check engine MAZDA MODEL CX-3 2021 Owner's Manual

Maintenance IntervalNumber of months or kilometers, whichever comes first
Months 6 1218243036424854606672
×1000 km 10 20 30 40 50 60 70 80 90 100 110 120
Tire inflation pressure and tire wear IIIIIIIIIIII
Steering operation and linkages I I I I I I I I I I I I
Front and rear suspension, ball joints and wheel
bearing axial play IIIIII
Driveshaft dust boots IIIIII
Bolts and nuts on chassis and body TTTTTT
Exhaust system and heat shields IIIIII
All locks and hinges LLLLLLLLLLLL
Washer fluid level IIIIIIIIIIII
Emergency flat tire repair kit (if equipped)
*3Inspect annually.
Cabin air filter RRR
Chart symbols:
I: Inspect: Inspect and clean, repair, ad just, fill up, or replace if necessary.
R: Replace
L: Lubricate
C: Clean
T: Tighten
D: Drain
Remarks:
*1 Use of FL-22 is recommended when replacing engine coolant. Using engine coolant other than FL-22 may
cause serious damage to the engine and cooling system.
*2 According to state/provincial and fede ral regulations, failure to perform maintenance on these items will not
void your emissions warranties. However, Mazda recomme nds that all maintenance services be performed at
the recommended time or kilometer period to ensure long-term reliability.
*3 Check the tire repair fluid expiration date every year when performing the periodic maintenance. Replace the
tire repair fluid bottle with new one before the expiration date.
▼ Schedule 2
Maintenance Interval Number of months or kilometers, whichever comes first
Months 3 6 9 121518212427303336
×1000 km 5 1015202530354045505560
Drive belts I
Engine oil & filter RRRRRRRRRRRR
Cooling system I
Engine coolant
*1Replace at first 200,000 km or 10 years; after that, every 100,000 km or 5 years
Engine coolant level IIIIIIIIIIII
Air filter CRCRCR
Maintenance and Care
Scheduled Maintenance
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*3 Check the tire repair fluid expiration date every year when performing the periodic maintenance. Replace the
tire repair fluid bottle with new one before the expiration date.

(Cont.)
Maintenance Interval Number of months or kilometers, whichever comes first
Months 39 42 45 48 51 54 57 60 63 66 69 72
×1000 km 65 70 75 80 85 90 95 100 105 110 115 120
Drive belts II
Engine oil & filter RRRRRRRRRRRR
Cooling system II
Engine coolant
*1Replace at first 200,000 km or 10 years; after that, every 100,000 km or 5 years
Engine coolant level IIIIIIIIIIII
Air filter CRCRCR
Fuel lines and hoses I
*2I
Hoses and tubes for emission I
*2I
Fuel filter Replace every 60,000 km
Spark plugs IIIIII
Replace every 120,000 km
Function of all lights IIIIIIIIIIII
Brake lines, hoses and connections II I
Brake and clutch fluid level II I I
Brake fluid RR
Disc brakes IIIIII
Tire (Rotation) Rotate every 10,000 km
Tire inflation pressure and tire wear IIIIII
Steering operation and linkages IIIIII
Front and rear suspension, ball joints and wheel
bearing axial play III
Driveshaft dust boots II I
Bolts and nuts on chassis and body TTT
Exhaust system and heat shields II I
All locks and hinges LLLLLL
Washer fluid level IIIIII
Emergency flat tire repair kit (if equipped)
*3Inspect annually.
Cabin air filter R R R
Chart symbols:
I: Inspect: Inspect and clean, repair, ad just, fill up, or replace if necessary.
Maintenance and Care
Scheduled Maintenance
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R: Replace
L: Lubricate
C: Clean
T: Tighten
D: Drain
Remarks:
*1 Use of FL-22 is recommended when replacing engine coolant. Using engine coolant other than FL-22 may cause serious damage to the engine and cooling system.
*2 According to state/provincial and federal regulations , failure to perform maintenance on these items will not
void your emissions warranties. However, Mazda recomme nds that all maintenance services be performed at
the recommended time or kilometer period to ensure long-term reliability.
*3 Check the tire repair fluid expiration date every year when performing the periodic maintenance. Replace the tire repair fluid bottle with new one before the expiration date.
Maintenance and Care
Scheduled Maintenance
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WA R N I N G
Do not perform maintenance work if you lack sufficient knowledge and experience or the
proper tools and equipment to do the work. Have maintenance work done by a qualified
technician:
Performing maintenance work on a vehicle is dangerous if not done properly. You can be
seriously injured while performing some maintenance procedures.
If you must run the engine while working under the hood, make certain that you remove all
jewelry (especially rings, bracelets, watches, and necklaces) and all neckties, scarves, and
similar loose clothing before getting near the engine or cooling fan which may turn on
unexpectedly:
Working under the hood with the engine ru nning is dangerous. It becomes even more
dangerous when you wear jewelry, loose clot hing or have long hair or a long beard.
Either can become entangled in moving parts and result in injury.
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 runn ing 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 leave items in the engine compartment:
After you have finished checking or doing servicing in the engine compartment, do not forget
and leave items such as tools or rags in the engine compartment.
Tools or other items left in the engine co mpartment could cause engine damage or a
fire
leading to an unexpected accident.
Maintenance and Care
Owner Maintenance
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Overheating
If 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.
WARNING
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 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. Put a vehicle with an automatic transaxle in park (P), a manual
transaxle in neutral.
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 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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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 five 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 fuel tank level being very low or approaching empty.The engine's electrical system has a problem.The emission control system has a problem.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.
Automatic Trans‐
axle Warning Light*
The light illuminates when the transaxle has a problem.
CAUTION
If the automatic transaxle warning light illuminates, the transaxle has an electrical prob‐
lem. Continuing to drive your Mazda in this condition could cause damage to your trans‐
axle. Consult an Authorized Mazda Dealer as soon as possible.
(Turns on)
TCS/DSC Indicator Light If the light stays on, the TCS, DSC or the brak
e assist system may have a malfunction and
they may not operate correctly . Take your vehicle to an Authorized Mazda Dealer.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
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SignalWarning
(Amber)
Mazda Radar Cruise Control with Stop & Go function
(MRCC with Stop & Go function)
Warning Light
*
The warning light turns on if there is a malf unction in the system while the Mazda Radar
Cruise Control with Stop & Go function (MRCC with Stop & Go function) system is on.
Have your vehicle inspected at an Authorized Mazda Dealer.
Blind Spot Monitor ‐
ing (BSM) OFF In ‐
dicator Light
*
A problem in the system may be indicated under the following conditions.
Have your vehicle inspected at an Authorized Mazda Dealer.
The light does not turn on when the ignition is switched ON.The light remains on even wh en the Blind Spot Monitoring (BSM) system can be oper ‐
ated.
The light turns on while driving the vehicle.
NOTE
If the vehicle is driven on a road with less traffic and few vehicles that the radar sensors
can detect, the system may pause (The Blin d Spot Monitoring (BSM) OFF indicator light
in the instrument cluster illuminates). However, it does not indicate a malfunction.
LED Headlight
Warning Light*
This light illuminates if ther e is a malfunction in the LED headlight. Have your vehicle
inspected by 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 wh
en the remaining fuel
is about 9.0 L (2.3 US gal, 1.9 Imp gal).
NOTE
The light illumination timing may vary be‐
cause fuel inside the fuel tank moves around
according to the driving conditions and the
vehicle posture. Add fuel.
Check Fuel Cap Warn
‐
ing Light If the check fuel cap warning light illumi‐
nates while driving, the fuel-filler cap may
not be installed properly.
Stop the engine and re
install the fuel-filler
cap.
Refer to Refueling on page 3-26.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
*Some models.7-33
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Specifications
▼Engine
Item
Specification
Type DOHC-16V in-line, 4-cylinder
Bore × Stroke 83.5 × 91.2 mm (3.29 × 3.59 in)
Displacement 1,997.6 ml (1,997.6 cc)
Compression ratio 13.0
▼Electrical System
Item
Specification
Battery
*1Canada 12V-65Ah/20HR
Except Canada 12V-60Ah/20HR or 12V-65Ah/20HR
Spark-plug number Mazda Genuine spark
plug
*2PE5R-18-110 or PE5S-18-110
*1 Check the battery installed on the vehicle and use a battery
with an equal or higher performance. However, the
performance of the battery may vary even among the sa me battery types, consult an Authorized Mazda Dealer
for replacement.
*2 The spark plugs provide the SKYACTIV-G its optimum performance. Consult an Authorized Mazda Dealer
for details.

CAUTION
When cleaning the iridium plugs, do not use a wire brush. The fine particulate coating on the
iridium alloy and platinum tips could be damaged.
▼ Lubricant Quality
Lubricant
Classification
Engine oil Refer to Recommended Oil on page 6-22.
Coolant FL-22 type
Manual transaxle oil Mazda Long Life Gear Oil G7
*1
Automatic transaxle fluid Mazda Genuine ATF-FZ
Transfer case oil Mazda Long Life Hypoid Gear Oil SG1
Rear differential oil Mazda Long Life Hypoid Gear Oil SG1
Brake fluid/Clutch fluid SAE J1703 or FMVSS116 DOT-3
*1 Mazda Long Life Gear Oil G7 is superior oil for low fuel cost and optimum shift-feel. Using Mazda Long Life
Gear Oil G7 is recommended.
If Mazda Long Life Gear Oil G7 cannot be obtained, use standard oil (API Service GL-4 (SAE 75W-80)).
Specifications
Specifications
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NOTE
Refer to Introduction on (page 6-2) for owner's responsibility in protecting your investment.
▼Capacities
(Approximate Quantities)
Item
Capacity
Engine oil With oil filter replacement
4.2 L (4.4 US qt, 3.7 Imp qt)
Without oil filter replacement 4.0 L (4.2 US qt, 3.5 Imp qt)
Coolant Manual transaxle
5.5 L (5.8 US qt, 4.8 Imp qt)
Automatic transaxle U.S.A. and Canada
5.8 L (6.1 US qt, 5.1 Imp qt)
Mexico 6.0 L (6.3 US qt, 5.3 Imp qt)
Manual transaxle fluid 1.70 L (1.80 US qt, 1.50 Imp qt)
Automatic transaxle fluid 7.8 L (8.2 US qt, 6.9 Imp qt)
Transfer case oil 0.40 L (0.42 US qt, 0.35 Imp qt)
Rear differential oil 0.35 L (0.37 US qt, 0.31 Imp qt)
Fuel tank FWD
48.0 L (12.7 US gal, 10.6 Imp gal)
AWD 45.0 L (11.9 US gal, 9.90 Imp gal)
Check oil and fluid levels with dipsticks or reservoir gauges.
▼Dimensions
U.S.A. and Canada
Item
Vehicle specification
Overall length 4,275 mm (168.3 in)
Overall width 1,765 mm (69.5 in)
Overall height 1,550 mm (61.0 in)
Front tread 1,525 mm (60.0 in)
Rear tread 1,520 mm (59.8 in)
Wheelbase 2,570 mm (101.2 in)

Mexico
ItemVehicle specification
Overall length 4,275 mm (168.3 in)
Overall width 1,765 mm (69.5 in)
Overall height 1,545 mm (60.8 in)
Front tread 1,525 mm (60.0 in)
Rear tread 1,520 mm (59.8 in)
Specifications
Specifications
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