2016 MAZDA MODEL 3 HATCHBACK ignition

7–16
If Trouble Arises
Battery Runs Out
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).



Connect cables in numerical order and disconnect in reverse order.
Jumper cables
Booster battery
Discharged battery

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7–19
If Trouble Arises
Overheating
O v e r h e a t i n g
If the high engine coolant temperature
warning light illuminates, the vehicle loses
power, or you hear a loud knocking or
pinging noise, the engine is probably too
hot.
WARNING
Switch the ignition to 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 indefi nitely 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 illuminates:


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 it is low, look for coolant leaks from
the radiator and hoses.


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7–24
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
If a Warning Light Turns On or Flashes
If any warning light turns on/À ashes, take appropriate action for each light. There is no
problem if the light turns off, however if the light does not turn off or turns on/À ashes again,
consult an Authorized Mazda Dealer.
(Vehicles with type B audio)
The warning contents can be veri¿ ed on the audio.

1. Select the icon on the home screen to display the applications screen.
2. Select the “Warning Guidance”.

Stop Vehicle in Safe Place Immediately
If any of the following warning lights turns on, the system may have a malfunction. Stop the
vehicle in a safe place immediately and contact an Authorized Mazda Dealer.

Signal Warning


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 with the ignition switched to
START or ON. It turns off when the parking brake is fully released.
Low brake À uid level warning
If the brake warning light remains illuminated even though the parking brake is
released, the brake À uid may be low or there could be a problem with the brake system.
Park the vehicle in a safe place immediately and contact an Authorized Mazda Dealer.
WARNING
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 eff ectiveness of the braking may diminish so you may need to
depress the brake pedal more strongly than normal to stop the vehicle.
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7–27
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
*Some models.
Signal Warning


ABS Warning Light If the ABS warning light stays on while you're driving, the ABS control unit has detected a
system malfunction. If this occurs, your brakes will function normally as if the vehicle had
no ABS.
Should this happen, consult an Authorized Mazda Dealer as soon as possible. N O T E
y When the engine is jump-started to charge the battery, uneven rpm occurs and the ABS
warning light may illuminate. If this occurs, it is the result of the weak battery and does
not indicate an ABS malfunction.
Recharge the battery.
y The brake assist system does not operate while the ABS warning light is illuminated.


Check Engine Light If this light illuminates while driving, the vehicle may have a problem. It is important to
note the driving conditions when the light illuminated and consult an Authorized Mazda
Dealer.

The check engine light may illuminate in the following cases:
y The fuel tank level being very low or approaching empty.
y The engine's electrical system has a problem.
y The emission control system has a problem.
y The fuel-¿ ller cap is missing or not tightened securely.

If the check engine light remains on, or it À ashes continuously , do not drive at high speeds
and consult an Authorized Mazda Dealer as soon as possible.


Automatic
Transaxle Warning
Light
* The light/indication illuminates when the transaxle has a problem.
CAUTION
If the automatic transaxle warning light illuminates, the transaxle has an electrical
problem. Continuing to drive your Mazda in this condition could cause damage to your
transaxle. Consult an Authorized Mazda Dealer as soon as possible.


Air Bag/Seat
Belt Pretensioner
System Warning
Light A system malfunction is indicated if the warning light constantly À ashes, constantly
illuminates or does not illuminate at all when the ignition is switched ON. If any of these
occur, consult an Authorized Mazda Dealer as soon as possible. The system may not operate
in an accident. WARNING

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.
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7–28
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
*Some models.
Signal Warning


Tire Pressure
Monitoring System
Warning Light
* If the tire pressure monitoring system has a malfunction, the tire pressure warning
light À ashes for about 1 minute when the ignition is switched ON and then continues
illuminating. Have your vehicle checked by an Authorized Mazda Dealer as soon as
possible.
WARNING
If the tire pressure monitoring system warning light illuminates or fl ashes, or the tire
pressure 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 fl ashes, 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.
To determine if you have a slow leak or a fl at, 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 situation that could lead to tire failure and a dangerous accident.


(Red)
(Illuminate)
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) fl ashes, 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 Authorized Mazda Dealer as soon as possible.
Refer to Emergency Operation for Starting the Engine on page 4-9 .


(Amber)
(Flashes)
Lane Departure
Warning System
(LDWS) Warning
Light
* The warning light À ashes when the system has a malfunction. Have your vehicle inspected
at an Authorized Mazda Dealer.
The LDWS does not operate when the warning light À ashes.

CAUTION
¾ If any of the following cases occurs, the system may have a malfunction. Have the vehicle
inspected at an Authorized Mazda Dealer.

¾ The light fl ashes while the vehicle is being driven.
¾ The light does not illuminate when the ignition is switched ON.
¾ Always use tires for all wheels that are of the specifi ed size, and the same manufacture,
brand, and tread pattern. In addition, do not use tires with signifi cantly diff erent wear
patterns on the same vehicle. If such improper tires are used, the LDWS may not operate
normally.
¾ When an emergency spare tire is used, the system may not operate normally.
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7–29
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
*Some models.
Signal Warning


Headlight
Auto-Leveling
Malfunction
Indicator Light
* This indicator light stays on for a few seconds when the ignition is switched ON.
Thereafter, the indicator light will illuminate when the headlight auto-leveling system has a
malfunction.
If the indicator light illuminates, contact an Authorized Mazda Dealer.
N O T E
Vehicles with the adaptive front lighting system (AFS) are not equipped with the headlight
auto-leveling malfunction indicator light. If there is a malfunction with the headlight auto-
leveling function, the AFS OFF indicator light À ashes.


(Amber)
High Beam Control
System (HBC)
Warning Light
*
When illuminated
The warning light illuminates if the area of the windshield in front of the forward sensing
camera (FSC) is fogged or obstructed.
W h e n À ashing
This light À ashes if there is a malfunction in the high beam control system (HBC). Have
your vehicle inspected by an Authorized Mazda Dealer.


(Amber)
(Flashing)
Mazda Radar
Cruise Control
(MRCC) Warning
Light
* The warning light À ashes if there is a malfunction in the system while the Mazda Radar
Cruise Control (MRCC) system is on. Have your vehicle inspected at 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 when the remaining fuel
is about 9.0 L (2.3 US gal, 1.9 Imp gal). N O T E
The light illumination timing may vary
because fuel inside the fuel tank moves
around according to the driving conditions
and the vehicle posture. Add fuel.


Check Fuel Cap
Warning Light If the check fuel cap warning light
illuminates while driving, the fuel-¿ ller cap
may not be installed properly. Stop the engine and reinstall the fuel-¿ ller
cap.
Refer to Fuel-Filler Cap on page 3-30
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7–30
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
*Some models.
Signal Warning Action to be taken


Seat Belt Warning
Light
The seat belt warning light illuminates if the driver or front passenger's seat is occupied and
the seat belt is not fastened with the ignition switched ON.
Seat belt reminder
If the vehicle is driven with the driver or front passenger's seat belt unfastened, the seat belt
warning light illuminates and a warning beep sounds.
N O T E
If the driver or front passenger's seat belt is unfastened (only when the front passenger seat
is occupied) and the vehicle is driven at a speed faster than about 20 km/h (12 mph), the
warning light will À ash and a beep sound will be heard. After a short time, the warning light
stops À ashing, but remains illuminated, and the beep sound stops.
Until a seat belt is fastened or a given period of time has elapsed, the beep sound will not
stop even if the vehicle speed falls below 20 km/h (12 mph).
N O T E
y The warning light À ashes and a beep sound will be heard for about 6 seconds if the driver's
seat belt is not fastened when the ignition is switched ON.
y If a driver or front passenger's seat belt is unfastened after the beep sound turns off
(warning light remains illuminated), and the vehicle speed exceeds 20 km/h (12 mph), the
warning light À ashes and beep sound activates again.
y Placing heavy items on the front passenger seat may cause the front passenger seat belt
warning function to operate depending on the weight of the item.
y To allow the front passenger seat weight sensor to function properly, do not place and sit
on an additional seat cushion on the front passenger seat. The sensor may not function
properly because the additional seat cushion could cause sensor interference.
y When a small child sits on the front passenger seat, it is possible that the warning light will
not operate.


Door-Ajar Warning
Light The light turns on if any door is not closed
securely. Close the door securely.


Low Washer Fluid
Level Warning
Light
* This warning light indicates that little
washer À uid remains. Add washer À uid (page 6-32 ).
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7–32
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
KEY Warning Light
Take the appropriate action and verify that the warning light turns off.

Signal Cause Action to be taken


(Red)
(Flashing) The advanced key battery is dead. Replace the key battery (page 6-40 ).
The advanced key is not within the
operation range.
Bring the advanced key into the operation
range (page 3-7 ). The advanced key is placed in areas inside
the cabin where it is dif¿ cult for the key to
be detected.
A key from another manufacturer similar to
the advanced key is in the operation range. Take the key from another manufacturer
similar to the advanced key out of the
operation range.
Without the ignition switched off, the
advanced key is taken out of the cabin, and
then all the door are closed. Bring the advanced key back into the
cabin.

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