2021 MAZDA MODEL CX-9 heating

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

If you find a leak or other damage, or if
coolant is still leaking:
Stop the engine and call an Authorized
Mazda Dealer.
Cooling system cap
Coolant reservoir
Cooling fan
If you find no problems, the engine is
cool, and no leaks are obvious:
Carefully add coolant as required (page
6-22).
CAUTION
If the engine continues to overheat or
frequently overheats, have the cooling
system inspected. The engine could be
seriously damaged unless repairs are
made. Consult an Authorized Mazda
Dealer.
If Trouble Arises
Overheating
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SignalWarning
Charging System Warn‐
ing Indication/Warning Light If the warning light illuminates while drivin
g, it indicates a malfunction of the alter‐
nator or of the charging system.
Drive to the side of the ro ad and park off the right-of -way. Consult an Authorized
Mazda Dealer.
CAUTION
Do not continue driving when the charging system warning light is illuminated be‐
cause the engine could stop unexpectedly.
Engine Oil Warning Light This warning light indicates low engine oil pressure.
CAUTION
Do not run the engine if the oil pressure is
low. Otherwise, it could result in extensive
engine damage.
If the light illuminates or the warning indication is displayed while driving:
1. Drive to the side of the road and pa rk off the right-of-way on level ground.
2. Turn off the engine and wait 5 minutes fo r the oil to drain back into the oil pan.
3. Inspect the engine oil level (page 6-21). If it's low, add the appropriate amount of
engine oil while being careful not to overfill.
CAUTION
Do not run the engine if the oil level is low. Otherwise, it could result in extensive
engine damage.
4. Start the engine and check the warning light.

If the light remains illuminated even though th e oil level is normal or after adding oil,
stop the engine immediately and have your vehicle towed to an Authorized Mazda
Dealer.
(Red)
High Engine Coolant
Temperature Warning Indication/Warning Light The light flashes when the engine coolant temperature is extremely high, and illumi
‐
nates when the engine coolant temperature increases further.
Handling Procedure
Flashing light
Drive slowly to reduce engine load until you can find a safe place to stop the vehicle
and wait for the engine to cool down.
Illuminated light
This indicates the possibility of overheati ng. Park the vehicle in a safe place immedi ‐
ately and stop the engine.
Refer to Overheating on page 7-23.
CAUTION
Do not drive the vehicle with the high engine coolant temperature warning light illumi‐
nated. Otherwise, it could resu lt in damage to the engine.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
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Index
Lighting Control................................4-70
Lights-on Reminder.......................... 7-47
Light BulbsReplacement................................ 6-38
Specifications.................................9-6
Lubricant Quality ................................ 9-4
Luggage Compartment......................5-71
Cargo Securing Loops ................. 5-71
Cargo Sub-Compartment............. 5-71
Luggage Compartment Light............ 5-55
M
Maintenance
Information.................................... 6-2
Scheduled.......................................6-4
Map Lights........................................ 5-55
Mazda Connect................................. 5-32 Appendix..................................... 5-44
Appendix (Mazda Connect (Type
A))................................................5-25
Appendix (Mazda Connect (Type
B))................................................ 5-44
Connected Service... .................... 5-52
Mazda Connect Basic
Operations....................................5-36
Mazda Connect Basic Operations
(Mazda Connect (Type A))..........5-17
Mazda Connect Basic Operations
(Mazda Connect (Type B)).......... 5-36
Mazda Connect (Mazda Connect
(Type A))..................................... 5-14
Mazda Radar Cruise Control with Stop &
Go function (MRCC with Stop & Go
function).......................................... 4-143 Close proximity warning........... 4-147
Cruise control function.............. 4-155
Display indication......................4-145
Setting the system..................... 4-148
Stop hold control....................... 4-154
Message Indicated in Multi-information
Display.............................................. 7-45
Message Indicated on Display.......... 7-43
Meters................................................ 4-11
MirrorsOutside mirrors..... ....................... 3-34
Rearview mirror.......................... 3-36
Mirror Defogger......... ....................... 4-82
Moonroof...........................................3-42
Multi-information Display (Type
A).......................................................4-13
Multi-information Display (Type
B)....................................................... 4-30
Multi-information Display (Type
C)....................................................... 4-45
O
Off-Road Traction Assist Off-Road Traction Assist indicator
light............................................ 4-107
Off-Road Traction Assist
switch......................................... 4-108
Outside Mirrors......... ........................ 3-34
Overhead Console............................. 5-68
Overhead Lights................................ 5-55
Overheating....................................... 7-23
Overloading....................................... 3-54
Owner Maintenance Closing the hood...... ................... 6-17
Engine compartment overview.... 6-19
Key battery replacemen t..............6-32
Opening the hood........................ 6-17
Owner maintenance
precautions................................... 6-15
P
Parking Sensor System (Mazda Connect
(Type A))......................................... 4-272
Sensor detection range.............. 4-274
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Index
Tire Information................................ 8-25
Tire Pressure Monitoring System.... 4-252
To w i n gHook.............. .............................. 7-26
Recreational towing.....................3-65
Trailer towing (U.S.A. and
Canada)........................................ 3-57
Towing Description........................... 7-25
Traction Control System (TCS)...... 4-103 TCS OFF Indicator Light.......... 4-104
TCS OFF Switch....................... 4-104
TCS/DSC indicator light........... 4-103
Traffic Sign Recognition System
(TSR)............................................... 4-127
Trailer Stability Control (TSC)....... 4-106
Transmitter.......................................... 3-5
Trouble
Battery runs out........................... 7-19
Emergency starting...................... 7-22
Emergency towing....................... 7-25
Flat tire.......................................... 7-3
Overheating................................. 7-23
Parking in an emergency............... 7-2
When Liftgate Cannot be
Opened......................................... 7-52
Turn Signals...................................... 4-77
U
Ultrasonic Sensor (Rear)................. 4-245
USB Power Outlet............................ 5-60
V
Vanity Mirrors................................... 5-54
Vehicle Information Labels................. 9-2
W
Warning Sound is Activated............. 7-47 Advanced Key removed from vehicle
warning beep............................... 7-48
Air bag/seat belt pretensioner system
warning beep............................... 7-47
AUTOHOLD warning beep........ 7-49
Blind Spot Monitoring (BSM)
warning beep............................... 7-50
Collision warning...... .................. 7-51
Electric Parking Brake (EPB)
Warning Beep.............................. 7-49
Excessive speed warning.............7-50
Ignition not switched off (STOP)
warning beep............................... 7-48
Key left-in-luggage compartment
warning beep (With the advanced
keyless function)..........................7-49
Key left-in-trunk warning beep (With
the advanced keyless function).... 7-49
Key left-in-vehicle warning beep
(With the advanced keyless
function).......................................7-49
Key removed from vehicle warning
beep..............................................7-48
Lane Departure Warning sound... 7-51
Lights-on reminder...................... 7-47
Mazda Radar Cruise Control with
Stop & Go function (MRCC with
Stop & Go function) system
warnings.......................................7-50
Power Liftgate Warning Beep..... 7-49
Power steering warning buzzer....7-50
Request switch inoperable warning
beep (With the advanced keyless
function).......................................7-49
Seat belt warning beep................ 7-47
Tire inflation pressure warning
beep..............................................7-50
Warranty............................................ 8-16
Weights................................................ 9-6
Windows Power windows........................... 3-39
Windshield Washer........................... 4-81
Windshield Wipers............................ 4-78
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