light MAZDA MODEL CX-5 2021 Service Manual

About the SCR system
WARNING
Be careful not to allow the DEF to run out. If the DEF completely runs out, the SCR system will
not operate normally:
If the vehicle runs out of DEF, the vehicle speed is restricted in steps to prevent contaminants
from being exhausted. When the remaining dist ance-to-empty reaches 0 km (0 miles) in the
final stage, the engine is forced
to idle. For replenishment of the DEF supply, consult an
Authorized Mazda Dealer.
CAUTION
Use a Mazda genuine product or a product conforming to ISO22241-1 for DEF. If
incompatible DEF is used, the SCR system may not operate normally. For the recommended
DEF, consult the nearest Authorized Mazda Dealer.
NOTE
ï‚·When the remaining distance-to-empty is 640 km (400 miles) or shorter while the DEF
warning indication is displayed, the SCR warning light turns on and the vehicle speed is
restricted. In addition, if there is a problem with the SCR system/DEF and the remaining
distance-to-empty is 200 km (125 miles) or sh orter, the SCR warning light flashes and the
vehicle speed is restricted.
ï‚·DEF needs to be replenished periodically according to the scheduled maintenance
information. If a warning message is displa yed in the multi-information display or the
SCR warning light flashes, consult an Authorized Mazda Dealer.
ï‚·Normally, the vehicle can be driven about 12,000 km (7,500 miles) before the DEF needs
to be replenished.
â–¼ Engine Exhaust (Carbon monoxide)
WARNING
Do not drive your vehicle if you smell exhaust gas inside the vehicle:
Engine exhaust gas is dangerous. This gas contai
ns carbon monoxide (CO), which is colorless,
odorless, and poisonous. When inhaled, it can cause loss of consciousness and death. If you
smell exhaust gas inside the vehicle, keep al l windows fully open and contact an Authorized
Mazda Dealer immediately.
Before Driving
Fuel and Emission
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Fuel-Filler Lid and Cap
WARNING
When removing the fuel-filler cap, loosen
the cap slightly and wait for any hissing to
stop, then remove it:
Fuel spray is dangerous. Fuel can burn skin
and eyes and cause illness if ingested. Fuel
spray is released when there is pressure in
the fuel tank and the fuel-filler cap is
removed too quickly.
Before refueling, stop the engine, and
always keep sparks and flames away from
the filler neck:
Fuel vapor is dangerous. It could be ignited
by sparks or flames causing serious burns
and injuries.
Additionally, use of the incorrect fuel-filler
cap or not using a fuel-filler cap may result
in a fuel leak, which could result in serious
burns or death in an accident.
Do not continue refueling after the fuel
pump nozzle shuts off automatically:
Continuing to add fuel after the fuel pump
nozzle has shut off automatically is
dangerous because overfilling the fuel tank
may cause fuel overflow or leakage. Fuel
overflow and leakage could damage the
vehicle and if the fuel ignites it could cause
a fire and explosion resulting in serious
injury or death.
CAUTION
Always use only a genuine Mazda fuel-filler
cap or an approved equivalent, available
at an Authorized Mazda Dealer. The wrong
cap can result in a serious malfunction of
the fuel and emission control systems.
(SKYACTIV-G 2.5 and SKYACTIV-G 2.5T for
U.S.A. and Canada)
It may also cause the check engine light in
the instrument cluster to illuminate.
â–¼ Refueling
Before refueling, close all the doors,
windows, and the liftgate, and switch the
ignition OFF.
1. To open the fuel-filler lid, pull the
remote fuel-filler lid release.

Remote fuel-filler lid release
2. To remove the fuel-filler cap, turn itcounterclockwise.
Before Driving
Fuel and Emission
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3. Attach the removed cap to the innerside of the fuel-filler lid.

Fuel-filler cap
Fuel-filler lid
4. Insert the refueling nozzle all the wayand begin refueling. Pull out the
refueling nozzle after the refueling
stops automatically.
5. To close the fuel-filler cap, turn it
clockwise until a click is heard.
6. To close, press the fuel-filler lid until it
locks securely.

CAUTION
(SKYACTIV-G 2.5 and SKYACTIV-G 2.5T for
U.S.A. and Canada)
If the check fuel cap warning light
illuminates, the fuel-filler cap may not be
properly installed. If the warning light
illuminates, park your vehicle safely off the
right-of-way, remove the fuel-filler cap and
reinstall it correctly. After the cap has been
correctly installed, the fuel cap warning
light may continue to illuminate until a
number of driving cycles have been
completed. A drive cycle consists of starting
the engine (after four or more hours with
the engine off) and driving the vehicle on
city and highway roads.
Continuing to drive with the check fuel cap
warning light illuminated could cause the
check engine light to illuminate as well.
Before Driving
Fuel and Emission
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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-dimming mirror automatically
reduces the glare of headlights from
vehicles at the rear when the ignition is
switched ON.

(With Homelink wireless control
system)
(Type A)
Press the OFF button (
Indicator lightOFF button
ON button

(Type B)
Press the ON/OFF button (
To reactivate the auto-dimming function,
press the ON/OF F button (
Indicator light
ON/OFF button
NOTE
ï‚·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.
(With Homelink wireless control
system)
(Type A)
Light sensor
Before Driving
Mirrors
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(Type B)
Light sensor
(Without Homelink wireless control
system)

Light sensor
ï‚·(With Homelink wireless control
system)
For information regarding the 3 buttons
(Type A
,,/Type B , , )
on the auto-dimming mirror.
Refer to HomeLink Wireless Control
System on page 4-90.
ï‚·The auto-dimming function is canceled
when the ignition is switched ON and
the shift/selector lever is in the R
position.
Before Driving
Mirrors
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Power Windows
The windows can be opened/closed by operating the power window switches.
WA R N I N G
Make sure the opening is clear before closing a window:
Closing a power window is dangerous. A person's hands, head, or even neck could be caught
by the window and result in serious injury or even death. This warning applies especially to
children.
Never allow children to play with power window switches:
Power window switches that are not locked wi th the power window lock switch would allow
children to operate power window s unintentionally, which could result in serious injury if a
child's hands, head or neck becomes caught by the window.
Make sure nothing blocks the window just before it reaches the fully closed position or while
fully holding up the power window switch:
Blocking the power window just before it reac hes the fully closed position or while fully
holding up the power window switch is dangerous.
In this case, the jam-safe function cannot prevent the window from closing all the way. If
fingers are caught, seriou s injuries could occur.
NOTE
When driving with only 1 of the rear windows open, your ears might experience a
resonating sound. However, this does not indicate a problem. The sound can be reduced by
slightly opening a front window or by ch anging the size of the rear window opening.
â–¼Opening/Closing Windows
The window opens while the switch is pressed and it closes while the switch is pulled up
with the ignition switched ON. Do not open or
close 3 or more windows at the same time.
Before Driving
Windows
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The front passenger's side and rear windows can be opened/closed when the power window
lock switch on the driver's door is in the unlock position. Keep this switch in the locked
position while children are in the vehicle.

Close
Close
Open
Open
Right rear window
Driver's
window
Power window
lock switch
Master control switches
Front passenger's
window switch
Locked position
Unlocked position
Front passenger's
window
Left rear
window
Rear window switches
NOTE
ï‚·A power window may no longer open/close if you continue to press the switch after fully
opening/closing the power window. If the power window does not open/close, wait a
moment and then operate the switch again.
ï‚·The passenger windows may be opened or closed using the master control switches on the
driver's door.
ï‚·The power window can be operated for about 40 seconds after the ignition is switched
from ON to ACC or off with all doors closed. If any door is opened, the power window
will stop operating.
For engine-off operation of the power windo
w, the switch must be held up firmly
throughout window closure because the auto -closing function will be inoperable.
ï‚·When the power window lock switch is in the locked position, the light on each power
window switch, except for the driver's power window switch, turns off. The light may be
difficult to see depending on the surrounding brightness.
â–¼Auto-opening/Closing
To fully open the wi
ndow automatically,
press the switch completely down, then
release. The window will fully open
automatically.
To fully close the window automatically,
pull the switch completely up, then
release. The window will fully close
automatically.

To stop the window partway, pull or press
the switch in the opposite direction and
then release it.
NOTE
Power window system initialization
procedure
Before Driving
Windows
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Modification and Add-OnEquipment
Mazda cannot guarantee the immobilizer
and the theft-deterrent systems' operation
if the system has been modified or if any
add-on equipment has been installed.
CAUTION
To avoid damage to the vehicle, do not
modify the system or install any add-on
equipment to the immobilizer and the
theft-deterrent systems or the vehicle.
Immobilizer System
The immobilizer system allows the engine
to start only with a key the system
recognizes.

If someone attempts to start the engine
with an unrecognized key, the engine will
not start, thereby helping to prevent
vehicle theft.
If you have a problem with the
immobilizer system or the key, consult an
Authorized Mazda Dealer.
CAUTION
Radio equipment like this is governed by
laws in the United States.
Changes or modifications not expressly
approved by the party responsible for
compliance could void the user's
authority to operate the equipment.
 To avoid damage to the key, do not:
 Drop the key.
 Get the key wet.
 Expose the key to any kind of magnetic
field.
 Expose the key to high temperatures
on places such as the dashboard or
hood, under direct sunlight.
 If the engine does not start with the
correct key, and the security indicator
light keeps illuminating or flashing, the
system may have a malfunction. Consult
an Authorized Mazda Dealer.
Before Driving
Security System
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NOTE
ï‚·The keys carry a unique electronic code.
For this reason, and to assure your
safety, obtaining a replacement key
requires some waiting time. They are
only available through an Authorized
Mazda Dealer.
ï‚·Always keep a spare key in case one is
lost. If a key is lost, consult an
Authorized Mazda Dealer as soon as
possible.
ï‚·If you lose a key, an Authorized Mazda
Dealer, will reset the electronic codes of
your remaining keys and immobilizer
system. Bring all the remaining keys to
the Authorized Mazda Dealer to reset.
Starting the vehicle with a key that has
not been reset is not possible.
â–¼ Operation
NOTE
ï‚·The engine may not start and security
indicator light may illuminate or flash if
the key is placed in an area where it is
difficult for the system to detect the
signal, such as on the dashboard or in
the glove compartment. Move the key to
a location within the signal range,
switch the ignition off, and then restart
the engine.
ï‚·Signals from a TV or radio station, or
from a transceiver or mobile telephone
could interfere with your immobilizer
system. If you are using the proper key
and the engine fails to start, check the
security indicator light.
Arming
The system is armed when the ignition is
switched from ON to off.
The security indicator light in the
instrument cluster flashes every 2 seconds
until the system is disarmed.

Disarming
The system is disarmed when the ignition
is switched ON with the correct
programmed key. The security indicator
light illuminates for about 3 seconds and
then turns off. If the engine does not start
with the correct key, and the security
indicator light remains illuminated or
flashing, try the following:
Make sure the key is within the
operational range for signal transmission.
Switch the ignition off, and then restart the
engine. If the engine does not start after 3
or more tries, contact an Authorized
Mazda Dealer.
NOTE
ï‚·If the security indicator light flashes
continuously while you are driving, do
not shut off the engine. Go to an
Authorized Mazda Dealer, and have it
checked. If the engine is shut off while
the indicator light is flashing, you will
not be able to restart it.
ï‚·Because the electronic codes are reset
when the immobilizer system is repaired,
the keys are needed. Make sure to bring
all the keys to an Authorized Mazda
Dealer, so that they can be programmed.
Before Driving
Security System
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Theft-Deterrent System*
If the theft-deterrent system detects an
inappropriate entry into the vehicle, which
could result in the vehicle or its contents
being stolen, the alarm alerts the
surrounding area of an abnormality by
sounding the horn and flashing the hazard
warning lights.

The system will not function unless it's
properly armed. So when you leave the
vehicle, follow the arming procedure
correctly.
â–¼ Operation
System triggering conditions
The horn sounds intermittently and the
hazard warning lights flash for about 30
seconds when the system is triggered by
any one of the following:
ï‚·Unlocking a door with
the auxiliary key,
door lock switch, or an inside door-lock
knob.
ï‚·Forcing open a door, the hood or the
liftgate.
ï‚·Opening the hood by operating the hood
release handle.
ï‚·Switching the ignition ON without using
the push button start.
If the system is triggered again, the lights
and horn will activate until the driver's
door or the liftgate is unlocked with the
transmitter.
(With the advanced keyless function)
The lights and horn can also be
deactivated by pressing the request switch
on a door.
NOTE
ï‚·The liftgate does not open while the
theft-deterrent system is operating.
ï‚·For vehicles equipped with the power
liftgate, the liftgate can be opened even
while the theft-deterrent system is
operating by pressing the power liftgate
button on the transmitter or the electric
liftgate opener switch while carrying the
key.
ï‚·If the battery goes dead while the
theft-deterrent system is armed, the horn
will activate and the hazard warning
lights will flash wh en the battery is
charged or replaced.
â–¼ How to Arm the System
1. Close the windows and the moonroof*
securely.
2. Switch the ignition OFF.
3. Make sure the hood, the doors, and the
liftgate are closed.
4. Press the lock button on the transmitter
or lock the driver's door from the
outside with the auxiliary key.
The hazard warning lights will flash
once.
The following method will also arm
the theft-deterrent system:
Press the door-lock switch “
Before Driving
Security System
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