sensor Acura MDX 2007 Owner's Guide

To regulate the interior temperature
and humidity, the climate control
system has two sensors. A sunlight
sensor is located in the top of the
dashboard and a temperature/
humidity sensor is next to the
steering column. Do not cover the
sensors or, spill liquid or spray
chemical cleaners on the sensors. Sunlight and T emperature
Sensors
Climate Control System
Features
177
TEMPERATURE/HUMIDITY SENSOR
SUNLIGHT SENSOR
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Store or secure all items that could
be thro wn around and hurt
someone during a crash.
Be sure items placed on the floor
behind the front seats cannot roll
under the seats and interfere with
the driver’s ability to operate the
pedals, the proper operation of the
seats, or proper operation of the
sensors under the seats.
Keep the glove box closed while
driving. If it is open, a passenger
could injure their knees during a
crash or sudden stop. If
you carry large items that
prevent you from closing the
tailgate, exhaust gas can enter the
passenger area. To avoid the
possibility of , f ollow the instructions
on page .
If you carry any items on a roof
rack,besurethetotalweightof
the rack and the items does not
exceed 165 lbs (75 kg).
If you use an accessory roof rack,
the roof rack weight limit may be
lower. Ref er to the inf ormation
that came with your roof rack.
Distribute cargo evenly on the
f loor of the cargo area, placing the
heaviest items on the bottom and
as far forward as possible. Tie
down items that could be thrown
about the vehicle during a crash or
sudden stop.
If youfolddownthesecondor
third row seats, tie down items
that could be thrown about the
vehicle during a crash or sudden
stop.
58
Carrying Cargo in the Passenger
Compartment
carbon monoxide
poisoning
Carrying Cargo in the Cargo A rea
or on a Roof Rack
Carrying Cargo
326
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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.
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 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.When the low tire pressure indicator
is on, one or more of your tires is
signif icantly underinf lated. You
should stop and check your tires as
soon as possible, and inf late them to
the proper pressure as indicated on
the vehicle’s tire inf ormation placard.
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
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.
Becausetirepressurevariesby
temperature and other conditions,
the low tire pressure indicator may
come on unexpectedly. 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. If the tire is f lat, or if the tire
pressure is too low to continue
driving, replace the tire with the
compact spare tire.
CONT INUED
Tire Pressure Monitoring System (TPMS)
Low Tire Pressure
Indicator
Driving
343
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CONT INUED
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 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.
To see the inf lation pressures of all
f our tires, press the SEL/RESET
button. The display changes as
shown above.
Each tire pressure is shown in PSI
(U.S. models) or in kPa (Canadian
models).
Tire Pressure Monitoring System (TPMS)
Driving
345
U.S. model
Canadian model This shows that front left tire is
losing pressure.
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As required by the FCC:
This device complies with Part 15 of the
FCC rules. Operation is subject to the
following two conditions: (1) This device
may not cause harmful interference, and
(2) this device must accept any
interference received, including
interference that may cause undesired
operation.
Changes or modifications not expressly
approved by the party responsible for
compliance could void the user’s
au thority to operate the equipment.
This device complies with Industry
Canada Standard RSS-210.
Operation is subject to the following two
conditions: (1) this device may not cause
interference, and (2) this device must
accept any interference that may cause
undesired operation of the device.If the low tire pressure indicator
comes on, or the multi -information
display shows a ‘‘CHECK TPMS
SYSTEM’’ message, the VSA system
automatically turns on even when
the VSA system is turned off by
pressing the VSA OFF button (see
page ). If this happens, you
cannot turn the VSA system off by
pressing the VSA OFF button again.
When you restart the vehicle with
thecompactsparetire,theTPMS
system message may also be
displayed on the multi -information
display after driving several miles
(kilometers).
If you have a flat tire, the low tire
pressu re and tire monitor indicators
will come on. Replace the indicated
flat tire with the compact spare tire
(see page ). Each wheel is equipped with a tire
pressure sensor mounted inside the
tire behind the valve stem. You must
use TPMS specif ic wheels. It is
recommended that you always have
your tires serviced by your dealer or
qualif ied technician.
Af ter you replace the f lat tire, the
low tire pressure indicator stays on.
This is normal; the system is not
monitoring the spare tire pressure.
Manually check the spare tire
pressure to be sure it is correct.
Never use a puncture-repairing agent
in a f lat tire. If used, you will have to
replace the tire pressure sensor.
Havetheflattirerepairedbyyour
dealer as soon as possible.
419
352
Tire Pressure Monitoring System (TPMS)
Changing a T ire with T PMS
Driving
347
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CONT INUED
Theactivedampersystemisalways
on, constantly adjusting your vehicle’s
dampers to the best settings f or
current road conditions along with
vehicle speed and handling inputs.
The system uses electrically
controlled dampers to enhance
handling precision, vehicle
composure, tire to road adhesion and
rough road ride comf ort isolation.
The system reacts to inputs f rom
various electronic sensors to give
exactly the right amount of
suspension damping to provide
optimal ride comf ort and handling.The system provides two selectable
modes.
Sport mode: The system prioritizes
handling response, vehicle body
control and tire-to-road adhesion to
allow f or higher perf ormance
handling.
Comf ort mode: The system
prioritizes road isolation to allow f or
a more comf ortable ride.
Eithermodecanbeusedinanytype
of operating conditions.
To switch between comf ort and
sport mode, press and release the
active damper system button located
on the center console to choose the
desired mode.
U.S. Sport Packages and Canadian Elite
models
A ctive Damper System
Driving
353
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Under these conditions, trailer
stability assist begins to stabilize the
vehicl e/trailer combination by
reducing the vehicle speed. The
control unit sends signals to
selectively apply the brakes and
regulate the engine output. The
brake lights of your vehicle will be
turned on automatically by the
system even if you do not keep the
pressu re on the brake pedal.
Your
vehicle is equipped with trailer
stability assist function. This
function works on the same sensors
as the vehicle stability assist (VSA)
system. This function helps to
stabilize the vehicl e/trailer
combination when the trailer
severely sways or oscillates. For
more information of the VSA system,
see page .
When the brakes are applied, the
trailer’s brake lights come on along
wi th the vehicle brake lights.
When the trailer stability assist
activates, you will see the VSA
activation indicator blink. There may
also be some noise from the VSA
hydraulic system. Trailer
stability assist cannot prevent
a loss of control. Always reduce the
ve hicle speed and steer firmly. Do
not brake suddenly or make quick
steering motion. It could cause the
trailertojackknifeorturnoverand
the system becomes ineffective.
Trailer stability assist cannot prevent
swaying that can occur in crosswinds
and in normal and emergency
driving maneuvers. It helps only to
stabilize the vehicl e/trailer
combination in these conditions,
after the oscillation becomes severe.
If
the function detects the vehicle/
trailer instability, it checks if the
swaying is caused by the trailer, and
if the trailer swaying or oscillation is
increasing.
The vehicle/trailer combination is
more affected by crosswinds,
buffeting, and improper tongue load.
These conditions can make the
trailer unstable, and cause it to sway. Always obey the recommended
speed limits f or towing a trailer, see
page . Trailer stability assist will also be
inef f ective while driving at high
speed or towing a trailer with a high
center or gravity.
351
365
T railer Stability A ssist
Driving
367
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A non-Acura f loor mat may not f it
your vehicle properly. This could
prevent the proper operation of the
passenger’s seat weight sensors. We
recommend using genuine Acura
f loor mats. Do not put additional
f loor mats on top of the anchored
mat.
The floor mats that came with your
vehicle hook over f loor mat anchors.
This keeps the f loor mats f rom
sliding f orward or backward and
possibly interf ering with the pedals
or making the f ront passenger’s
weight sensors inef f ective.
If you remove a f loor mat, make sure
tore-anchoritwhenyouputitback
in your vehicle.
Floor Mat s
404
Rear
Front
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The exhaust emissions controls
include f our systems: PGM-FI,
ignition timing control, exhaust gas
recirculation, and three way catalytic
converter. These f our 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 f rom the crankcase and
evaporative emissions control
systems.
The PGM-FI system uses sequential
multiport f uel injection.
It has three subsystems: air intake,
engine control, and f uel control. The
powertrain control module (PCM)
uses various sensors to determine
how much air is going into the
engine. It then controls how much
f uel to inject under all operating
conditions.This system constantly adjusts the
ignition timing, reducing the amount
of HC, CO, and NOx produced.
The exhaust gas recirculation (EGR)
system takes some of the exhaust
gas and routes it back into the intake
manif old. Adding exhaust gas to the
air/f uel mixture reduces the amount
of NOx produced when the f uel is
burned.
The 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 ), nitrogen
(N ), and water vapor.
The emissions control systems are
covered by warranties separate from
the rest of your vehicle. Read your
warranty manual for more informa-
tion. The emissions control systems are
designed and certif ied 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 f or repairs. Using lower
qualitypartsmayincreasethe
emissions f rom your vehicle.
2
2
Emissions Cont rols
Exhaust Emissions Controls Replacement Parts
PGM-FI SystemIgnit ion T iming Cont rol Syst em
Exhaust Gas Recirculat ion (EGR)Syst em
Three Way Catalytic Converter
454
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Î
.....................................
Seat Belts . 8, 15
...............
Additional Information .20
Automatic Seat Belt
...............................
Tensioners .22
.....................................
Cleaning .403
......................
Lap/Shoulder Belt .21
................................
Maintenance .23
Reminder Light and
................................
Beeper . 20, 64
...................
System Components .20
...............
Use During Pregnancy .18
...
Wearing a Lap/Shoulder Belt .15
...............................................
Seats .140
.......
Adjusting the Second Seat .142
..........
Folding the Second Seat .142
.............
Folding the Third Seat .143
........................
Head Restraints .141
.......................................
Heaters .146
......................
Position Memory .155
....................
Third Row Access .143
............................
Security System .265
Sensors
....
Driver’s Seat Position Sensor .29
Front Passenger’s Weight
.....................................
Sensors .29
......................
Impact Sensors . 25, 26 ........
Sequential SportShif t Mode .335
...............................
Serial Number .444
...........................
Service Intervals .375
...........................
Service Manual .463
.........
Service Station Procedures .317
........................................
SH-AWD .340
.......................................
Indicator .69
..
Torque Distribution Monitor .340
Shif ting the Automatic .............................
Transmission .333
.....
Shif t Lever Position Indicator .333
........................
Shif t Lock Release .338
....................................
Side Airbags .30
................................
Of f Indicator .34
......................
Side Curtain Airbags .32
Side Marker Lights, Bulb
.........................
Replacement in .398
...............................
Signaling Turns .67
.....................................
Snow Tires .414
........................
Sound System . 179, 199
Spare Tire ..............................
Inflating . 410, 418
............................
Specif ications .447
....................
Specif ications Charts .446
................................
Speed Limiter .338
................................
Speed Control .266 ...................................
Speedometer .72
..........
SRS, Additional Inf ormation .26
...
Additional Safety Precautions .35
......
Airbag System Components .24
.............................
Airbag Service .35
..
How the SRS Indicator Works .33
How Your Front Airbags
.........................................
Work .27
...
How Your Side Airbags Work .30
How Your Side Curtain Airbags
.........................................
Work .32
.............................
SRS Indicator .33,66
..
START (Ignition Key Position) .129
.......................
Starting the Engine .331
...................
Auto Control Mode .331
In Cold Weather at High
..................................
Altitude .332
................
With a Dead Battery .425
..............
State Emissions Testing .453
........
Steam Coming f rom Engine .428
Steering Wheel
................................
Adjustment .124
...........
Anti-thef t Column Lock .129
......................
Buttons . 229, 266, 277
......................
Position Memory .155
...
Stereo Sound System . 178, 179, 198
Index
VIII
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