weight sensor Acura MDX 2011 Owner's Manual

Seat Belt e-pretensionersOn models with Collision MitigationBraking System ™(CMBS ™)For added safety, the front seat belts
are equipped with e-pretensioners
that work in combination with the
collision mitigation braking system ™
(CMBS ™) (see page 457) and the
brake pedal assist function (see page
454). If your vehicle gets too close to the
vehicle ahead of it in your lane, the
driver's e-pretensioner slightly
retracts the seat belt to alert the
driver of the approaching vehicle. If a
collision with the vehicle in front of
you is likely, the e-pretensioners on
both front seats retract the seat belts
with enough force to properly
restrain you and your front
passenger. After they activate, the e-
pretensioners release the retracted
seat belts.
To get the full benefit of the e-
pretensioners, you and your front
passenger must sit normally in your
seats and wear your seat belts
properly (see page 16).
The e-pretensioners do not activate
when the vehicle stability assist
(VSA) off indicator on the instrument
panel is on.If the automatic seat belt tensioners
are activated by a collision, both front
seat belts and all related components
must be replaced (see page 25). If
only the e-pretensioners were
activated, no components need to be
replaced.
In addition, the front passenger's e-
pretensioner does not activate when
the passenger's airbag is
automatically turned off because the
weight sensor detects a child in the
front passenger's seat.Additional Information About Your Seat Belts2410/06/29 11:59:04 11 ACURA MDX MMC North America Owner's M 50 31STX640 enu

Airbag System Componentsꭧ: On models with CMBS(5) Side Airbags
(6) Driver's Seat Position Sensor
(7) Front Passenger's Weight Sensors
(8) Passenger Airbag Off Indicator
(9) Occupant Position Detection System
(OPDS) Sensors
(10) Front Passenger's Weight Sensors/OPDS
Sensors Control Unit
(11) SRS Indicator
(1) (11)
(8)
(6) (2)
(3)
(5)
(10)
(9)
(7)
(4)
(5)
(4)
(1) Driver's Front Airbag
(2) Passenger's Front Airbag
(3) Control Unit
(4) Front Seat Belt Tensioners/Seat Belte-pretensioners
ꭧ
(12) e-pretensioner Control Unit
ꭧ
(13) Front Impact Sensors
(14) Side Curtain Airbags
(15) Side Impact Sensors (First)
(16) Side Impact Sensors (Second)
(17) Safing Sensor
(13) (13)
(14)
(15) (16) (16)
(17)
(12)
(14)
Additional Information About Your Airbags2610/06/29 11:59:04 11 ACURA MDX MMC North America Owner's M 50 31STX640 enu

●
Weight sensors that monitor the
weight on the front passenger's
seat. If the weight is about 65 lbs
(29 kg) or less (the weight of an
infant or small child), the
passenger's front airbag will be
turned off (see page 30).
●
A rollover sensor that can detect if
your vehicle is about to roll over
and signal the control unit to
deploy both side curtain airbags
(see page 34).
●
A sophisticated electronic system
that continually monitors and
records information about the
sensors, the control unit, the
airbag activators, the seat belt
tensioners, and driver and front
passenger seat belt use when the
ignition switch is in the ON (II)
position.
●
An indicator on the instrument
panel that alerts you to a possible
problem with your airbag system
components (see page 35).
●
An indicator on the instrument
panel that alerts you that the
passenger's side airbag has been
turned off (see page 35).
●
An indicator on the dashboard that
alerts you that the passenger's
front airbag has been turned off
(see page 36).
●
Emergency backup power in case
your vehicle's electrical system is
disconnected in a crash.
Additional Information About Your Airbags2810/06/29 11:59:04 11 ACURA MDX MMC North America Owner's M 50 31STX640 enu

The driver's advanced front airbag
system includes a seat position
sensor under the seat. If the seat is
too far forward, the airbag will inflate
with less force, regardless of the
severity of the impact.
If there is a problem with the sensor,
the SRS indicator will come on, and
the airbag will inflate in the normal
manner regardless of the driver's
seating position.
The passenger's advanced front
airbag system has weight sensors
under the seat. Although Acura does
not encourage carrying an infant or
small child in front, if the sensors
detect the weight of an infant or
small child (up to about 65 lbs or 29
kg), the system will automatically
turn the passenger's front airbag off.Be aware that objects placed on the
passenger's seat can also cause the
airbag to be turned off.
When the passenger airbag gets
turned off by the weight sensors, a
‘‘
passenger airbag off ’’indicator in
the center of the dashboard comes
on (see page 36).
If the weight sensors detect there is
no passenger in the front seat, the
airbag is automatically turned off.
However, the passenger airbag off
indicator in this situation will not
come on.
DRIVER'S
SEAT
POSITION
SENSOR
PASSENGER'S
SEAT
WEIGHT
SENSOR
CONTINUED
Additional Information About Your Airbags
31
Driver and Passenger Safety
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To ensure that the passenger's
advanced front airbag system will
work properly,
do not do anything
that would increase or decrease the weight on the front passenger's seat.
This includes:●
A second-row passenger pushing
or pulling on the back of the front
passenger's seat.
●
Moving the front seat forcibly back
against cargo on the seat or floor
behind it.
●
Hanging heavy items on the front
passenger seat, or placing heavy
items in the seat-back pocket.
●
Moving the front passenger's seat
or seat-back forcibly back against
the folded right-side second-row
seat.
●
Second-row seat passenger should
not wedge objects or intentionally
force their feet under the front
passenger seat. Also, make sure the floor mat behind
the front passenger's seat is hooked
to the floor mat anchor (see page
529). If it is not, the mat may
interfere with the proper operation of
the sensors and operation of the seat.
How Your Side Airbags Work
If you ever have a moderate to severe
side impact, sensors will detect rapid
acceleration and signal the control
unit to instantly inflate either the
driver's or the passenger's side
airbag and activate the seat belt
tensioner on the affected side.
Additional Information About Your Airbags3210/06/29 11:59:04 11 ACURA MDX MMC North America Owner's M 50 31STX640 enu

How the Passenger Airbag Off
Indicator WorksThis indicator alerts you that the
passenger's front airbag has been
shut off because weight sensors
detect about 65 lbs (29 kg) or less
(the weight of an infant or small
child) on the front passenger's seat.
It does
not mean
there is a problem
with the airbag. Be aware that objects placed on the
front seat can cause the indicator to
come on.
If no weight is detected on the front
seat, the airbag will be automatically
shut off. However, the indicator will
not come on.
The passenger airbag off indicator
may come on and off repeatedly if the
total weight on the seat is near the
airbag cutoff threshold.
If an adult or teenage passenger is
riding in front, move the seat as far to
the rear as possible, and have the
passenger sit upright and wear the
seat belt properly.
If the indicator comes on with no
front seat passenger and no objects
on the seat, or with an adult riding
there, something may be interfering
with the weight sensors. Look for
and remove:
●
Any items under the front
passenger's seat.
●
Any object(s) hanging on the seat
or in the seat-back pocket.
●
Any object(s), such as a folded-
down back seat, that are touching
the rear of the seat-back.
If no obstructions are found, have
your vehicle checked by a dealer as
soon as possible.
PASSENGER AIRBAG OFF INDICATOR U.S.CanadaAdditional Information About Your Airbags3610/06/29 11:59:04 11 ACURA MDX MMC North America Owner's M 50 31STX640 enu

Airbag Service
Your airbag systems are virtually
maintenance free, and there are no
parts you can safely service.
However, you must have your
vehicle serviced if:●
An airbag ever inflates.
Any airbag
that has deployed must be
replaced along with the control
unit and other related parts. Any
seat belt tensioner that activates
must also be replaced.
Do not try to remove or replace
any airbag by yourself. This must
be done by an authorized dealer or
a knowledgeable body shop.
●
The SRS indicator alerts you to a
problem.
Take your vehicle to an
authorized dealer as soon as
possible. If you ignore this
indication, your airbags may not
operate properly.
●
If your vehicle has a moderate to
severe impact.
Even if your airbags
do not inflate, your dealer should
inspect the driver's seat position
sensor, the front passenger's
weight sensors, the front seat belt
tensioners, and all seat belts and
their anchors worn during a crash
to make sure they are operating
properly.
Additional Information About Your Airbags
37
Driver and Passenger Safety
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Additional Safety Precautions●
Do not attempt to deactivate yourairbags.
Together, airbags and seat
belts provide the best protection.
●
Do not tamper with airbag components or wiring for any
reason.
Tampering could cause
the airbags to deploy, possibly
causing very serious injury.
●
Do not expose the front
passenger's seat-back to liquid.
If
water or another liquid soaks into
a seat-back, it can prevent the side
airbag cutoff system from working
properly.
●
Do not remove or modify a front seat without consulting your
dealer.
This could make the
driver's seat position sensor or the
front passenger's weight sensors
ineffective. If it is necessary to
remove or modify a front seat to
accommodate a person with
disabilities, first contact Acura
Client Services. In the US call 800-
382-2238 and in Canada call 888-9-
ACURA-9.
Additional Information About Your Airbags3810/06/29 11:59:04 11 ACURA MDX MMC North America Owner's M 50 31STX640 enu

Adjusting the Second Row SeatsTo change the seat-back angle of the
seats in the second row, pull up on
the handle on the outside of the seat-
back, and push the seat-back.
Overall, the seat-back has six
different positions.Folding the Second Row Seats
The left and right halves can be
folded separately.
1. To unlatch the detachable anchor
before folding the seat-back, insert
the latch plate into the slot on the
side of the anchor buckle (see
page 154) and allow the seat belt to
retract. Store the detachable
anchor and seat belt latch plates in
the retractor housing.
2. Lower the head restraints to their lowest positions.
3. Pull up the handle on the outside of the seat-back.
4. Fold the seat-back forward.
Reverse this procedure to return the
seat to the upright position. Make
sure the seat is locked securely
before driving. Make sure that the folded seat-back
does not press against the front
passenger's seat, as this could cause
the weight sensors to work
improperly.
HANDLE
Seats15210/06/29 11:59:04 11 ACURA MDX MMC North America Owner's M 50 31STX640 enu

Carrying Cargo in the Passenger
Compartment●
Store or secure all items that could
be thrown around and hurt
someone during a crash.
●
Be sure items placed on the floor
behind the front seats cannot roll
underneath and interfere with the
proper operation of the seats, the
sensors under the seats, or the
driver's ability to operate the
pedals.
Also, keep all cargo below the
bottom of the windows. If it is
higher, it could interfere with the
proper operation of the side
curtain airbags.
●
Keep the glove box closed while
driving. If it is open, a passenger
could injure their knees during a
crash or sudden stop.Carrying Cargo in the Cargo Area
or on a Roof Rack
●
Distribute cargo evenly on the
floor 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 you fold down the second or
third row seats, tie down items that
could be thrown about the vehicle
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
carbon monoxide
poisoning, follow the instructions
on page 60.
●
If you carry any items on a roof
rack, be sure the total weight of
the rack and the items does not
exceed 165 lbs (75 kg).
CONTINUED
Carrying Cargo
431
Before Driving
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