Page 183 of 517
SUBWOOFER-Use the
SUBWOOFER mode to adjust the
strength of the sound from the
subwoofer speaker. Turn the PWR/
VOL knob to the desired level (- 6to
+ 6). Even if the adjustment level
reaches -6, the subwoofer is not
turned off. Speed-sensitive volume
compensation (SVC)
-The SVC
mode controls the volume based on
vehicle speed. The faster you go, the
louder the audio volume becomes.
As you slow down, the audio volume
decreases.
The SVC has four modes: SVC OFF,
SVC LOW, SVC MID, and SVC
HIGH. Turn the PWR/VOL knob to
adjust the setting to your liking. Audio System Lighting
You can use the instrument panel
brightness control knob to adjust the
illumination of the audio system (see
page 120). The audio system
illuminates when the parking lights
are on, even if the system is turned
off.Playing the FM/AM Radio (Models without navigation system)17810/06/08 17:42:32 11 ACURA RDX MMC North America Owner's M 50 31STK640 enu
Page 299 of 517

The security system helps to protect
your vehicle and valuables from
theft. The horn sounds and a
combination of headlights, parking
lights, side marker lights, and
taillights flashes if someone attempts
to break into your vehicle or remove
the radio. This alarm continues for 2
minutes, then the system resets. To
reset an alarming system before the
2 minutes have elapsed, unlock the
driver's door with the key or the
remote transmitter.
The security system automatically
sets 15 seconds after you lock the
doors, hood, and the tailgate. For the
system to activate, you must lock the
doors and the tailgate from the
outside with the key, driver's lock
tab, door lock master switch, or
remote transmitter. The security
system indicator on the instrument
panel starts blinking immediately to
show you the system is setting itself.
Once the security system is set,
opening any door, the tailgate, or the
hood without using the key or the
remote transmitter, will cause the
alarm to activate. It will also activate
if the audio unit is removed from the
dashboard or the wiring is cut.The alarm will also be activated if a
passenger inside the locked vehicle
turns the ignition switch on.
The security system will not set if the
hood, tailgate, or any door is not fully
closed. Before you leave the vehicle,
make sure the doors, tailgate, and
hood are securely closed.
NOTE:
To see if the system is set
after you exit the vehicle, press the
LOCK button on the remote
transmitter within 5 seconds. If the
system is set, a beep will sound.
Do not attempt to alter this system or
add other devices to it.
SECURITY SYSTEM INDICATOR
Security System29410/06/08 17:42:32 11 ACURA RDX MMC North America Owner's M 50 31STK640 enu
Page 367 of 517

Modifying your vehicle, or installing
some non-Acura accessories, can
make your vehicle unsafe. Before
you make any modifications or add
any accessories, be sure to read the
following information.
Accessories
Your dealer has Acura accessories
that allow you to personalize your
vehicle. These accessories have been
designed and approved for your
vehicle, and are covered by warranty.
Although non-Acura accessories may
fit on your vehicle, they may not
meet factory specifications, and could
adversely affect your vehicle's
handling, stability, and reliability.
Improper accessories or
modifications can affect your
vehicle's handling, stability, and
performance, and cause a
crash in which you can be hurt
or killed.
Follow all instructions in this
owner's manual regarding
accessories and modifications.
When properly installed, cellular
phones, alarms, two-way radios, and
low-powered audio systems should
not interfere with your vehicle's
computer controlled systems, such
as your airbags, anti-lock brakes, and
tire pressure monitoring system. Before installing any accessory:
●Make sure the accessory does not
obscure any lights, or interfere
with proper vehicle operation or
performance.●Be sure electronic accessories do
not overload electrical circuits (see
page 469) or interfere with proper
operation of your vehicle.●Before installing any electronic
accessory, have the installer
contact your dealer for assistance.
If possible, have your dealer
inspect the final installation.●Do not install accessories on the
side pillars or across the rear
windows. Accessories installed in
these areas may interfere with
proper operation of the side
curtain airbags.
Accessories and Modifications36210/06/08 17:42:32 11 ACURA RDX MMC North America Owner's M 50 31STK640 enu
Page 378 of 517

You should do these checks and
adjustments before you drive your
vehicle:1. Make sure all windows, mirrors, and outside lights are clean and
unobstructed. Remove frost, snow,
or ice.
2. Check that the hood is fully closed.
3. Visually check the tires. If a tire looks low, use a gauge to check its
pressure.
4. Check that any items you may be carrying are stored properly or
fastened down securely. 5. Check the seat adjustment (see
page 134).
6. Check the adjustment of the inside and outside mirrors (see page
146).
7. Check the steering wheel adjustment (see page 122).
8. Make sure the doors and the tailgate are securely closed and
locked.
9. Fasten your seat belt. Check that your passengers have fastened
their seat belts (see page 15). 10. When you start the engine, check
the gauges and indicators in the
instrument panel, and the
messages on the multi-information
display (see pages 63, 73 and 74).
Preparing to Drive
373
Driving
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Page 391 of 517

Always use the parking brake when
you park your vehicle. Make sure the
parking brake is set firmly, or your
vehicle may roll if it is parked on an
incline.
Set the parking brake before you put
the transmission in Park. This keeps
the vehicle from moving and putting
pressure on the parking mechanism
in the transmission.Parking Tips
●Make sure the moonroof and the
windows are closed.●Turn off the lights.●Place any packages, valuables, etc.
in the cargo area or take them with
you.●Lock the doors and the tailgate.●Never park over dry leaves, tall
grass, or other flammable
materials. The hot three way
catalytic converter could cause
these materials to catch on fire.
●If the vehicle is facing uphill, turn
the front wheels away from the
curb.●If the vehicle is facing downhill,
turn the front wheels toward the
curb.●Check the indicator on the
instrument panel to verify that the
security system is set.●Make sure the parking brake is
fully released before driving away.
Driving with the parking brake
partially set can overheat or
damage the rear brakes.
Parking38610/06/08 17:42:32 11 ACURA RDX MMC North America Owner's M 50 31STK640 enu
Page 392 of 517

Your vehicle is equipped with disc
brakes at all four wheels. A power
assist using negative pressure
generated by the engine and the
electric 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.
When the electric vacuum pump is in
operation, it makes some mechanical
noises come from the engine
compartment. This is normal.
When you drive in cold weather or
thinner air at high altitude, the
electric vacuum pump operates more
frequently after the engine is started.
For more information about the
electric vacuum pump, see page 468.Resting your foot on the pedal keeps
the brakes applied lightly, builds up
heat, and reduces their effectiveness
and reduces brake pad life. In
addition, fuel economy can be
reduced. 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
effectiveness. 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
through deep water. Apply the
brakes moderately to see if they feel
normal. If not, apply them gently and
frequently until they do. Be extra
cautious and alert in your driving.Braking System Design
The hydraulic system that operates
the brakes has two separate circuits.
Each 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.
Brake Pad Wear Indicators
All four 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 for
the brakes to occasionally squeal or
squeak when you apply them.
Braking System
387
Driving
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Page 405 of 517

Trailer BrakesAcura recommends that any trailer
with a total trailer weight of 1,000 lbs
(450 kg) or more has its own brakes.
There are two common types of
trailer brakes: surge and electric.
Surge brakes are common for boat
trailers, since the brakes will get wet.
If you choose electric brakes, be sure
they are electronically actuated. Do
not attempt to tap into your vehicle's
hydraulic system. No matter how
successful it may seem, any attempt
to attach trailer brakes to your
vehicle's hydraulic system will lower
braking effectiveness and create a
potential hazard.
See your trailer dealer or rental
agency for more information on
installing electric brakes.
Trailer LightsTrailer lights and equipment must
comply with federal, provincial,
territorial, and local regulations.
Check with your local trailer sales or
rental agencies for the requirements
in the area where you plan to tow,
and use only equipment designed for
your vehicle.
Your vehicle has a trailer lighting
connector located under the right
side tool case in the cargo area. Refer
to the drawing above for the wiring
color code and purpose of each pin.
GROUND
(BLACK)HAZARD
LIGHT
(ORANGE)LEFT TURN
SIGNAL
(YELLOW)
RIGHT TURN
SIGNAL
(BROWN) BRAKE
LIGHT
(LIGHT
GREEN)TAILLIGHT
(RED)
Towing a Trailer40010/06/08 17:42:32 11 ACURA RDX MMC North America Owner's M 50 31STK640 enu
Page 406 of 517

Since lighting and wiring vary by
trailer type and brand, you should
have a qualified technician install a
suitable connector between the
vehicle and the trailer. Improper
equipment or installation can cause
damage to your vehicle's electrical
system and affect your vehicle
warranty.
Additional Towing EquipmentMany states, Canadian provinces and
territories require special outside
mirrors when towing a trailer. Even if
they don't, you should install special
mirrors if you cannot clearly see
behind you, or if the trailer creates a
blind spot.
Ask your trailer sales or rental
agency if any other items are
recommended or required for your
towing situation.Pre-Tow Checklist
When preparing to tow, and before
driving away, be sure to check the
following:
●The vehicle has been properly
serviced, and the suspension,
cooling system, and lights are in
good operating condition.
CONTINUED
Towing a Trailer
401
Driving
10/06/08 17:42:32 11 ACURA RDX MMC North America Owner's M 50 31STK640 enu