2021 MAZDA MODEL CX-3 ignition

Replacing the fuses under the hood
If the headlights or other electrical
components do not work and the fuses in
the cabin are normal, inspect the fuse
block under the hood.
If a fuse is blown, it must be replaced.
Follow these steps:

1. Make sure the ignition is switched off,and other switches are off.
2. Remove the fuse block cover.
3. If any fuse but the MAIN fuse is
blown, replace it with a new one of the
same amperage rating .
Normal
Blown
WARNING
Do not replace the main fuse by
yourself. Have an Authorized Mazda
Dealer perform the replacement:
Replacing the fuse by yourself is
dangerous because the MAIN fuse is a
high current fuse. Incorrect
replacement could cause an electrical
shock or a short circuit resulting in a
fire.
4. Reinstall the cover and make sure that it is securely installed.
Maintenance and Care
Owner Maintenance
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minerals will concentrate and harden to
form white rings. The rings can damage
your vehicle's finish.
Prevention
It is necessary to wash and wax your
vehicle to preserve its finish according to
the instructions in this section. These steps
should be taken immediately after you find
water marks on your vehicle's finish.
Paint Chipping
Occurrence
Paint chipping occurs when gravel thrown
in the air by another vehicle's tires hits
your vehicle.
How to avoid paint chipping
Keeping a safe distance between you and
the vehicle ahead reduces the chances of
having your paint chipped by flying
gravel.
NOTE
The paint chipping zone varies with the
speed of the vehicle. For example, when
traveling at 90 km/h (56 mph), the paint
chipping zone is 50 m (164 ft).
In low temperatures a vehicle's finish
hardens. This increases the chance of
paint chipping.
Chipped paint can lead to rust forming
on your Mazda. Before this happens,
repair the damage by using Mazda
touch-up paint according to the
instructions in this section. Failure to
repair the affected area could lead to
serious rusting and expensive repairs.

Follow all label and container directions
when using a chemical cleaner or polish.
Read all warnings and cautions.
▼ Maintaining the Finish
Wa s h i n g
CAUTION

When the wiper lever is in the AUTO
position and the ignition is switched ON,
the wipers may move automatically in
the following cases:
 If the windshield above the rain sensor
is touched or wiped with a cloth.
 If the windshield is struck with a hand
or other object from either outside or
inside the vehicle.
Keep hands and scrapers clear of the
windshield when the wiper lever is in the
AUTO position and the ignition is
switched ON as fingers could be pinched
or the wipers and wiper blades damaged
when the wipers activate automatically.
If you are going to clean the windshield,
be sure the wipers are turned off
completely (when it is most likely that the
engine is left running) this is particularly
important when clearing ice and snow.
Maintenance and Care
Appearance Care
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Route the jumper cables away from parts that will be moving:
Connecting a jumper cable near or to moving parts (cooling fans, belts) is dangerous. The
cable could get caught when the engine starts and cause serious injury.
CAUTION
Use only a 12 V booster system. You can damage a 12 V starter, ignition system, and other
electrical parts beyond repair with a 24 V power supply (two 12 V batteries in series or a 24 V
motor generator set).
1. Move the booster vehicle so that its battery is as close as possible to your vehicle's battery.
2. Make sure that the power such as for the headlights and air conditioner is turned off.
3. Remove the battery cover.
4. Turn off the booster vehicle's engine and connect the jumper cables in the following
order.
Make sure that the jumper cables are securely connected so that they do not disconnect
due to engine vibrations.
1st lead
Positive (+) terminal on the discharged battery
Positive (+) terminal on booster vehicle's battery
2nd lead
Negative (-) terminal on booster vehicle's battery
If Trouble Arises
Battery Runs Out
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Overheating
If the high engine coolant temperature
warning light turns on, the vehicle loses
power, or you hear a loud knocking or
pinging noise, the engine is probably too
hot.
WARNING
Pull over to a safe location, then switch
the ignition off and make sure the fan is
not running before attempting to work
near the cooling fan:
Working near the cooling fan when it is
running is dangerous. The fan could
continue running indefinitely even if the
engine has stopped and the engine
compartment temperature is high. You
could be hit by the fan and seriously
injured.
Do not remove either cooling
system cap when the engine and radiator
are hot:
When the engine and radiator are hot,
scalding coolant and steam may shoot out
under pressure and cause serious injury.
Open the hood ONLY after steam is no
longer escaping from the engine:
Steam from an overheated engine is
dangerous. The escaping steam could
seriously burn you.
If the high engine coolant temperature
warning light turns on:

1. Drive safely to the side of the road and park off the right-of-way.
2. Put a vehicle with an automatic transaxle in park (P), a manual
transaxle in neutral.
3. Apply the parking brake.
4. Turn off the air conditioner.
5. Check whether coolant or steam is
escaping from the engine
compartment.

If steam is coming from the engine
compartment:
Do not go near the front of the vehicle.
Stop the engine.
Wait until the steam dissipates, then
open the hood and start the engine.

If neither coolant nor steam is
escaping:
Open the hood and idle the engine
until it cools.
CAUTION
If the cooling fan does not operate
while the engine is running, the engine
temperature will increase. Stop the
engine and call an Authorized Mazda
Dealer.
6. Make sure the cooling fan is operating, then turn off the engine after the
temperature has decreased.
7. When cool, check the coolant level.
If Trouble Arises
Overheating
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SignalWarning
Brake System Warning
Light This warning has the
following functions:
Parking brake warning/Warning light inspection
The light illuminates when the parking brake is applied w ith the ignition switched to
START or ON. It turns off when the parking brake is released.
When the light turns on
If the brake system warning light remains turned on even though the parking brake is
released, the brake fluid may be low or th ere could be a problem with the brake sys ‐
tem. Park the vehicle in a safe place i mmediately and contact an Authorized Mazda
Dealer.
When the light is flashing
The light flashes if the Electric Pa rking Brake (EPB) has a malfunction.
If the light remains flashing even if th e Electric Parking Brake (EPB) switch is oper ‐
ated, consult an Authorized Mazd a Dealer as soon as possible.
WA R N I N G
Do not drive with the brake system warning light illuminated. Contact an Authorized
Mazda Dealer to have the brakes inspected as soon as possible:
Driving with the brake system warning light illuminated is dangerous. It indicates that
your brakes may not work at all or that they could completely fail at any time. If this
light remains illuminated, after checking that the parking brake is fully released, have
the brakes inspected immediately.
CAUTION
In addition, the effectiveness of the braking may diminish so you may need to depress
the brake pedal more st rongly than normal to stop the vehicle.
Electronic Brake Force
Distribution System Wa r n i n g If the electronic brake force distribution
control unit determines that some compo ‐
nents are operating incorrectly, the control unit may illuminate the brake system
warning light and the ABS warning light si multaneously. The problem is likely to be
the electronic brake forc e distribution system.
WA R N I N G
Do not drive with both the ABS warning light and brake warning light illuminated.
Have the vehicle towed to an Authorized Mazda Dealer to have the brakes inspected as
soon as possible:
Driving when the brake system warning lig ht and ABS warning light are illuminated
simultaneously is dangerous.
When both lights are illuminated, the rear wheels could lock more quickly in an emer‐
gency stop than under normal circumstances.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
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SignalWarning
Air Bag/Front Seat
Belt Pretensioner
System Warning
Light A system malfunction is indicated
if the warning light constantly flashes, constantly illu‐
minates or does not illuminate at all when the ignition is switched ON. If any of these oc ‐
cur, consult an Authorized M azda Dealer as soon as possible. The system may not operate
in an accident.WA R N I N G
Never tamper with the air bag/pretensioner systems and always have an Authorized Mazda
Dealer perform all servicing and repairs:
Self-servicing or tampering with the systems is dangerous. An air bag/pretensioner could
accidentally activate or become disabled causing serious injury or death.
AW D Wa r n i n g
Light*
When the light is turned on
The light turns on under the following conditions. The system may have a malfunction.
Have the vehicle checked at an Authorized Mazda Dealer.
When there is a malfunction in the AWD system.When there is a large difference between th e tire size of the front and rear wheels.
When the light is flashing
Park the vehicle in a safe place. After a few moments, if the warning light stops flashing,
you can resume driving. If the light does not stop flashing, contact an Authorized Mazda
Dealer.
When the differential oil temperature is excessively high.When there is a large difference between the front and rear wheel rotation, such as
when trying to remove the vehicle from mud.
(Flashing)
Tire Pressure Moni ‐
toring System
Warning Light
*
If the tire pressure monitoring system has a malfunction, the tire pressure warning light
flashes. Have your vehicle checked by an Au thorized Mazda Dealer as soon as possible.
WA R N I N G
If the tire pressure monitoring system warning light illuminates or
flashes, or the tire pres‐
sure warning beep sound is heard, decrease vehicle speed immediately and avoid sudden
maneuvering and braking:
If the tire pressure monitoring system warning light illuminates or flashes, or the tire pres‐
sure 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.
To determine if you have a slow leak or a flat, pull over to a safe position where you can
check the visual condition of the tire and determine if you have enough air to proceed to a
place where air may be added and the system monitored again by an Authorized Mazda
Dealer or a tire repair station.
Do not ignore the TPMS Warning Light:
Ignoring the TPMS 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 situa‐
tion that could lead to tire failure and a dangerous accident.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
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SignalWarning
(Red)
(Turns on)
KEY Warning Light If any malfunction occurs in the keyless
entry system, it illuminates continuously.
CAUTION
If the key warning indicator light illuminates or the push button start indicator light (amber)
flashes, the engine may not start. If the engine cannot be started, try starting it using the
emergency operation for starting the engine, and have the vehicle inspected at an Author‐
ized Mazda Dealer as soon as possible.
Refer to Emergency Operation for Starting the Engine on page 4-9.
Security Indicator Light If the engine does not start with the correct ke
y, 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 igni‐
tion off, and then restart the en gine. If the engine does not start after 3 or more tries, con‐
tact an Authorized Mazda Dealer.
(Amber)
High Beam Control System (HBC)
Wa r n i n g L i g h t
*
The light remains turned on if there is a pr oblem with the system. Have your vehicle in ‐
spected at an Authorized Mazda Dealer.
NOTE
If the Forward Sensing Camera (FSC) field of view is impaired during bad weather condi ‐
tions (such as rain, fog, and snow) and when the windshield is dirty, the warning indica‐
tion/warning light for the High Beam Contro l System (HBC) may display/turn on. Howev‐
er, this does not indicate a problem.
(Turns on)
Lane Departure
Wa r n i n g S y s t e m
(LDWS) Warning
Light
*
The warning light remains turn ed on if there is a problem with the system. Have your
vehicle inspected at an Authorized Mazda Dealer.
The LDWS does not operate when the warning light illuminates.
CAUTION
A problem in the system may be indicated un der the following conditions. Have your ve‐
hicle inspected at an Authorized Mazda Dealer.
 When the light remains turned on while driving the vehicle.
When the system is canceled automatically, the light turns on. Normally, the system
restores automatically and the light turns off , however, if the light remains turned on,
there may be a problem with the system.
 The light does not illuminate when the ignition is switched ON.
 Always use tires for all wheels that are of the
specified size, and the same manufacture,
brand, and tread pattern. In addition, do no t use tires with significantly different wear
patterns on the same vehicle. If such improper tires are used, the LDWS may not operate
normally.
 When an emergency spare tire is used, the system may not operate normally.
NOTE
If the windshield area in fr ont of the Forward Sensing Camera (FSC) is fogged or ob ‐
structed, the light turns on temporarily. If the light remains turned on, there may be a
problem with the system.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
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SignalWarning
(Amber)
Mazda Radar Cruise Control with Stop & Go function
(MRCC with Stop & Go function)
Warning Light
*
The warning light turns on if there is a malf unction in the system while the Mazda Radar
Cruise Control with Stop & Go function (MRCC with Stop & Go function) system is on.
Have your vehicle inspected at an Authorized Mazda Dealer.
Blind Spot Monitor ‐
ing (BSM) OFF In ‐
dicator Light
*
A problem in the system may be indicated under the following conditions.
Have your vehicle inspected at an Authorized Mazda Dealer.
The light does not turn on when the ignition is switched ON.The light remains on even wh en the Blind Spot Monitoring (BSM) system can be oper ‐
ated.
The light turns on while driving the vehicle.
NOTE
If the vehicle is driven on a road with less traffic and few vehicles that the radar sensors
can detect, the system may pause (The Blin d Spot Monitoring (BSM) OFF indicator light
in the instrument cluster illuminates). However, it does not indicate a malfunction.
LED Headlight
Warning Light*
This light illuminates if ther e is a malfunction in the LED headlight. Have your vehicle
inspected by an Authorized Mazda Dealer.
▼ Taking Action
Take the appropriate action and verify that the warning light turns off.
Signal
Warning Action to be taken
Low Fuel Warning
Light The light turns on wh
en the remaining fuel
is about 9.0 L (2.3 US gal, 1.9 Imp gal).
NOTE
The light illumination timing may vary be‐
cause fuel inside the fuel tank moves around
according to the driving conditions and the
vehicle posture. Add fuel.
Check Fuel Cap Warn
‐
ing Light If the check fuel cap warning light illumi‐
nates while driving, the fuel-filler cap may
not be installed properly.
Stop the engine and re
install the fuel-filler
cap.
Refer to Refueling on page 3-26.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
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