MAZDA MODEL CX-3 2019 (in English) Repair Manual

To prevent false detection by the air bag sensor system, heed the following:
Do not use tires or wheels other than those specified for your Mazda:
Use of any tire or wheel other than those specified for your Mazda (page 9-7) is
dangerous. Use of such wheels will prevent the vehicle's accident detections system from
accurately detecting a collision or roll-over acci dent resulting in incorrect or unexpected air
bag deployment and the possibility of serious injuries.
 Do not overload your vehicle:
Overloading your vehicle is dangerous as it could prevent the air bag crash sensor system
from accurately detecting a collision or roll-over accident resulting in incorrect or
unexpected air bag deployment and the possibility of serious injuries. The gross axle weight
rating (GAWR) and the gross vehicle weight rati ng (GVWR) for your vehicle are on the Motor
Vehicle Safety Standard Label on the driver's door frame. Do not exceed these ratings.
 Do not drive the vehicle off-road:
Driving your Mazda off-road is dangerous beca use the vehicle has not been designed to do
so. Driving the vehicle off-road could prev ent the air bag crash sensor system from
accurately detecting a collision or roll-over acci dent resulting in incorrect or unexpected air
bag deployment and the possibility of serious injuries.
Do not modify a front door or leave any damage unrepaired. Always have an Authorized
Mazda Dealer inspect a damaged front door:
Modifying a front door or leaving any damage unrepaired is dangerous. Each front door has a
side crash sensor as a component of the supplemental restraint system. If holes are drilled in a
front door, a door speaker is le ft removed, or a damaged door is left unrepaired, the sensor
could be adversely affected causing it to not detect the pressure of an impact correctly during
a side collision. If a sensor does not detect a side impact correctly, the side and curtain air
bags and the front seat belt pretensioner may not operate normally which could result in
serious injury to occupants.
Do not modify the supplemental restraint system:
Modifying the components or wiri ng of the supplemental restraint system is dangerous. You
could accidentally activate it or make it inoperable. Do not make any modifications to the
supplemental restraint system. This includes inst alling trim, badges, or anything else over the
air bag modules. It also includes installing extra electrical equipment on or near system
components or wiring. An Authorized Mazda Dealer can provide the special care needed in
the removal and installation of front seats. It is important to protect the air bag wiring and
connections to assure that the bags do not accidentally deploy, and that the front passenger
occupant classification system and the seats retain an undamaged air bag connection.
Essential Safety Equipment
SRS Air Bags
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Do not place luggage or other objects under the front seats:
Placing luggage or other objects under the front seats is dangerous. The components
essential to the supplemental restraint system could be damaged, and in the event of a side
collision, the appropriate air bags may not de ploy, which could result in death or serious
injury. To prevent damage to the components e ssential to the supplemental restraint system,
do not place luggage or other objects under the front seats.
Do not operate a vehicle with damaged air bag/seat belt pretensioner system components:
Expended or damaged air bag/seat belt pret ensioner system components must be replaced
after any collision which caused them to depl oy or damage them. Only a trained Authorized
Mazda Dealer can fully evaluate these systems to see that they will work in any subsequent
accident. Driving with an expended or damaged air bag or pretensioner unit will not afford
you the necessary protection in the event of any subsequent accident which could result in
serious injury or death.
Do not remove interior air bag parts:
Removing any components such as the front se ats, 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 injuri es. Always have an Authorized Mazda Dealer
remove these parts.
Properly dispose of the air bag system:
Improper disposal of an air bag or a vehicle with live air bags in it can be extremely
dangerous. Unless all safety procedures are foll owed, injury could result. Have an Authorized
Mazda Dealer safely dispose of the air bag sy stem or scrap an air bag equipped vehicle.
Essential Safety Equipment
SRS Air Bags
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NOTE
•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 8-2).
•When an air bag deploys, a loud inflation noise can be heard and some smoke will be
released. Neither is likely to cause injury, however, the texture of the air bags may cause
light skin injuries on body parts not covered with clothing through friction.
•Should you sell your Mazda, we urge you to tell the new owner of its air bag systems and
that familiarization with all instructi ons about them, from the Owner's Manual, is
important.
•This highly-visible label is displayed which warns against the use of a rear-facing
child-restraint system on the front passenger seat.

(Except Mexico) (Mexico)
Essential Safety Equipment
SRS Air Bags
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Supplemental Restraint System Components
(With Front Passenger Occupant Classification System)

Essential Safety Equipment
SRS Air Bags
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(Without Front Passenger Occupant Classification System)

Driver/Front passenger inflators and air bags
Roll-over sensor*, crash sensors, and diagnostic module (SAS unit)
Seat belt pretensioners (page 2-19)
Front air bag sensors
Side crash sensors*
Air bag/front seat belt pretensioner system warning light (page 4-24)
Side and curtain inflators and air bags*
Front passenger air bag deactivation indicator light* (page 2-61)
Front passenger occupant classification sensor* (page 2-61)
Front passenger occupant classification module*
Essential Safety Equipment
SRS Air Bags
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How the SRS Air Bags Work
Your Mazda is equipped with the following types of SRS air bags. SRS air bags are
designed to work together with the seat belts to help to reduce injuries during an accident.
The SRS air bags are designed to provide further protection for passengers in addition to the
seat belt functions. Be sure to wear seat belts properly.
▼ Front Seat Bel
t Pretensioners
The front seat belt pretensioners are designed to deploy in mod erate or severe frontal, near
frontal collisions.
In addition, the pretensioners o perate when a side collision (only on the side in which the
collision occurs) or a roll-over accident is detected. The pretensioners operate differently
depending on what types of air bags are equipped. For more deta ils about seat belt
pretensioner operation, refer to the SRS Air Bag Deployment Cri teria (page 2-58).
▼Driver Air Bag
The driver's air bag is mounted in the steering wheel.
When air bag crash sensors detect a frontal impact of greater than moderate force, the
driver's air bag inflates quickly helping to reduce injury main
ly to the driver's head or chest
caused by directly hitting the steering wheel.
For more details about air bag de ployment, refer to "SRS Air Bag Deployment Criteria"
(page 2-58).
(With Front Passenger Occupa nt Classification System)
The driver's dual-stage air bag controls air bag inflation in t wo energy stages. During an
impact of moderate severity, the driver's air bag deploys with lesser energy, whereas during
more severe impacts, it deploys with more energy.
Essential Safety Equipment
SRS Air Bags
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▼Front Passenger Air Bag
The front passenger air bag is mounted in the front passenger dashboard.
The inflation mechanism for the fr
ont passenger air bag is the same as the driver's air bag.
For more details about air bag deployment, refer to "SRS Air Ba g Deployment Criteria"
(page 2-58).
(With Front Passenger Occupa nt Classification System)
In addition, the front passenger air bag is designed to only de ploy when the front passenger
occupant classification sensor detects a passenger sitting on t he front passenger's seat. For
details, refer to the front passenger occupant classification s ystem (page 2-61).
Essential Safety Equipment
SRS Air Bags
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▼Side Air Bags*
The side air bags are mounted in the outboard sides of the fron
t seatbacks.
When the air bag crash sensors detect a side impact of greater than moderate force, the
system inflates the side air bag only on the side in which the vehicle was hit. The side air
bag inflates quickly to reduce injury to the driver or front pa ssenger's chest caused by
directly hitting interior pa rts such as a door or window.
For more details about air bag de ployment, refer to "SRS Air Bag Deployment Criteria"
(page 2-58).
(With Front Passenger Occupa nt Classification System)
In addition, the front passenger side air bag is designed to on ly deploy when the front
passenger occupant classification sensor detects a passenger si tting on the front passenger's
seat. For details, refer to the f ront passenger occupant classification system (page 2-61).

▼ Curtain Air Bags*
The curtain air bags are mounted in the front and rear window p
illars, and the roof edge
along both sides.
When the air bag crash sensors d etect a side impact of greater than moderate force, the curtain air
bag inflates quickly and helps to reduce injury mainly to the r ear outboard passenger's head
caused by directly hitting interior parts such as a door or win dow.
For more details about air bag deployment, refer to "SRS Air Bag Deployment Criteria"
(page 2-58).
Essential Safety Equipment
SRS Air Bags
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In a side impact:
Greater than moderate impact to one side of the vehicle will cause the curtain air bag on that
side only to inflate.

Only one side curtain air bag will deploy on the
side of the vehicle that receives the force of an
impact.
(With Front Passenger Occupa nt Classification System)
In a roll-over:
In response to a vehicle roll-over, both curtain air bags infla te.

Both curtain air bags will deploy after
the roll-over accident is detected.
▼ Warning Light/Beep
A system malfunction or operation conditions are indicated by a
warning.
Refer to Warning/Indicator Lights on page 4-24.
Refer to Warning Sound is Activated on page 7-43.
Essential Safety Equipment
SRS Air Bags
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SRS Air Bag Deployment Criteria
This chart indicates the applicable SRS equipment that will deploy depending on the type of
collision.
(The illustrations are the representative cases of collisions.)
SRS equip- ment Types of collision
A severe frontal/near frontal colli- sion A severe side colli-
sion
*2A roll-over/nearroll-over*3A rear collision
Front seat
belt preten- sioner X*1 (both sides)
X*1 (impact side
only) X*1 (both sides)
No air bag and
front seat belt pre-
tensioner will be
activated in a rear
collision.
Driver air
bag X
Front pas- senger air bag X
*1
Side air bag*X*1 (impact side
only)
Curtain air bag
*X (impact side on- ly) X (both sides)
X: The SRS air bag equipment is
designed to deploy in a collision.*1(With Front Passenger Occupant Classification System)
The front passenger front and side air bags and the seat belt pretensioner are designed to deploy when the front
passenger occupant cla ssification sensor detects a passenger si tting on the front passenger's seat.
*2(With Side/Curtain Air Bags)
In a side collision, the seat be lt pretensioners and the side/c urtain air bags deploy (only on the side in which the
collision occurs).
*3 (With Front Passenger Occupant Classification System)
In a roll-over accident, the s eat belt pretensioners and the cu rtain air bags deploy.
NOTE
In a frontal offset collision, the equipp ed air bags and pretensioners may all deploy
depending on the direction, angle, and rate of impact.
Essential Safety Equipment
SRS Air Bags
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