2021 MAZDA MODEL 6 hood open

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.
▼ Operation
System triggering conditions
The horn sounds intermittently and the
hazard warning lights flash for about 30
seconds when the sys
tem is triggered by
any one of the following:
Unlocking a door with the auxiliary key,
door lock switch, or an inside door-lock
knob.
Forcing open a door, the hood or the
trunk lid.
Opening the hood by operating the hood
release handle.
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 trunk lid 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
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.
▼ 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 trunk lid are closed.
4. Press the lock butto n 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 “
” while
any door is open and then close all of
the doors.
(With the advanced keyless function)
Press a request switch.

The security indicator light in the
instrument cluster flashes twice per
second for 20 seconds.
5. After 20 seconds, the system is fully
armed.
NOTE
The theft-deterrent system can also be
armed by activating the auto relock
function with all the doors, the trunk lid
and the hood closed.
Refer to Transmitter on page 3-5.
Before Driving
Security System
3-42*Some models.
Mazda6_8JN3-EA-20H_Edition1_old 2020-6-18 17:31:27

The system will disarm if one of the
following operations takes place within
20 seconds after pressing the lock
button:
Unlocking any door.
Opening any door.
Opening the hood.
Switching the ignition ON.
To rearm the system, do the arming
procedure again.
When the doors are locked by pressing
the lock button on the transmitter or
using the auxiliary key while the
theft-deterrent system is armed, the
hazard warning lights will flash once to
indicate that the system is armed.
▼ To Turn Off an Armed System
An armed system can be turned off using
any one of the following methods:
Pressing the unlock button on the
transmitter.
Starting the engine with the push button
start.
(With the advanced keyless function)
Pressing a reque
st switch on the
doors.
The hazard warning lights will flash twice.
NOTE
When the doors are unlocked by pressing
the unlock button on the transmitter while
the theft-deterrent system is turned off, the
hazard warning lights will flash twice to
indicate that the sy stem is turned off.
▼To S t o p t h e A l a r m
A triggered alarm can be turned off using
any one of the following methods:
Pressing the unlock button or the trunk
button on the transmitter.
Starting the engine with the push button
start.
(With the advanced keyless function)
Pressing a request switch on the
doors.
Pressing the electric trunk lid opener
while the key is being carried.
The hazard warning lights will flash twice.
Before Driving
Security System
3-43
Mazda6_8JN3-EA-20H_Edition1_old 2020-6-18 17:31:27

Operating Tips
Operate the climate control system with
the engine running.
To prevent the battery from being
discharged, do not leave the fan control
switch on for a long period of time with
the ignition switched ON when the
engine is not running.
Clear all obstructions such as leaves,
snow and ice from the hood and the air
inlet in the cowl grille to improve the
system efficiency.
Use the climate control system to defog
the windows and dehumidify the air.
The recirculate mode should be used
when driving through tunnels or while
in a traffic jam, or when you would like
to shut off outside air for quick cooling
of the interior.
Use the outside air position for
ventilation or windshield defrosting.
If the vehicle has been parked in direct
sunlight during hot weather, open the
windows to let warm air escape, then
run the climate control system.
Run the air cond itioner about 10
minutes at least once a month to keep
internal parts lubricated.
Have the air conditioner checked before
the weather gets hot . Lack of refrigerant
may make the air conditioner less
efficient.
The refrigerant specifications are
indicated on a label attached to the
inside of the engine compartment. If the
wrong type of refrigerant is used, it
could result in a ser ious malfunction of
the air conditioner. Consult a
professional, government certified
repairer for the inspection or repair
because a special device is required for
the air conditi oner maintenance.
For details, consult an Authorized
Mazda Dealer.
Label
Interior Features
Climate Control System
5-2
Mazda6_8JN3-EA-20H_Edition1_old 2020-6-18 17:31:27

Hood
WA R N I N G
Always check that the hood is closed and
securely locked:
A hood that is not closed and securely
locked is dangerous as it could fly open
while the vehicle is moving and block the
driver's vision which could result in a
serious accident.
▼Opening the Hood
1. With the vehicle parked, pull the
release handle to unlock the hood.

Release handle
2. Insert your hand into the hoodopening, slide the latch lever to the
right, and lift up the hood.

Lever
NOTE
The lever is located a little to the left of
center when facing the vehicle.
3. Grasp the support rod in the padded
area and secure it in the support rod
hole indicated by the arrow to hold the
hood open.

Pad
Clip
Clip
Support rod
Maintenance and Care
Owner Maintenance
6-18
Mazda6_8JN3-EA-20H_Edition1_old 2020-6-18 17:31:27

If the above indications remain
unchanged even after 1 minute has
passed with the vehicle stopped:
If you have already added 5.7 L (1.5 US
gal, 1.3 Imp gal) of DEF according to
the DEF level (%) indication on the
multi-information display, prepare an
additional 5.7 L (1.5 US gal, 1.3 Imp
gal) of DEF or more and add it
following the replenishment procedure.
If you added the correct amount of DEF,
the DEF level (%) indication on the
multi-information display will show an
increase while the vehicle is being
driven. If the DEF level (%) shows no
increase or the speed restriction does not
cancel even while driving the vehicle,
consult an Authorized Mazda Dealer.
Body Lubrication
All moving points of the body, such as
door and hood hinges and locks, should be
lubricated each time the engine oil is
changed. Use a nonfreezing lubricant on
locks during cold weather.

Make sure the hood's secondary latch
keeps the hood from opening when the
primary latch is released.
Maintenance and Care
Owner Maintenance
6-34
Mazda6_8JN3-EA-20H_Edition1_old 2020-6-18 17:31:27

Overheating
If the temperature gauge indicates
overheating or 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.
WA R N I N G
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 temperature gauge indicates
overheating or 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. Shift into park (P).
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.

If Trouble Arises
Overheating
7-20
Mazda6_8JN3-EA-20H_Edition1_old 2020-6-18 17:31:27

Index
Transmitter.....................................3-5
Key Left-in-trunk Warning Beep (With
the advanced keyless function)......... 7-47
Key Left-in-vehicle Warning Beep (With
the advanced keyless function)......... 7-47
Key Removed from Vehicle Warning
Beep...................................................7-46
Key Suspend Function........................ 3-9
L
Label Information............................... 9-2
Lane Departure Warning sound........ 7-48
Lane-Change Signals........................ 4-84
Lane-keep Assist System (LAS) & Lane
Departure Warning System
(LDWS)........................................... 4-164
Leaving Home Light......................... 4-83
Lighting Control................................4-78
Lights-on Reminder.......................... 7-45
Light Bulbs Replacement................................ 6-48
Specifications.................................9-7
Lubricant Quality ................................ 9-5
Luggage Compartment......................5-38
M
Maintenance Information.................................... 6-2
Scheduled.......................................6-4
Map Lights........................................ 5-28
Mazda Connect................................... 5-9 Appendix..................................... 5-20
Mazda Connect Basic
Operations....................................5-12
Mazda Radar Cruise Control with Stop &
Go function (MRCC with Stop & Go
function).......................................... 4-150 Close proximity warning........... 4-154
Cruise control function.............. 4-161
Display indication......................4-153
Setting the system..................... 4-155
Stop hold control....................... 4-160
Mazda Radar Cruise Control with Stop &
Go function (MRCC with Stop & Go
function) System Warnings............... 7-49
Message Indicated on Display.......... 7-43
Meters................................................ 4-13
Mirrors Outside mirrors..... ....................... 3-29
Rearview mirror.......................... 3-31
Mirror Defogger......... ....................... 4-90
Moonroof...........................................3-37
Multi-information Display (Type
A).......................................................4-15
Multi-information Display (Type
B)....................................................... 4-34
Multi-information Display (Type
C)....................................................... 4-52
O
Outside Mirrors......... ........................ 3-29
Overhead Console............................. 5-36
Overhead Lights................................ 5-28
Overheating....................................... 7-20
Overloading....................................... 3-49
Owner Maintenance Closing the hood...... ................... 6-19
Engine compartment overview.... 6-20
Key battery replacemen t..............6-41
Opening the hood........................ 6-18
Owner maintenance
precautions................................... 6-16
P
Parking Brake..................................4-101
Parking Sensor System................... 4-248 Parking sensor system
operation.................................... 4-252
Sensor detection range.............. 4-250
Power Steering................................ 4-118
10-7
Mazda6_8JN3-EA-20H_Edition1_old 2020-6-18 17:31:27