heating MAZDA MODEL CX-3 2021 User Guide

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
6-25).
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 Light If the warning light illuminates while driving, 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 6-24). 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 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 7-21.
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
Traffic Sign Recognition System
(TSR)........................................... 4-93
i-ACTIV AWD Operation.................4-73
J
Jack...................................................... 7-5
Jump-Starting.................................... 7-17
K
Keyless Entry System......................... 3-4
Keys.....................................................3-2
Key suspend function.................... 3-8
Transmitter..................................... 3-5
Key left-in-luggage compartment
warning beep (With the advanced keyless
function)............................................ 7-44
Key left-in-vehicle warning beep (With
the advanced keyless function)......... 7-44
Key removed from vehicle warning
beep................................................... 7-43
Key Suspend Function........................ 3-8
L
Label Information............................... 9-2
Lane Departure Warning sound........ 7-45
Lane Departure Warning System
(LDWS)............................................. 4-82 LDWS switch.............................. 4-84
Lane-Change Signals........................ 4-47
Leaving Home Light......................... 4-45
Liftgate.............................................. 3-19 Luggage compartmen t................. 3-21
When Liftgate Cannot be
Opened......................................... 7-47
Lighting Control................................4-40
Lights-on reminder............................7-42
Light Bulbs Replacement................................ 6-40
Specifications.................................9-6
Lubricant Quality................................ 9-4
Luggage Compartment Light.......... 5-142
M
Maintenance Information.................................... 6-2
Scheduled.......................................6-4
Maintenance Monitor........................ 6-14
Manual Transaxle Operation............. 4-27
Map Lights...................................... 5-142
Mazda Radar Cruise Control with Stop &
Go function (MRCC with Stop & Go
function).......................................... 4-104 Close proximity warning........... 4-106
Cruise control func tion.............. 4-113
Display indication......................4-106
Setting the system..................... 4-107
Stop hold control....................... 4-112
Mazda Radar Cruise Control with Stop &
Go function (MRCC with Stop & Go
function) System Warnings............... 7-45
Message Indicated on Display.......... 7-40
Meters and Gauges............................4-11
Mirrors Outside mirrors............................ 3-28
Rearview mirror.......................... 3-29
Mirror Defogger.......... ...................... 4-53
Moonroof...........................................3-33
O
Odometer and Trip Meter................. 4-12
Outside Mirrors................................. 3-28
Outside Temperature Display............4-15
Overhead Console..... ...................... 5-147
Overhead Lights......... ..................... 5-142
Overheating....................................... 7-21
Overloading....................................... 3-45
Owner Maintenance Closing the Hood.........................6-19
Engine Compartment
Overview..................................... 6-21
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Index
Smart Brake Support (SBS) indicator
light (red)................................... 4-125
Stopping the Smart Brake Support
(SBS) system operation............. 4-125
Smart City Brake Support
(SCBS)............................................ 4-120 Collision warning.... .................. 4-122
Smart City Brake Support (SCBS)
Indicator Light (Red).................4-122
Stopping the Smart City Brake
Support (SCBS) System
Operation................................... 4-122
Spare Tire............................................ 7-6
Specifications...................................... 9-4
Speedometer...................................... 4-12
Speed Unit Selector.......................... 4-12
SRS Air Bags
Front passenger occupant
classification system.................... 2-66
How the SRS air bags work........ 2-59
Limitations to SRS air bag.......... 2-64
Monitoring................................... 2-70
SRS air bag deployment
criteria.......................................... 2-63
Supplemental restraint system
components.................................. 2-57
Starting the Engine..............................4-5
Steering Wheel
Heated steering wheel................. 2-20
Horn............................................. 4-53
Storage Compartments .................... 5-147
Center console........................... 5-148
Glove compartment................... 5-148
Overhead console...................... 5-147
Rear coat hooks........ ................. 5-150
Sunshade............................................3-35
Sunvisors......................................... 5-142
T
Tachometer........................................ 4-13
Theft-Deterrent System..................... 3-38
Tiedown Hook.............. .............................. 7-24
Tires................................................... 6-36
Flat Tire......................................... 7-3
Replacing a Tire.......................... 6-38
Replacing a Wheel...................... 6-39
Snow tires.................................... 3-43
Specifications.................................9-7
Temporary Spare Tire..................6-38
Tire chains................................... 3-43
Tire Inflation Pressure................. 6-36
Tire Rotation................................6-37
Uniform tire quality grading system
(UTQGS)..................................... 8-23
Tire inflation pressure warning
beep................................................... 7-44
Tire Information................................ 8-25
Tire Pressure Monitoring System.... 4-140
To w i n g
Recreational towing.....................3-47
Trailer Towing............................. 3-47
Towing Description........................... 7-23
Traction Control System (TCS)........ 4-66 TCS OFF Indicator Light............ 4-67
TCS OFF Switch......................... 4-67
TCS/DSC Indicator Light............4-66
Traffic Sign Recognition System
(TSR)................................................. 4-93
Transmitter.......................................... 3-5
Trip Computer................................... 4-16
Trip Meter......................................... 4-12
Trouble Battery runs out........................... 7-17
Emergency Starting..................... 7-20
Emergency Towing......................7-23
Flat Tire......................................... 7-3
Overheating................................. 7-21
Parking in an Emergency.............. 7-2
When Liftgate Cannot be
Opened......................................... 7-47
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