check engine light MAZDA MODEL 3 4-DOOR 2015 User Guide

*Some models.7–27
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
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 a\
s if the vehicle had
no ABS.
Should this happen, consult an Authorized Mazda Dealer as soon as possible. NOTE
yWhen 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.
yThe 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-fi
ller cap is missing or not tightened securely.
If the check engine light remains on, or it fl 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 fl
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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*Some models.7–28
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
Signal Warning
Tire Pressure
Monitoring System Warning Light
*
If the tire pressure monitoring system has a malfunction, the tire press\
ure warning
light fl ashes for about 1 minute when the ignition is switched ON and then conti\
nues
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 co\
ntinuously.
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 fl 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 fl 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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*Some models.7–29
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
Signal Warning
Headlight
Auto-Leveling Malfunction
Indicator Light
*
This indicator light stays on for a few seconds when the ignition is swi\
tched ON.
Thereafter, the indicator light will illuminate when the headlight auto-leveling s\
ystem has a
malfunction.
If the indicator light illuminates, contact an Authorized Mazda Dealer.
NOTE
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 fl 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.
When fl ashing
This light fl 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 fl 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). NOTE
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-fi
ller cap may not be
installed properly. Stop the engine and reinstall the fuel-fi
ller cap.
Refer to Fuel-Filler Cap on page 3-31
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*Some models.7–38
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
Mazda Radar Cruise Control (MRCC) System Warnings *
The Mazda Radar Cruise Control (MRCC)
system warnings notify the driver of
system malfunctions and cautions on use
when required.
Check based on the beep sound.
Cautions What to check
The beep sounds 1 time
while the Mazda Radar
Cruise Control (MRCC)
is operating The vehicle speed is
slower than 25 km/h (16
mph) and the Mazda
Radar Cruise Control
(MRCC) system has
been canceled.
The beep sounds
continuously while
driving The distance between
your vehicle and the
vehicle ahead is too
close. Verify the safety
of the surrounding area
and reduce vehicle
speed.
When the Mazda
Radar Cruise Control
(MRCC) is operating,
the beep sounds and the
Mazda Radar Cruise
Control (MRCC)
warning light (amber)
in the instrument cluster
fl ashes. A malfunction in
the system may be
indicated. Have your
vehicle inspected at
an Authorized Mazda
Dealer.
Collision warning *
If there is the possibility of a collision
with a vehicle ahead, the beep sounds
continuously and a warning is indicated in
the display.
Power Steering Warning Buzzer
If the power steering system has
a malfunction, the power steering
malfunction light turns on or fl
ashes and
the buzzer operates at the same time.
Refer to Warning/Indicator Lights on page
4-20 .
Over Rev. Buzzer *
The buzzer sounds to notify the driver if
the engine speed is about to exceed the
permissible engine speed.
CAUTION
Operate the accelerator and shift gears
according to the driving conditions so
that the buzzer does not sound. If the
engine speed exceeds the permissible
engine speed, the engine could be
damaged.
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