ECU MAZDA MODEL CX-5 2021 Repair Manual

hold-down bolt counterclockwise and
remove the spare tire.
Spare tire hold-down bolt
To secure the spare tire
Store the spare tire in the reverse order of
removal. After storing, verify that the
spare tire is stored securely.
Changing a Flat Tire
NOTE
If the following occurs while driving, it
could indicate a flat tire.
Steering becomes difficult.
The vehicle begins to vibrate
excessively.
The vehicle pulls in one direction.
If you have a flat tire, drive slowly to a
level spot that is well off the road and out
of the way of traffic to change the tire.
Stopping in traffic or on the shoulder of a
busy road is dangerous.
WA R N I N G
Be sure to follow the directions for
changing a tire:
Changing a tire is dangerous if not done
properly. The vehicle can slip off the jack
and seriously injure someone.
No person should plac e any portion of their
body under a vehicle that is supported by a
jack.
Never allow anyone inside a vehicle
supported by a jack:
Allowing someone to remain in a vehicle
supported by a jack is dangerous. The
occupant could cause the vehicle to fall
resulting in serious injury.
NOTE
Make sure the jack is well lubricated
before using it.
1. Park on a hard, level surface off the right-of-way and firmly set the parking
brake.
If Trouble Arises
Flat Tire
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Route the jumper cables away from parts that will be moving:
Connecting a jumper cable near or to moving parts (cooling fans, belts) is dangerous. The
cable could get caught when the engine starts and cause serious injury.
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).
1. Move the booster vehicle so that its battery is as close as possible to your vehicle's battery.
2. Make sure that the power such as for the headlights and air conditioner is turned off.
3. Remove the battery cover.
4. Turn off the booster vehicle's engine and connect the jumper cables in the following
order.
Make sure that the jumper cables are securely connected so that they do not disconnect
due to engine vibrations.
1st lead
Positive (+) terminal on the discharged battery
Positive (+) terminal on booster vehicle's battery
2nd lead
Negative (-) terminal on booster vehicle's battery
If Trouble Arises
Battery Runs Out
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Location shown in the figure (do not connect to the negative (-) terminal of the
battery)
Booster batteryDischarged battery
Jumper cables
Connect cables in numerical order
and disconnect in reverse order.
5. Start the booster vehicle's engine and rev the engine.
6. Start the engine of your vehicle. Run the engines for about 3 minutes to temporarily
charge the battery of your vehicle.
7. Disconnect the jumper cables in th e reverse order of their connection.
8. Install the battery cover.
9. Have your vehicle inspected by an Authorized Mazda Dealer as soon as possible.
NOTE
Verify that the covers are securely installed.
If Trouble Arises
Battery Runs Out
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Do not tow with sling-type equipment.
This could damage your vehicle. Use
wheel-lift or
flatbed equipment.

If the parking brake cannot be released
when towing the vehicle, transport the
vehicle with all front and rear wheels
raised
off the ground as shown in the
figure. If the vehicle is towed without
raising the wheels off the ground, the
brake system could be damaged.
Wheel dollies
Tiedown Hooks*
CAUTION
Do not use the front and rear tiedown
eyelets for towing the vehicle.
They have been designed only for securing
the vehicle to a transport vessel during
shipping.
Using the eyelets for any other purpose
could result in the vehicle being damaged.
▼ Tiedown Hooks
1. Remove the tiedown eyelet and the lug
wrench from the luggage compartment
(page 7-3).
2. Wrap a flathead screwdriver or similar tool with a soft cloth to prevent
damage to a painted bumper, and open
the cap located on the front or rear
bumper.
Front
If Trouble Arises
Emergency Towing
*Some models.7-21
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Rear
Jack lever
CAUTION
Do not use excessive force as it may
damage the cap or scratch the painted
bumper surface.
NOTE
Remove the cap completely and store it
so as not to lose it.
3. Securely install the tiedown eyelet using the lug wrench.
Front
Lug wrench
Tiedown
eyelet
Rear
Tiedown eyelet
Lug wrench
4. Hook the tying rope to the tiedown eyelet.
CAUTION
If the tiedown eyelet is not securely
tightened, it may loosen or disengage
from the bumper when tying the
vehicle. Make sure that the tiedown
eyelet is securely tightened to the
bumper.
If Trouble Arises
Emergency Towing
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SignalWarning
(Red)
Brake Pedal Opera ‐
tion Demand Warn ‐
ing Light
*
When only flashing
Flashes if there is the possibility of the vehi cle not being held in the stopped position by
the AUTOHOLD function, such as on steep slopes. Depress and hold your foot on the
brake pedal.
When flashing and beep sound is activated at the same time
The warning light flashes and the beep sound is activated for about 5 seconds if there is a
problem with the system. If the warning light flashes and the warning sound is activated,
immediately depress the brake pedal and st op using the AUTOHOLD function then con ‐
tact an Authorized Mazda Dealer.
WARNING
Immediately depress the brake pedal if the warning light flashes and the beep sound is acti‐
vated while using the AUTOHOLD function:
Because the AUTOHOLD function is canceled forcibly, the vehicle may move unexpectedly
and result in an accident.
Check Engine Light If this light illuminates while driving, the ve
hicle may have a problem. It is important to
note the driving conditions wh en the light illuminated and consult an Authorized Mazda
Dealer.
The check engine light may illu minate in the following cases:
The engine's electrical system has a problem.The emission control system has a problem.(Except SKYACTIV-D 2.2)
The fuel tank level being very low or approaching empty.The fuel-filler cap is missing or not tightened securely.
If the check engine light remains on, or it flashes continuously , do not drive at high
speeds and consult an Authorized M azda Dealer as soon as possible.
WARNING
If the check engine light turns on, do not disconnect the battery cables.
If the battery cables are disconnected and th en reconnected, the engine could be damaged
and catch on fire.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
7-28*Some models.
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SignalWarning Action to be taken
Door-Ajar/Lift‐
gate-Ajar Warning In ‐
dication/Warning Light The light turns on if
any door/liftgate is not
closed securely. Close the door/liftgate securely.

Tire Pressure Monitoring System Warning Light (Turns on)
*
Take the appropriate action and verify
that the warning light turns off.
Wa r n i n g
When the warning light illumina tes, and the warning beep sound is heard when tire pressure is too low in one or
more tires.
WA R N I N G
If the tire pressure monitoring system warning light illuminates or flashes, 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 illumin ates or flashes, 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 flat, 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 da ngerous, 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.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
7-36*Some models.
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Index
Key Left-in-luggage Compartment
Warning beep (With the advanced
keyless function)............................... 7-45
Key Left-in-vehicle Warning Beep (With
the advanced keyless function)......... 7-45
Key Removed from Vehicle Warning
Beep...................................................7-44
Key Suspend Function........................ 3-9
L
Label Information............................... 9-2
Lane Departure Warning sound........ 7-46
Lane-change Signals......................... 4-82
Lane-keep Assist System (LAS) & Lane
Departure Warning System
(LDWS)........................................... 4-162
Leaving Home Light......................... 4-79
Liftgate.............................................. 3-20When Liftgate Cannot be
Opened......................................... 7-48
Lighting Control................................4-74
Lights-on Reminder.......................... 7-43
Light Bulbs Replacement................................ 6-47
Specifications.................................9-7
Lubricant Quality ................................ 9-5
Luggage Compartment......................5-64 Cargo securing loops................... 5-64
Cargo sub-compartment.............. 5-64
Luggage Compartment Light............ 5-54
M
Maintenance Information.................................... 6-2
Scheduled.......................................6-4
Map Lights........................................ 5-54
Mazda Connect................................. 5-13 Appendix (Mazda Connect (Type
A))................................................5-24
Appendix (Mazda Connect (Type
B))................................................ 5-43
Connected Service... .................... 5-51
Mazda Connect Basic Operations
(Mazda Connect (Type A))..........5-16
Mazda Connect Basic Operations
(Mazda Connect (Type B)).......... 5-35
Mazda Radar Cruise Control with Stop &
Go function (MRCC with Stop & Go
function).......................................... 4-147 Close proximity warning........... 4-151
Cruise control function.............. 4-159
Display indication......................4-149
Setting the system..................... 4-152
Stop hold control....................... 4-158
Mazda Radar Cruise Control with Stop &
Go function (MRCC with Stop & Go
function) System Warnings............... 7-47
Message Indicated on Display.......... 7-41
Message Indicated on Multi-information
Display.............................................. 7-39
Meters................................................ 4-12
Mirrors
Outside mirrors..... ....................... 3-35
Rearview mirror.......................... 3-37
Mirror Defogger......... ....................... 4-88
Moonroof...........................................3-43
Multi-information Display (Type
A).......................................................4-14
Multi-information Display (Type
B)....................................................... 4-32
Multi-information Display (Type
C)....................................................... 4-49
O
Off-Road Traction Assist Off-Road Traction Assist indicator
light............................................ 4-112
Off-Road Traction Assist
switch......................................... 4-113
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Index
Recreational Towing......................... 3-66
Registering Your Vehicle in A Foreign
Country.............................................. 8-18
ReplacementFuse..............................................6-53
Key battery.................................. 6-41
Light bulbs...................................6-47
Tires............................................. 6-44
Wheel........................................... 6-46
Wiper........................................... 6-34
Request Switch Inoperable Warning
Beep (With the advanced keyless
function)............................................ 7-45
Rocking the Vehicle.......................... 3-52
S
Safety Defects, Reporting................. 8-14
Saving Fuel and Protection of the
Environment...................................... 3-50
Scheduled Maintenance...................... 6-4
Seats.................................................... 2-5 Driving position memory............ 2-11
Front seat....................................... 2-5
Head restraint.............................. 2-20
Rear seat...................................... 2-15
Seat ventilation....... ..................... 2-23
Seat warmer................................. 2-22
Seat Belt System Automatic locking....................... 2-28
Emergency locking...................... 2-28
Extender....................................... 2-33
Pregnant women.......................... 2-28
Seat belt precautions................... 2-26
3-point type................................. 2-29
Seat Belt Warning Beep.................... 7-43
Security System Immobilizer system..................... 3-46
Theft-deterrent system................. 3-48
Selective Catalytic Reduction (SCR)
System (SKYACTIV-D 2.2)............4-261
Selective Catalytic Reduction (SCR)
Warning Beep.................................... 7-46
Smart Brake Support (SBS)............ 4-183 Collision warning...................... 4-184
Stopping the Smart Brake Support
(SBS) system operation............. 4-184
Smart City Brake Support (SCBS)
Collision warning...................... 4-178
Smart City Brake Support (SCBS)
Indicator Light (Red).................4-178
Stopping the Smart City Brake
Support (SCBS) System
Operation................................... 4-178
Smart City Brake Support [Forward]
(SCBS F)......................................... 4-176
Smart City Brake Support [Reverse]
(SCBS R)........................................ 4-179 Stopping the Smart City Brake
Support [Reverse] (SCBS R) system
operation.................................... 4-182
Spare Tire............................................ 7-4
Specifications...................................... 9-4
SRS Air Bags Front passenger occupant
classification system.................... 2-71
How the SRS air bags work........ 2-65
Limitations to SRS air bag.......... 2-69
Monitoring................................... 2-75
SRS air bag deployment
criteria.......................................... 2-68
Supplemental restraint system
components.................................. 2-63
Starting the Engine..............................4-5
Steering Wheel
Heated steering wh eel................. 2-24
Horn............................................. 4-89
Storage Compartments ...................... 5-62
Armrest box................................. 5-63
Center console............................. 5-63
Glove compartment..................... 5-63
Luggage compartment................. 5-64
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