Shif ters
Driving
385
‘‘M’’ INDICATOR
GEAR POSITION INDICATOR
\f—\f—\fy
y
)!
\f\fy\f\fy
2009 TSX

à
à
à
à
Downshifting with the paddle shifter
allows you to increase the engine
braking when going down steep or
long hills, and provides more power
when climbing uphills. You can
upshif t the transmission manually to
reduce the rpm. Driving in the
higher gear helps f uel economy.
The transmission also shif ts
automatically as the vehicle comes to
a complete stop. It downshif ts to f irst
gear when the vehicle speed reaches
6mph(10km/h)orless. Here are the speed ranges f or
upshif ting and downshif ting.
The automatic transmission will not
allow you to shif t up or down if :
You downshif t bef ore the engine
speed f alls below the upper limit of
the lower gear.
If you try to do this, the gear
position indicator will f lash the
numberof thelowergearseveral
times, then return to a higher gear. To shift
from
12
23
34
45
If the vehicle speed decreases
below the redline of the selected
lowergearwhiletheindicatoris
f lashing, the transmission
downshif ts, and the indicator
displays the selected gear.
You upshif t bef ore the engine
speed rises above the lower limit
of the higher gear.
You press both paddle shif ters at
thesametime. Speed range
over 0 mph (0 km/h)
over 6 mph (10 km/h)
over 20 mph (32 km/h)
over 32 mph (52 km/h)
Driving with the Paddle Shif ters
386
\f—\f—\fy
y
)!
\f\fy\f
y
2009 TSX

Your vehicle 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 emergency
brake assist system increases the
stopping f orce when you depress the
brake pedal hard in an emergency
situation. The anti-lock brake system
(ABS) helps you retain steering
control when braking very hard.
Resting your f oot on the pedal keeps
the brakes applied lightly, builds up
heat, and reduces their ef f ectiveness
and reduces brake pad life. In
addition, f uel economy can be
reduced. It also keeps your brake
lights on all the time, conf using
drivers behind you.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.
All f our brakes have audible brake
wear indicators.
If the brake pads need replacing, you
will hear a distinctive, metallic
screeching sound when you apply
the brake pedal. If you do not have
the brake pads replaced, they will
screech all the time. It is normal f or
the brakes to occasionally squeal or
squeak when you apply them.
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 taking your f oot of f the
accelerator and downshif ting to a
lower gear.
Check the brakes after 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. Be extra
cautious and alert in your driving.
Braking System
Brake Pad Wear Indicators
Braking System DesignDriving
389
\f—\f—\fy
y
)!
\f\fy\fy
2009 TSX

Your vehicle is equipped with a tire
pressure monitoring system (TPMS)
that turns on every time you start the
engine and monitors the pressure in
your tires while driving.If you think you can saf ely drive a
short distance to a service station,
proceed slowly to the station, then
inflate the tire to the recommended
pressure.
Driving on a signif icantly under-
inf lated tire causes the tire to
overheat and can lead to tire failure.
Under-inf lation also reduces f uel
efficiency and tire tread life, and may
af f ect the vehicle’s handling and
stopping ability.
Becausetirepressurevariesby
temperature and other conditions,
the low tire pressure/TPMS
indicator may come on unexpectedly.
If the tire is flat, or if the tire
pressure is too low to continue
driving, replace the tire with the
compact spare tire (see page ).
Each tire has its own pressure
sensor. If the air pressure of a tire
becomes signif icantly low, the
sensor in that tire immediately sends
a signal that causes the low tire
pressure/TPMS indicator in the
instrument panel to come on. If this
happens, you will see which tire is
losing pressure on the multi-
inf ormation display along with a
‘‘CHECK TIRE PRESSURE’’
message. It is possible that the pressures
shown on the multi-inf ormation
display and the pressures you
manually measure are slightly
dif f erent.
If the dif f erence is signif icant or you
cannot make the low tire pressure/
TPMS indicator and message on the
multi-inf ormation display go out af ter
inf lating the tires to the specif ied
values, have your dealer check the
system as soon as possible.
When the low tire pressure/TPMS
indicator is on, one or more of your
tires is signif icantly underinf lated.
Youshouldstopandcheckyourtires
as soon as possible, and inflate them
to the proper pressure as indicated
on the vehicle’s tire inf ormation
placard.458Low Tire Pressure/
TPMS Indicator
Tire Pressure Monitoring System (TPMS)
392
\f—\f—\fy
y
)!
\f\fy\fy
2009 TSX

The vehicle stability assist (VSA)
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 the brakes.
When VSA activates, you may notice
that the engine does not respond to
the accelerator in the same way it
does at other times. There may also
be some noise f rom the VSA
hydraulic system. You will also see
the VSA activation indicator blink.
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.
If this indicator comes on while
driving, pull to the side of the road
when it is saf e, and turn of f the
engine. Reset the system by
restarting the engine. If the VSA
system indicator stays on or comes
back on while driving, have the VSA
system inspected by your dealer.
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.
When the VSA system indicator
comes on, you will also see a
‘‘CHECK VSA SYSTEM’’ message
on the multi-information display.
The main f unction of the
VSA system is generally known as
Electronic Stability Control (ESC).
The system also includes a traction
control f unction.
If the low tire pressure/TPMS
indicator comes on (see page ),
or the multi-information display
shows a ‘‘CHECK TPMS SYSTEM’’
message with the indicator flashing
(see page ), the VSA system
automatically turns on even if the
VSA system is turned off with the
VSA OFF switch. In this case, you
cannot turn the VSA system of f by
pressing the VSA OFF switch again. 392
395
VSA A ctivation Indicator
Vehicle Stability Assist
(VSA ) System Indicator
Vehicle Stability A ssist (VSA), aka Electronic Stability Control (ESC), System
398
NOTE:
\f—\f—\fy
y
)!
\f\fy\f\fy
2009 TSX

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 ).
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.
Immediately af ter f reeing your
vehicle, be sure to switch the VSA on
again. We do not recommend driving
your vehicle with the VSA and
traction control systems switched off.
In certain unusual conditions when
your vehicle gets stuck in shallow
mud or f resh snow, it may be easier
to free it with the VSA temporarily
switched of f . When the VSA system
is of f , the traction control system is
alsooff.Youshouldonlyattemptto
f ree your vehicle with the VSA of f if
you are not able to f ree it when the
VSA is on.
VSA is turned on every time you
start the engine, even if you turned it
off the last time you drove the
vehicle.
When VSA is off, the VSA activation
indicator comes on as a reminder. Press and hold the switch again. It
turns the system back on.
This switch is under the driver’s side
vent. To turn the VSA system on and
of f , press and hold it until you hear a
beep.
Without VSA, your vehicle will have
normal braking and cornering ability,
but it will not have VSA traction and
stability enhancement. 452
VSA and Tire Sizes
VSA Of f Switch
Vehicle Stability A ssist (VSA), aka Electronic Stability Control (ESC), System
Driving
399
VSA OFF SWITCH
\f—\f—\fy
y
)!
\f\fy\f\fy
2009 TSX

Your vehicle has been designed
primarily to carry passengers and
their cargo. You can also use it to
tow a trailer if you caref ully observe
the load limits, use the proper
equipment, and f ollow the guidelines
in this section.
The
maximum allowable weight of the
trailer and everything in or on it
must not exceed 1,000 lbs (450 kg).
Towing a load that is too heavy
can seriously af f ect your vehicle’s
handling and perf ormance. It can
also damage the engine and
drivetrain.
The weight that
the tongue of a f ully-loaded trailer
puts on the hitch should be
approximately 10% of the total
trailer weight. Too much tongue
load reduces front-tire traction and
steering control. Too little tongue
load can make the trailer unstable
and cause it to sway.
Avoid towing a trailer during your
vehicle’s f irst 600 miles (1,000 km)
(see page ).356
Load Limits
T otal T railer Weight: T ongue L oad:
Towing a Trailer
Break-In Period
400
Exceeding any load limit or
improperly loading your vehicle
and trailer can cause a crash in
which you can be seriously hurt
or killed.
Check the loading of your
vehicle and trailer carefully
beforestartingtodrive.
——y
y
)!
yy
2009 TSX