2011 Acura RDX air condition

If you check air pressures when the
tires are hot (driven for several
miles/kilometers), you will see
readings 4 to 6 psi (30 to 40 kPa, 0.3
to 0.4 kgf/cm
2) higher than the cold
readings. This is normal. Do not let
air out to match the recommended
cold air pressure. The tire will be
underinflated.
You should get your own tire
pressure gauge and use it whenever
you check your tire pressures. This
will make it easier for you to tell if a
pressure loss is due to a tire problem
and not due to a variation between
gauges.
While tubeless tires have some
ability to self-seal if they are
punctured, you should look closely
for punctures if a tire starts losing
pressure. Recommended Tire Pressures
The following charts show the
recommended cold tire pressures for
most normal driving conditions.
Tire Size Cold Tire Pressure
for Normal Driving
P235/55R18 99V Front/Rear:
32 psi (220 kPa ,
2.2 kgf/cm
2)
The compact spare tire pressure is:
60 psi (420 kPa , 4.2 kgf/cm
2)
For convenience, the recommended
tire sizes and cold tire pressures are
on a label on the driver's doorjamb.
For additional information about your
tires, see page 484. Tire Inspection
Every time you check inflation, you
should also examine the tires for
damage, foreign objects, and wear.
You should look for:
●Bumps or bulges in the tread or
side of the tire. Replace the tire if
you find either of these conditions.●Cuts, splits, or cracks in the side of
the tire. Replace the tire if you can
see fabric or cord.●Excessive tread wear.
CONTINUED
Tires
445
Maintenance
10/06/08 17:42:32 11 ACURA RDX MMC North America Owner's M 50 31STK640 enu

If the indicator comes on
while driving, it means one
of the engine's emissions control
systems may have a problem. Even
though you may feel no difference in
your vehicle's performance, it can
reduce your fuel economy and cause
increased emissions. Continued
operation may cause serious damage.
If you have recently refueled your
vehicle, the indicator coming on
could be due to a loose or missing
fuel fill cap. You will also see a
‘‘ TIGHTEN FUEL CAP ’’message on
the multi-information display.
Tighten the cap until it clicks at least
once. Tightening the cap will not turn
the indicator off immediately; it can
take several days of normal driving.
If the indicator comes on repeatedly,
even though it may turn off as you
continue driving, have your vehicle
checked by your dealer as soon as
possible.
If you keep driving with the malfunction
indicator lamp on, you can damage
your vehicle's emissions controls and
engine. Those repairs may not be
covered by your vehicle's warranties.
The indicator may also come on with
the ‘‘D ’’indicator.
You will also see a ‘‘CHECK
EMISSION SYSTEM ’’message on
the multi-information display (see
page 79).
Readiness Codes
Your vehicle has certain ‘‘readiness
codes ’’that are part of the on-board
diagnostics for the emissions
systems. In some states, part of the
emissions testing is to make sure
these codes are set. If they are not
set, the test cannot be completed. If the battery in your vehicle has
been disconnected or gone dead,
these codes may be erased. It can
take several days of driving under
various conditions to set the codes
again.
To check if they are set, turn the
ignition switch to the ON (II)
position, without starting the engine.
The malfunction indicator lamp will
come on for 20 seconds. If it then
goes off, the readiness codes are set.
If it blinks five times, the readiness
codes are not set. If possible, do not
take your vehicle for an emissions
test until the readiness codes are set.
Refer to
Emissions Testing for
more information (see page 490).
Malfunction Indicator Lamp46610/06/08 17:42:32 11 ACURA RDX MMC North America Owner's M 50 31STK640 enu

Brake System Indicator
(Red)U.S. CanadaThe brake system indicator (red)
normally comes on when you turn
the ignition switch to the ON (II)
position, and as a reminder to check
the parking brake. It will stay on if
you do not fully release the parking
brake.
If the brake system indicator (red)
comes on while driving, the brake
fluid level is probably low. Press
lightly on the brake pedal to see if it
feels normal. If it does, check the
brake fluid level the next time you
stop at a service station (see page
429).
You will also see a‘‘BRAKE FLUID
LOW ’’message on the multi-
information display (see page 79). If the fluid level is low, take your
vehicle to a dealer, and have the
brake system inspected for leaks or
worn brake pads.
However, if the brake pedal does not
feel normal, you should take
immediate action. A problem in one
part of the system's dual circuit
design will still give you braking at
two wheels. You will feel the brake
pedal go down much farther before
the vehicle begins to slow down, and
you will have to press harder on the
pedal.
You will also see a
‘‘CHECK BRAKE
SYSTEM ’’message on the multi-
information display (see page 79). Slow down by shifting to a lower
gear, and pull to the side of the road
when it is safe. Because of the long
distance needed to stop, it is
hazardous to drive the vehicle. You
should have it towed, and repaired as
soon as possible (see
Emergency
Towing on page 475).
If you must drive the vehicle a short
distance in this condition, drive
slowly and carefully.
If the ABS indicator and the VSA
system indicator come on with the
brake system indicator, have your
vehicle inspected by your dealer
immediately.
Brake System Indicator
467
Taking Care of the Unexpected
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LightsHeadlights High12 V－60 W (HB3)
Low
ꭧ
12 V －35 W (D2S)
Front turn signal/parking lights 12 V －24/2.2 CP (Amber)
Front fog lights 12 V －55 W (H11)
Front side marker lights 12 V －3CP
Rear turn signal lights 12 V －21 W
Brake/Taillights (in fenders) 12 V －21/5 W
Taillights (in tailgate) 12 V －3CP
Back-up lights 12 V －21 W
Rear side marker lights 12 V －2CP
License plate lights 12 V －3CP
High-mount brake light 12 V －16 W
Front ceiling lights/Spotlights 12 V －4CP
Rear ceiling light 12 V －8W
Glove box light 14 V －1.4 W
Console compartment light 14 V －1.4 W
Vanity mirror lights 12 V －2W
Door courtesy lights 12 V －2CP
Cargo area light 12 V －5W
ꭧ : The low beam headlights are high voltage discharged type.
Replacement of a low beam headlight bulb should be performed by
your dealer.
Air ConditioningRefrigerant type HFC-134a (R-134a)
Charge quantity 15.9－17.6 oz (450 －500 g)
Lubricant type SP-10BatteryCapacity12 V－52 AH/5 HR
12 V －65 AH/20 HRFusesInterior See page 473 or the fuse label
attached to the dashboard.
Under-hood See page 474 or the fuse box
covers.AlignmentToe-in Front 0.0 in (0 mm)
Rear 0.10 in (2.5 mm)
Camber Front 0 ° 10’
Rear －1°
Caster Front 2 ° 57’TiresSize Front/Rear P235/55R18 99V
Spare T165/80D17 104M
Pressure Front/Rear 32 psi (220 kPa , 2.2 kgf/cm
2)
Spare 60 psi (420 kPa , 4.2 kgf/cm2)
Specifications
481
Technical Information
10/06/08 17:42:32 11 ACURA RDX MMC North America Owner's M 50 31STK640 enu

The burning of gasoline in your
vehicle's engine produces several by-
products. Some of these are carbon
monoxide (CO), oxides of nitrogen
(NOx), and hydrocarbons (HC).
Gasoline evaporating from the tank
also produces hydrocarbons.
Controlling the production of NOx,
CO, and HC is important to the
environment. Under certain
conditions of sunlight and climate,
NOx and HC react to form
photochemical‘‘smog. ’’Carbon
monoxide does not contribute to
smog creation, but it is a poisonous
gas. The Clean Air Act
The United States Clean Air Act
ꭧ
sets standards for automobile
emissions. It also requires that
automobile manufacturers explain to
owners how their emissions controls
work and what to do to maintain
them. This section summarizes how
the emissions controls work.
Scheduled maintenance is on page
418.ꭧIn Canada, Acura vehicles comply
with the Canadian emission
requirements, as specified in an
agreement with Environment
Canada, at the time they are
manufactured. Crankcase Emissions Control
System
Your vehicle has a positive crankcase
ventilation system. This keeps
gasses that build up in the engine's
crankcase from going into the
atmosphere. The positive crankcase
ventilation valve routes them from
the crankcase back to the intake
manifold. They are then drawn into
the engine and burned.
Evaporative Emissions Control
System
As gasoline evaporates in the fuel
tank, an evaporative emissions
control canister filled with charcoal
adsorbs the vapor. It is stored in this
canister while the engine is off. After
the engine is started and warmed up,
the vapor is drawn into the engine
and burned during driving.
Emissions Controls
487
Technical Information
10/06/08 17:42:32 11 ACURA RDX MMC North America Owner's M 50 31STK640 enu

Onboard Refueling Vapor
Recovery
The onboard refueling vapor
recovery (ORVR) system captures
the fuel vapors during refueling. The
vapors are adsorbed in a canister
filled with activated carbon. While
driving, the fuel vapors are drawn
into the engine and burned off.
Exhaust Emissions Controls
The exhaust emissions controls
include three systems: PGM-FI,
ignition timing control, and three
way catalytic converter. These three
systems work together to control the
engine's combustion and minimize
the amount of HC, CO, and NOx that
come out the tailpipe. The exhaust
emissions control systems are
separate from the crankcase and
evaporative emissions control
systems.
PGM-FI SystemThe PGM-FI system uses sequential
multiport fuel injection.
It has three subsystems: air intake,
engine control, and fuel control. The
powertrain control module (PCM)
uses various sensors to determine
how much air is going into the
engine. It then controls how much
fuel to inject under all operating
conditions.Ignition Timing Control SystemThis system constantly adjusts the
ignition timing, reducing the amount
of HC, CO, and NOx produced.Three Way Catalytic ConverterThe three way catalytic converter is
in the exhaust system. Through
chemical reactions, it converts HC,
CO, and NOx in the engine's exhaust
to carbon dioxide (CO
2), nitrogen
(N
2), and water vapor. Replacement Parts
The emissions control systems are
designed and certified to work
together in reducing emissions to
levels that comply with the Clean Air
Act. To make sure the emissions
remain low, you should use only new
Acura replacement parts or their
equivalent for repairs. Using lower
quality parts may increase the
emissions from your vehicle.
The emissions control systems are
covered by warranties separate from
the rest of your vehicle. Read your
warranty manual for more
information.
Emissions Controls48810/06/08 17:42:32 11 ACURA RDX MMC North America Owner's M 50 31STK640 enu

A
Accessories andModifications
..........................
362
ACCESSORY (Ignition Key Position)
.................................
125
Accessory Power Sockets
..........
157
AcuraLink
®(U.S. models
only)
.......................................
332
Additives, Engine Oil
.................
421
Adjusting the Sound
............
177, 224
Adjusting the Steering Wheel....
122
Advanced Airbags
........................
28
Airbag (SRS)
..........................
10, 24
Air Conditioning System
............
164
Usage
......................................
165
Air Pressure, Tires
..............
444, 445
Alcohol in Gasoline
....................
352
Antifreeze
...................................
424
Anti-lock Brakes (ABS) Indicator
............................
66, 388
Operation
................................
388
Anti-theft, Audio System
.............
292
Anti-theft Steering Column Lock
.......................................
125 Armrests
....................................
138
Audio Antenna
...........................
439
Audio System
......................
172, 216
Automatic Lighting Off
Feature
...................................
118
Automatic Seat Belt Tensioners...
22
Automatic Speed Control
...........
300
Automatic Transmission
............
376
Capacity, Fluid
........................
480
Checking Fluid Level
..............
427
Driving with the Paddle Shifters
................................
380
Shifting
...................................
376
Shift Lever Position Indicators
............................
376
Shift Lever Positions
...............
377
Shift Lock Release
...................
379
Auxiliary Input Jack
...................
291
B
Battery Charging System
Indicator
........................
65, 465
Jump Starting
..........................
461 Maintenance
...........................
450
Specifications
..........................
481
Before Driving
...........................
351
Belts, Seat
................................
9, 20
Beverage Holders
......................
156
Bluetooth
®Audio
................
212, 280
Bluetooth
®HandsFreeLink
®......
306
Booster Seats
...............................
54
Brakes Anti-lock Brakes (ABS)
...........
388
Break-in, New Linings
.............
352
Bulb Replacement
...................
433
Fluid
.......................................
429
Parking
...................................
150
System Design
........................
387
System Indicator (Amber)
.......
468
System Indicator (Red)
...........
467
Wear Indicators
.......................
387
Braking System
..........................
387
Break-in, New Vehicle
................
352
Brightness Control,
Instruments
............................
120
CONTINUED
Index
I
INDEX
10/06/08 17:42:32 11 ACURA RDX MMC North America Owner's M 50 31STK640 enu