2019 MAZDA MODEL CX-3 sensor

The front passenger front and side air bags and seat belt pretensioner systems will deactivate
if the front passenger air bag deactivation indicator light turns on.
CAUTION
 To assure proper deployment of the front air bag and to prevent damage to the sensor in
the front seat cushion:
 Do not place sharp objects on the front seat cushion 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 possibl e 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 2-34).
NOTE
•The system requires about 10 seconds to alte rnate between turning the front passenger
front and side air bags and seat belt pretensioner system on or off.
•The front passenger air bag deactivation indicato r light may turn on 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 indicato r light may turn on for 10 seconds if the
electrostatic capacity on the front passenger seat changes.
•The air bag/front seat belt pretensioner system warning light might turn on if the front
passenger seat receives a severe impact.
•If the front passenger air bag deactivation indicator light does not turn on after installing
a child-restraint system on the front passenger seat, first, re-install your child-restraint
system according to the procedure in this owner's manual. Then, if the front passenger air
bag deactivation indicator light still does not tu rn on, install the child-restraint system on
the rear seat and consult an Authorized Mazda Dealer as soon as possible.
•If the front passenger air bag deactivation i ndicator light turns on when an occupant is
seated directly in the front passenger seat, have the passenger re-adjust their posture by
sitting with their feet on the floor, and th en re-fastening the seat belt. If the front
passenger air bag deactivation i ndicator light remains turned on, move the passenger to
the rear seat. If sitting in the rear seat is no t possible, slide the front passenger seat as far
back as possible. Consult an Authorized Mazda Dealer as soon as possible.
Essential Safety Equipment
SRS Air Bags
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Constant Monitoring
The following components of the air bag systems are monitored by a diagnostic system:

•Front air bag sensors
•Crash sensors, and diagnostic module (SAS unit)
•Side crash sensors
•Air bag modules
•Front seat belt pretensioners
•Air bag/Front seat belt pretensioner system warning light
•Related wiring
(With Front Passenger Occupa nt Classification System)
•Front passenger occupant classification sensor
•Front passenger occupant classification module
•Front passenger air bag deactivation indicator light

The diagnostic module continuously monitors the system's readin ess. This begins when the
ignition is switched ON and contin ues while the vehicle is being driven.
Essential Safety Equipment
SRS Air Bags
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Fuel and Engine Exhaust Precautions
▼Fuel Requirements
Vehicles with catalytic converters or oxygen sensors must use O
NLY UNLEADED FUEL,
which will reduce exhaust emissions and keep spark plug fouling to a minimum.

This vehicle will per form best with fuel listed in the table.
Fuel
Octane Rating* (Anti-knock index)
Regular unleaded fuel 87 [(R
M)/2 method] or above (91 RON or above)
∗U.S. federal law requires that
octane ratings be posted on gaso line station pumps.
Fuel with a rating lower than 87 octane (91 RON) will negatively affect the emission control
system performance and could also cause engine knocking and ser ious engine damage.
CAUTION
USE ONLY UNLEADED FUEL.
Leaded fuel is harmful to the catalytic co nverter and oxygen sensors and will lead to
deterioration of the emission control system and or failures.
 This vehicle can only use oxygenated fuels containing no more than 10 % ethanol by
volume. Damage to the 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, otherwise the emission control system could be damaged.
Consult an Authorized Mazda Dealer for details.
Gasoline blended with oxygenates such as alcohol or ether compo unds 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 conta ining alcohol, such as
ethanol or methanol, may be marketed under the name "Gasohol".

Vehicle damage and drivability pr oblems resulting from the use of the following may not be
covered by the warranty.
•Gasohol containing more than 10 % ethanol.
•Gasoline or gasohol containing methanol.
•Leaded fuel or leaded gasohol.
Before Driving
Fuel and Emission
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▼Rearview Mirror
WA R N I N G
Do not stack cargo or objects higher than
the seatbacks:
Cargo stacked higher than the seatbacks is
dangerous. It can block your view in the
rearview mirror, which might cause you to
hit another car when changing lanes.
Rearview mirror adjustment
Before driving, adjust
the rearview mirror
to center on the scene through the rear
window.

NOTE
For the manual day/night mirror, perform
the adjustment with the day/night lever in
the day position.
Reducing glare from headlights
Manual day/night mirror
Push the day/night lever forward for day
driving. Pull it back to reduce glare of
headlights from vehicles at the rear.

Day/Night lever
Day
Night
Auto-dimming mirror
The auto-dim ming mirror automatically
reduces the glare of headlights from
vehicles at the rear when the ignition is
switched ON.
NOTE
•Do not use glass cleaner or suspend
objects on or around the light sensor.
Otherwise, light sensor sensitivity will
be affected and may not operate
normally.

Light sensor
•The auto-dimming function is canceled
when the ignition is switched ON and
the selector lever is in reverse (R).
Before Driving
Mirrors
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i-ACTIV AWD................................. 4-75i-ACTIV AWD Operation
*.........4-75
Power Steering................................. 4-76 Power Steering............................4-76
i-ACTIVSENSE............................... 4-77 i-ACTIVSENSE
*........................4-77
Adaptive Front Lighting System
(AFS)
*........................................ 4-80
High Beam Control System
(HBC)
*........................................4-81
Lane Departure Warning System
(LDWS)
*.................................... 4-84
Blind Spot Monitoring (BSM)
*.........
.................................................... 4-90
Traffic Sign Recognition System
(TSR)
*........................................ 4-96
Distance Recognition Support
System (DRSS)
*....................... 4-102
Rear Cross Traffic Alert (RCTA)
*.....
.................................................. 4-104
Mazda Radar Cruise Control with
Stop & Go function (MRCC with
Stop & Go function)
*............... 4-107
Advanced Smart City Brake Support
(Advanced SCBS)
*................... 4-119
Smart City Brake Support
(SCBS)
*.................................... 4-123
Smart Brake Support (SBS)
*.... 4-127
Forward Sensing Camera (FSC)
*......
.................................................. 4-130
Radar Sensor (Front)
*.............. 4-135
Radar Sensors (Rear)
*.............. 4-138
Cruise Control............................... 4-140 Cruise Control
*.........................4-140
Tire Pressure Monitoring
System.............................................4-144 Tire Pressure Monitoring System
*.....
.................................................. 4-144
Rear View Monitor....................... 4-148 Rear View Monitor
*................. 4-148
4-2*Some models.
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▼Dashboard Illumination
(Without auto-light control)
When the position lights are turned on
with the ignition switched ON, the
brightness of the dashboard illumination is
dimmed.
(With auto-light control)
When the position lights are turned on
with the ignition switched ON, the
brightness of the dashboard illumination is
dimmed. However, when the light sensor
detects that the surrounding area is bright
such as when the position lights are turned
on in the daytime, the dashboard
illumination does not dim.
NOTE
•(With auto-light control)
When the ignition is
switched ON in the
early evening or at dusk, the dashboard
illumination is dimmed for several
seconds until the light sensor detects the
brightness of the surrounding area,
however, the dimmer may cancel after
the brightness is detected.
•When the position lights are turned on,
the position lights i ndicator light in the
instrument cluster turns on.
Refer to Headlights on page 4-43.
The brightness of the instrument cluster
and dashboard illuminations can be
adjusted by rotating the knob.
•The brightness decreases by rotating the
knob to the left. A beep sound will be
heard when the knob has been rotated to
the maximum dim position.
•The brightness increases by rotating the
knob to the right.
Dim
Bright
Function for cancelling illumination
dimmer
The illumination dimmer can be canceled
by rotating the dashboard illumination
knob to the right until a beep sound is
heard while the instrument cluster is
dimmed with the ignition switched ON. If
the instrument clust er's visibility is
reduced due to glare from surrounding
brightness, cancel the illumination
dimmer.
NOTE
•When the illumination dimmer is
canceled, the instrument cluster cannot
be dimmed even if the position lights are
turned on.
•When the illumination dimmer is
canceled, the screen in the center
display switches to constant display of
the daytime screen.
When Driving
Instrument Cluster and Display
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Active Driving Display*
Optical receiver
Mirror
Combiner
WA R N I N G
Always adjust the display brightness and position with the vehicle stopped:
Adjusting the display brightness and position wh ile driving the vehicle is dangerous as doing
so could distract your attention from the road ahead and lead to an accident.
CAUTION
 Do not try to adjust the angle or open/close the active driving display manually.
Fingerprints on the display will make it
difficult to view and using excessive force when
operating it could cause damage.
 Do not place objects in the vicinity of the acti ve driving display. The active driving display
may not operate or any interference with its operation could cause damage.
 Do not place beverages near the active driving display. If water or other liquids are splashed
on the active driving displa y, it could cause damage.
 Do not place objects above the active driving display or apply stickers to the dust-proof
sheet/optical receiver as they will cause interference.
 A sensor is integrated to control the display's luminosity. If the optical receiver is covered,
the display's luminosity will lower making the display
difficult to view.
 Do not allow intense light to hit the optical receiver. Otherwise, it could cause damage.
NOTE
•Wearing polarized sunglasses will reduce the visibility of the active driving display due to
the characteristics of the display.
•If the battery has been removed and re-installed or the battery voltage is low, the adjusted
position may deviate.
When Driving
Instrument Cluster and Display
*Some models.4-21
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▼Wrench Indicator Light
When the ignition is switched ON, the
wrench indicator light turns on and then
turns off after a few seconds.

The wrench indicator
light turns on when
the preset maintenance period arrives.
Verify the content and perform
maintenance.
Refer to Maintenance Monitor on page 6-
15.
▼ Low Engine Coolant Temperature
Indicator Light (Blue)
The light illuminates continuously when
the engine coolant temperature is low and
turns off after the engine is warm.
If the low engine coolant temperature
indicator light remains illuminated after
the engine has been sufficiently warmed
up, the temperature sensor could have a
malfunction. Consult an Authorized
Mazda Dealer.
When Driving
Instrument Cluster and Display
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