2007 Acura RDX engine

Your vehicle is equipped with disc
brakes at all four wheels. A power
assist using negative pressure
generated by the engine and the
el ectric vacuum pump helps reduce
the effort needed on the brake pedal.
The anti-lock brake system (ABS)
helps you retain steering control
when braking very hard.
All four brakes have audible brake
wear indicato rs.
The
hydraulic system that operates
the brakes has two separate circuits.
Ea ch circuit works diagonally across
the vehicle (the left-front brake is
connected with the right-rear brake,
etc.). If one circuit should develop a
problem, you will still have braking
at two wheels.
If the brake pads need replacing, you
will hear a distincti ve, 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 norm al for
the brakes to occasionally squeal or
squeak when you apply them.
Resting
your foot on the pedal keeps
the brakes applied lightly, builds up
heat, and reduces their effectiveness.
It also keeps your brake lights on all
the time, confusing drivers behind
you.
Constant application of the brakes
when going down a long hill builds
up heat and reduces their effective-
ness. Use the engine to assist the
brakes by taking your foot off the
accelerator and downshifting to a
lower gear.
Check your brakes after driving
th rough deep water. Apply the
brakes moderate ly to see if they feel
norm al. If not, apply them gently and
frequently until they do. Be extra
cautious and alert in your driving.
When
the electric vacuum pump is in
operation, it makes some mechanical
noises come f rom the engine
compartment. This is normal.
When you drive in cold weather or
thinner air at high altitude, the
electric vacuum pump operates more
f requently af ter the engine is started.
For more inf ormation about the
electric vacuum pump, see page . 396
Braking System
Brake Pad Wear Indicators Braking System Design
306
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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. Al
though your tire pressure is
monito red, you must manually check
thetirepressuresmonthly.
Each tire, including the spare, should
be checked monthly when cold, and
set to the recommended inflation
pressure as specified on the vehicle
placard and in the owner’s manual
(see page ).
Driving on a signifi cantly under-
inflated tire causes the tire to
ov erheat and can lead to tire failure.
Under-infl ation also reduces fuel
efficiency and tire tread life, and may
affect the vehicle’s handling and
stopping ability. When
the low tire pressure indicator
is on, one or more of your tires is
signifi cantly underinflated. You
should stop and check your tires as
soon as possible, and inflate them to
the proper pressure as indicated on
the vehicle’s tire information placard.
Each
tire has its own pressure
sensor. If the air pressure of a tire
becomes significantly low, the
sensor in that tire immediately sends
a signal that causes the low tire
pressure indicator to come on.
With this indicator on, you will see
which tire is losing the pressu re on
the multi-information display along
with a ‘‘CHECK TIRE PRESSU RE’’
message (see page ).
With
this indicator on, you will see
which tire is losing the pressu re on
thetirepressure monitor(seepage
).
373
311
312
CONT INUED
On RDX with Technology Packagemodel
On RDX model
Tire Pressure Monitoring System (TPMS)
Low Tire Pressure
Indicator
Driving
309
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The VSA system cannot enhance the
vehicle’s driving stability in all
situ ations 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.
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 surfaces. 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. You will also see
the VSA activation indicator blink. When
VSA activates, you will see the
VSA activation indicator blink (see
page ).
If this indicator comes on while
driving, pull to the side of the road
when it is safe, and turn off 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 deale r.
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 vehic le as
soon as possible. You will also see a ‘‘CHECK VSA
SYSTEM’’ message on the multi-
inf ormation display (see page ).
Without VSA, your vehicle will have
normal braking and cornering ability,
but it will not have VSA traction and
stability enhancement.
When you put a spare tire on the
wheel, TPMS indicator or ‘‘CHECK
TPMS SYSTEM’’ message
(depending on the models) may
come on. When the indicator or
message is on, you are unable to turn
of f the VSA system with the VSA
OFF switch.
70
85
On RDX with Technology Package
modelVSA A ctivation Indicator
Vehicle Stability Assist
(VSA ) System Indicator
Vehicle Stability Assist (VSA) System
Driving
315
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This switch is under the driver’s side
vent. To turn the VSA system on and
off, press and hold it until you hear a
beep.
When VSA is off, the VSA activation
indicator comes on as a reminder.
VSA is turned on every time you
start the engine, even if you turn ed it
off the last time you drove the
vehicle. Driving
with varying tire or wheel
sizes may cause the VSA to
malfunction. When replacing tires,
make sure they are 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.
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.
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.
376
Vehicle Stability Assist (VSA) System
VSA Of f Switch
VSA and Tire Sizes
316
VSA OFF SWITCH
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Your vehicle has been designed
primarily to carry passengers and
their cargo. You can also use it to
tow a trailer if you carefully observe
the load limits, use the proper
equipment, and follow the guidelines
in this section.
Be sure to read the sectiononpage
if you plan to tow of f paved
surf aces.
The
maximum allowable weight of the
trailer and everything in or on it
must not exceed 1,500 lbs (680 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. Theweightthatthe
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 f ront-tire
traction and steering control. Too
little tongue load can make the
trailer unstable and cause it to sway.
324
CONT INUED
Off-Highway
Driving Guidelines Load Limits
T otal T railer Weight:
T ongue L oad:
Towing a Trailer
Driving
317
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.
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When climbing hills, closely watch
your temperature gauge (see pages
and ). If it nears the H (Hot)
mark, turn the A/C of f , reduce
speed and, if necessary, pull to the
side of the road to let the engine cool.
When driving down hills, reduce
your speed, and shif t down to S
position, or use the puddle shif t to
the lower gear (3, 2 or 1)in the S
position. When towing a trailer, do
not ‘‘ride’’ the brakes, and remember,
it will take longer to slow down and
stop when towing a trailer.
Drive slower than normal in all
driving situations, and obey posted
speed limits f or vehicles with trailers.
Use the D position when towing a
trailer on level roads. See ‘‘
’’ in the next column f or
additional gear inf ormation. Do not
exceed 55 mph (88 km/h). At higher
speeds, the trailer may sway or
af f ect vehicle handling.
Make turns more slowly and wider
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.
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
in this section.
8378
Driving on Hills
T owing Speeds and Gears
Driving on
Hills
Making T urns and BrakingDriving Saf ely With a T railer
Towing a Trailer
322
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This section explains why it is
important to keep your vehicle well
maintained and how to follow basic
maintenance safety precautions.
This section also includes
instructions on how to read the
maintenance minder messages on
the information display or multi-
info rmation display (dep ending on
models), a mainten ance record, and
instructions for simple maintenance
tasks you may want to take care of
yourself.
If you have the skills and tools to
perform more complex maintenance
tasks on your vehicle, you may want
to purchase the service manual. See
page f or inf ormation on how to
obtain a copy, or see your dealer. ......................
Maintenance Saf ety .328
....................
Maintenance Minder .330
....................
Maintenance Record .344
..............................
Fluid Locations .346
........................
Adding Engine Oil .347
.................
Required Engine Oil .347
.........
Changing the Oil and Filter .349
..............................
Engine Coolant .351
....................
Windshield Washers .353
....
Automatic Transmission Fluid .355
....................................
Brake Fluid .357
....................
Power Steering Fluid .358
.............................................
Lights .359
................
Cleaning the Seat Belts .366
.....................................
Floor Mats .366
..............................
Audio Antenna .367
.....................................
Intercooler .367
..................
Dust and Pollen Filter .367
.................................
Wiper Blades .368
...............................................
Tires .372
...................
Checking the Battery .378
.............................
Vehicle Storage .380
425
Maintenance
Maint enance
327
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All service items not detailed in this
section should be perf ormed by a
certif ied technician or other qualif ied
mechanic.To eliminate potential hazards, read
the instructions bef ore you begin,
and make sure you have the tools
and skills required.
Make sure your vehicle is parked
on level ground, the parking brake
is set, and the engine is of f .
To clean parts, use a commercially
available degreaser or parts
cleaner, not gasoline.
To reduce the possibility of f ire or
explosion, keep cigarettes, sparks,
and flames away from the battery
and all f uel-related parts.
Wear eye protection and
protective clothing when working
with the battery or compressed air.
Maintenance Saf ety
Important Saf ety Precautions
328
Improperly maintaining this
vehicle, or failing to correct a
problem before driving can
cause a crash in which you can
be seriously hurt or killed.
Always follow the inspection
and maintenance
recommendations and
schedules in this owner’s
manual.
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