sensor MAZDA MODEL 3 HATCHBACK 2004 (in English) User Guide

2-46
Essential Safety Equipment
SRS Air Bags
Form No. 8S18-EA-03I
The front passenger air bag deactivation indicator light illuminates or is off under the
following conditions:
*If the front passenger seat belt is buckled, the front passenger air bag deactivation
indicator light illuminates, however this does not indicate a malfunction.
If the front passenger air bag deactivation indicator light does not illuminate when the
ignition switch is turned to the ON position and does not illuminate as indicated in the
above chart, do not allow a child to sit in the front passenger seat and consult an Authorized
Mazda Dealer as soon as possible. The system may not work properly in an accident.
Total seated weight on
the front passenger seatFront passenger air bag
deactivation indicator
lightFront passenger front and
side air bagsSeat belt pretensioner
system
Empty (Not occupied)
*OFF OFF OFF
Less than approx. 30 kg
(66 lb)ON OFF OFF
Approx. 42 kg (93 lb) or
moreOFF ON ON
Decreasing the Total Seated Weight on the Front Passenger Seat:
When an adult or large child sits on the front passenger seat, decreasing the total
seated weight on the front passenger seat from the total seated weight of
approximately 42 kg (93 lb) required for air bag deployment is dangerous. The front
passenger seat weight sensors will detect the reduced total seated weight condition and
the front passenger front and side air bags and seat belt pretensioner system will not
deploy during an accident. The front passenger will not have the supplementary
protection of the air bag, which could result in serious injury. Decreasing the total
seated weight on the front passenger seat from the total seated weight of
approximately 42 kg (93 lb) could result in an air bag not deploying under the
following conditions, for example:
•A rear passenger pushes up on the front passenger seat with the feet.
•Luggage or other items placed under the front passenger seat or between the front
passenger seat and driver seat that push up the front passenger seat bottom.
•The front passenger seat occupant sits in a manner that does not place the entire
weight of the occupant on the seat such as by sitting too close to the door, grasping
the rim of the moonroof.
•The front passenger seatback contacts the rear seat.
•Any accessories which might decrease the total seated weight on the front
passenger seat are attached to the front passenger seat.
WARNING
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Essential Safety Equipment
SRS Air Bags
Form No. 8S18-EA-03I
Increasing the Total Seated Weight on the Front Passenger Seat:
When an infant or small child sits on the front passenger seat, increasing the total
seated weight on the front passenger seat from the total seated weight of
approximately 30 kg (66 lb) is dangerous. The front passenger seat weight sensors will
detect the increased total seated weight, which could result in the unexpected
deployment of the front passenger front and side air bags and seat belt pretensioner
system in an accident and serious injury. Increasing the total seated weight on the
front passenger seat from the total seated weight of approximately 30 kg (66 lb) could
result in the front passenger front and side air bags and seat belt pretensioner system
deployment in an accident under the following conditions, for example:
•Luggage or other items are placed on the seat with the child in the child-restraint
system.
•A rear passenger or luggage push or pull down on the front passenger seatback.
•A rear passenger steps on the front passenger seat rails with the feet.
•Luggage or other items are placed on the seatback or hung on the head restraint.
•The seat is washed.
•Liquids are spilled on the seat.
•The front passenger seat is moved backward, pushing into luggage or other items
placed behind it.
•The front passenger seatback contacts the rear seat.
•Luggage or other items are placed between the front passenger seat and driver seat.
•Any accessories which might increase the total seated weight on the front
passenger seat are attached to the front passenger seat.
•To assure proper deployment of the front air bag and to prevent damage to the sensors
in the front seat bottoms:
Do not place sharp objects on the front seat bottoms or leave heavy luggage on them.
Do not spill any liquids on the front seats or under the front seats.
•To allow the sensors to function properly, always perform the following:
Adjust the front seats as far back as possible and always sit upright against the
seatbacks with seat belts worn properly.
If you place your child on the front passenger seat, secure the child-restraint system
properly and slide the front passenger seat as far back as possible (page 2-29).
WARNING
CAUTION
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2-48
Essential Safety Equipment
SRS Air Bags
Form No. 8S18-EA-03I
Driver and front passenger buckle switches
The buckle switches on the front seat belts detect whether or not the front seat belts are
securely fastened and further control the deployment of the air bags on the front seats.

How the Side and Curtain Air Bags Work*
When air bag crash sensors detect a side impact of greater than moderate force, an
electrical current is sent to the inflators.
Gases are produced to inflate the side and curtain air bags and after the inflation, the side
and curtain air bags quickly deflate.
The side and curtain air bags will function only once. After that, the side and curtain air
bags will not work again and must be replaced.
Only an Authorized Mazda Dealer can
replace the systems.
NOTE
•The system requires about 10 seconds to alternate between turning the front
passenger front and side air bags and seat belt pretensioner system on or off.
•The front passenger air bag deactivation indicator light may illuminate repeatedly if
luggage or other items are put on the front passenger seat, or if the temperature of the
vehicle’s interior changes suddenly.
•The front passenger air bag deactivation indicator light may illuminate for 10 seconds
if the total seated weight on the front passenger seat changes.
•
If the front passenger air bag deactivation indicator light does not illuminate after
installing a child-restraint system on the front passenger seat, install the child-restraint
system on the rear seat and consult an Authorized Mazda Dealer as soon as possible.
To prevent damage to the side and curtain air bag wiring, don’t place luggage or other
objects under the front seats.
The side air bag will deploy only on the side
the vehicle receives the force of the impact.The curtain air bag will deploy only on the side
the vehicle receives the force of the impact.
CAUTION
*Some models.
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Essential Safety Equipment
SRS Air Bags
Form No. 8S18-EA-03I

Air Bag Activation/Deactivation
Front air bag activation
A greater than moderate impact will cause the front air bags to inflate in the following cases:
If the front passenger seat weight sensors detect a total seated weight on the front
passenger seat of less than approximately 42 kg (93 lb), the front passenger front and
side air bags and seat belt pretensioner may not inflate (page 2-44).
CAUTION
Hitting a solid wall straight on at greater
than about 22 km/h (14 mph).Frontal impact within about a 30 degree
range from head-on to the vehicle.
Driving into a big hole or hitting the far
side of a hole. Hitting a curb, pavement edge or hard
object.
Landing hard or the vehicle falling.
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Essential Safety Equipment
SRS Air Bags
Form No. 8S18-EA-03I

Constant Monitoring
The following components of the air bag
systems are monitored by a diagnostic
system:
•SAS unit
•Front air bag sensor
•Air bag modules
•Side crash sensor
*
•Front seat belt pretensioners
•Related wiring
•Driver seat slide position sensor
•Front passenger seat weight sensors
•Driver and front passenger seat belt
buckle switches
The diagnostic module continuously
monitors the system’s readiness. This
begins when the ignition switch is turned
to the ON position and continues while
the vehicle is being driven.

Air Bag/Front Seat Belt
Pretensioner System Warning
Light
If the air bag/front seat belt pretensioner
system is normal, the warning light
illuminates when the ignition switch is
turned to the ON position or after the
engine is cranked. After about 6 seconds it
goes out.
A system malfunction is indicated when
the warning light constantly flashes,
illuminates or doesn’t illuminate at all
when the ignition switch is turned to the
ON position. If any of these occur, consult
an Authorized Mazda Dealer as soon as
possible. The system may not work in an
accident.
Self-Servicing the Air Bag/
Pretensioner Systems:
Self-servicing or tampering with the
systems is dangerous. An air bag/
pretensioner could accidentally
activate or become disabled. This
could cause serious injuries. Never
tamper with the systems and always
have an Authorized Mazda Dealer
perform all servicing and repairs.
WARNING
*Some models.
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Essential Safety Equipment
SRS Air Bags
Form No. 8S18-EA-03I

Air Bag/Front Seat Belt
Pretensioner System Warning
Beep
If a malfunction is detected in the air bag/
front seat belt pretensioner systems and
the warning light, a warning beep sound
will be heard for about 5 seconds every
minute.
The air bag and seat belt pretensioner
system warning beep sound will continue
to be heard for approximately 35 minutes.
Have your vehicle inspected at an Mazda
Dealer as soon as possible.

Maintenance
The air bag systems do not require regular
maintenance. But if any of the following
occurs, take your vehicle to an Authorized
Mazda Dealer as soon as possible:
•The air bag system warning light
flashes.
•The air bag system warning light
illuminates.
•The air bag system warning light does
not illuminate when the ignition switch
is turned to the ON position.
•The air bags inflate.
•Front passenger air bag deactivation
indicator light does not illuminate
when the ignition switch is turned to
the ON position or does not illuminate
as indicated in the chart. For more
details about this indicator light and
this chart, refer to "Front passenger
seat weight sensors (page 2-44)".
Air Bag/Front Seat Belt Pretensioner
System Warning Beep:
Driving the vehicle with the air bag/
front seat belt pretensioner system
warning beep sounding is dangerous.
In a collision, the air bags and the
front seat belt pretensioner system
will not deploy and this could result in
death or serious injury.
Do not drive the vehicle with the air
bag/front seat belt pretensioner
system warning beep sounding.
Contact an Authorized Mazda Dealer
to have the vehicle inspected as soon
as possible.
WARNING
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Essential Safety Equipment
SRS Air Bags
Form No. 8S18-EA-03I
Damaged Air Bag System
Components:
Driving with damaged air bag system
components is dangerous. A collision,
even one not strong enough to inflate
the air bags, could damage the system
components. If there was a
subsequent collision, a damaged
component would not inflate the air
bags. Always have an Authorized
Mazda Dealer inspect the air bag
systems after a collision.
Removing Interior Parts:
Removing any components such as
the front seats (if side air bags are
equipped), front dashboard, the
steering wheel or parts on the front
and rear window pillars and along the
roof edge, containing air bag parts or
sensors is dangerous. These parts
contain essential air bag components.
The air bag could accidentally
activate and cause serious injuries.
Always have an Authorized Mazda
Dealer remove these parts.
Air Bag Disposal:
Improper disposal of an air bag or a
vehicle with live air bags in it can be
extremely dangerous. Unless all
safety procedures are followed, injury
can result. Ask an Authorized Mazda
Dealer how to safely dispose of an air
bag or how to scrap an air bag
equipped vehicle.
WARNINGNOTE
If it becomes necessary to have the
components or wiring system for the
supplementary restraint system
modified to accommodate a person
with certain medical conditions in
accordance with a certified physician,
contact an Authorized Mazda Dealer,
refer to "Customer Assistance
(U.S.A.)" (page 9-2).
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4-2
Before Driving Your Mazda
Form No. 8S18-EA-03I
Fuel and Engine Exhaust Precautions
Vehicles with catalytic converters or oxygen sensors must use ONLY UNLEADED FUEL,
which will reduce exhaust emissions and keep spark plug fouling to a minimum.
Your Mazda will perform best with fuel listed in the table.
*U.S. federal law requires that octane ratings be posted on gasoline station pumps.
Fuel with a rating lower than 87 octane (91 RON) could cause the emission control system
to lose effectiveness. It could also cause engine knocking and serious engine damage.
Gasoline blended with oxygenates such as alcohol or ether compounds are generally
referred to as oxygenated fuels. The common gasoline blend that can be used with your
vehicle is ethanol blended at no more than 10%. Gasoline containing alcohol, such as
ethanol or methanol, may be marketed under the name "Gasohol".
Vehicle damage and drivability problems resulting from the use of the following may not
be covered by the Mazda warranty.
•Gasohol containing more than 10% ethanol.
•Gasoline or gasohol containing methanol.
•Leaded fuel or leaded gasohol.
Fuel Requirements
Fuel Octane Rating* (Anti-knock index)
Regular unleaded fuel 87 [ (R+M)/2 method] or above (91 RON or above)
•USE ONLY UNLEADED FUEL.
Leaded fuel is harmful to the catalytic converter or the oxygen sensor. The lead will
accumulate on the oxygen sensor and the catalyst inside the converter. This will result
in a malfunction of the emission control system, causing poor performance.
•Your vehicle can only use oxygenated fuels containing no more than 10% ethanol by
volume. Damage to your vehicle may occur when ethanol exceeds this
recommendation, or if the gasoline contains any methanol. Stop using gasohol of any
kind if your vehicle engine is performing poorly.
•Never add fuel system additives. Never add cleaning agents other than those specified
by Mazda. Other cleaning agents and additives may damage the system. Consult an
Authorized Mazda Dealer.
CAUTION
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5-22
Driving Your Mazda
Starting and Driving
Form No. 8S18-EA-03I
The tire pressure monitoring system
(TPMS) monitors the pressure for each
tire.
If tire pressure is too low or too high in
one or more tires, the system will inform
the driver via the warning light in the
instrument panel and by the warning beep
sound.
The tire pressure sensors installed on each
wheel send tire pressure data by radio
signal to the receiver unit in the vehicle.
TPMS does not alleviate your need to
check the pressure and condition of all
four tires before you drive each day.
Tire Pressure Monitoring
System*
Tire pressure sensors
•When the tire pressure monitoring
system warning light is lit, one or
more of your tires is significantly
under-inflated. 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.
Driving on a significantly under-
inflated tire causes the tire to
overheat and can lead to tire failure.
Under-inflation also reduces fuel
efficiency and tire tread life, and
may affect the vehicle’s handling
and stopping ability. Each tire,
including the spare, should be
checked monthly when cold and set
to the recommended inflation
pressure as specified in the vehicle
placard and owner’s manual.
•To avoid false readings, the system
samples for a little while before
indicating a problem. As a result it
will not instantaneously register a
rapid tire deflation or blow out.
NOTE
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.
CAUTION
*Some models.
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Driving Your Mazda
Starting and Driving
Form No. 8S18-EA-03I

Tire Pressure Monitoring System
Warning Light
This warning light illuminates for a few
seconds when the ignition switch is turned
to the ON position.
Thereafter, the warning light illuminates
when tire pressure is too low or too high
in one or more tires, and flashes when
there is a system malfunction.Warning light illuminates/Warning
beep sounds
When the warning light illuminates, and
the warning beep sound is heard (about 3
seconds), tire pressure is too low or too
high in one or more tires.
Adjust the tire pressure to the correct tire
pressure at an Authorized Mazda Dealer
or the nearest service station. Refer to the
specification charts (page 10-8).
If the warning light illuminates again even
after the tire pressures are adjusted, there
may be a tire puncture. Replace the
punctured tire with the temporary spare
tire (page 7-6).
Vehicle Handling When Tire Pressure
Monitoring System Warning Light
Illuminates/Flashes:
When the tire pressure monitoring
system warning light illuminates or
flashes, or the tire pressure warning
beep sound is heard, it is dangerous to
drive the vehicle at high speeds, or
perform sudden maneuvering or
braking. Vehicle drivability could
worsen and result in an accident.
When the tire pressure monitoring
system warning light illuminates or
flashes, or the tire pressure warning
beep sound is heard, decrease vehicle
speed immediately and avoid sudden
maneuvering and braking. Have the
system and tires checked or perform
the appropriate repair as soon as
possible.
WARNING
Ignoring the Warning Light:
Ignoring the warning light is
dangerous, even if you know why it is
illuminated. Have the problem taken
care of as soon as possible before it
develops into a more serious situation
that could lead to tire failure and a
dangerous accident.
When replacing/repairing the tires or
wheels or both, have the work done by
an Authorized Mazda Dealer, or the
tire pressure sensors may be damaged.
WARNING
CAUTION
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