2021 MAZDA MODEL 3 HATCHBACK check engine

SignalWarning Refer to
Air Bag/Front Seat Belt Pretensioner System Warning Indication/
Warning Light*17-32
Tire Pressure Monitoring System (TPMS) Warning Indication/Warning
Light*1
Flashing
7-33
Tu r n s o n 7-37
(Red) KEY Warning Indication/Warning Light
*17-33
(Amber)
*High Beam Control System (HBC) Warning Indication/Warning
Light*17-34
i-ACTIVSENSE Warning Indication/Warning Light*17-34
Exterior Light Warning Indication/Warning Light*17-34
Low Fuel Warning Indication/Warning Light 7-35
Check Fuel Cap Warning Indication/Warning Light*17-35
Engine Oil Level Warning Indication/Warning Light*17-35
Seat Belt Warning Indication/Warning Light (Front seat) 7-36
(Red)Seat Belt Warning Light (Rear seat)
7-36
*Low Washer Fluid Level Warning Indication/Warning Light7-36
Door-Ajar Warning Indication
7-37
*Trunk lid-Ajar Warning Indication7-37
When Driving
Instrument Cluster and Display
4-24*Some models.
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-20H_Edition1_new 2020-7-10 17:21:34

SignalWarning Refer to
*Liftgate-Ajar Warning Indication 7-37
Door-Ajar Warning Light
7-37
*1 The light turns on when the ignition is switched on for an operation check, and turns off a few
seconds later or when the engine is started. If the light does not turn on or remains turned on, have
the vehicle inspected at an Authorized Mazda Dealer.
▼ Indication/Indicator Lights
These lights turn on or
flash to notify the user of the system operation status or a
system malfunction.
Signal Indicator Refer to
(Green)Seat Belt Indicator Light (Rear seat)
2-27
*Front Passenger Air Bag Deactivation Indicator Light2-71
Security Indicator LightImmobilizer
System3-41
Theft-Deterrent System
3-42
Malfunction 7-34
(Green) KEY Indicator Light
4-5
Wrench Indication/Indicator Light*14-29
*Shift Position Indication4-38
Lights-On Indicator Light
4-46
When Driving
Instrument Cluster and Display
*Some models.4-25
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SignalIndicator Refer to
(Green)
*Cruise Set Indication 4-215
*1 The light turns on when the ignition is switched on for an operation check, and
turns off a few seconds later or when the engine is started. If the light does not
turn on or remains turned on, have the vehicle inspected at an Authorized
Mazda Dealer.
*2 The light turns on continuously when the parking brake is applied.
When Driving
Instrument Cluster and Display
4-28*Some models.
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Shift-Lock System
▼Shift-Lock System
The shift-lock system prevents shifting
out of P unless the brake pedal is
depressed.

To s h i f t f r o m
P:
1. Depress and hold the brake pedal.
2. Start the engine.
3. Press and hold the lock-release button.
4. Move the selector lever.
NOTE
When the ignition is switched to
ACC or the ignition is switched off,
the selector lever cannot be shifted
from P position.
The ignition cannot be switched to
OFF if the selector lever is not in P
position.
▼ Shift-Lock Override
If the selector lever will not move from
P position using the proper shift
procedure, continue to hold down the
brake pedal.
1. Remove the shift-lock override
cover using a cloth-wrapped flat
head screwdriver.
2. Insert a flat screwdriver and push it
down.

1. Cover

3. Press and hold the lock-release button.
4. Move the selector lever.
Take the vehicle to an Authorized
Mazda Dealer to have the system
checked.
When Driving
Automatic Transmission
4-36
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▼Setting the System
The MRCC with Stop & Go function system operates when all of the following
conditions are met.
Vehicle speed is 0 km/h (0 mph) to 145 km/h (90 mph)The MRCC with Stop & Go function is turned on.The brake pedal is not depressed.The parking brake is released (Electric Parking Brake (EPB) indicator light is turned
o
ff).
There is no problem with the DSC.All the doors are closed.The driver's seat belt is fastened.The selector lever is in the drive (D) position or manual (M) position (manual
mode).
NOTE
In the following cases, the MRCC with Stop & Go function system is canceled
when the vehicle is traveling at 30 km/h (20 mph) or less and “Mazda Radar
Cruise Control Disabled Under 30 km/h” is displayed in the multi-information
display.
The Forward Sensing Camera (FSC) canno t detect target objects (There is
problem with the Forward Sensing Camera (FSC) or windshield is dirty).
There is a problem with the stop hold control function.There is a problem with the Electric Parking Brake (EPB).It may not be possible to set the MRCC with Stop & Go function system directly
after starting the engine, while the DSC operation is being checked.
Turning on the system
1. CANCEL switch
2. RES switch
3. MRCC switch

When Driving
i-ACTIVSENSE
4-133
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Operating Tips
▼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 e
fficiency.
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 o ff 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.
(With A/C switch)
Run the air conditioner 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 e fficient.
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 serious
malfunction of the air conditioner.
Consult a professional, government certi fied repairer for the inspection
or repair because a special device is
required for the air conditioner
maintenance.
For details, consult an Authorized
Mazda Dealer.
1. Label
Interior Features
Climate Control System
5-2
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Maintenance ItemNumber of times, maintenance was performed.
12345678
B ra ke lin es, h ose s a nd c onnectio ns IIII
Vacuum brake booster and
hose With vac-
uum booster
IIII
Brake and clutch fluid level IIIIIIII
Brake fluid With electri-
cal booster
RRRR
Disc brakes IIIIIIII
Tire rotation Rotate every 16,000 km (10,000 miles).
Tire in flation pressure and tire wear
*4IIIIIIII
S te erin g o pera tio n a nd lin ka ge s IIII
Front and rear suspension, ball joints and
wheel bearing axial play IIII
D riv e sh aft d ust b oo t IIII
Bolts and nuts on chassis and body TTTT
Exhaust system and heat shields II
Emergency flat tire repair kit (if equipped)
*5Inspect annually.
Cabin air filter Replace every 48,000 km (30,000 miles) or 24
months.
Function of all lights IIIIIIII
Chart symbols:
I : Inspect: Inspect and clean, repair, adjust, fill up, or replace if necessary.
R : Replace
T: Tighten
Remarks:
*1 Reset the engine oil data whenever replacing the engine oil regardless of the message/wrench indicator light display.
*2Use 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.
*3 According to state/provincial and federal regulations, failure to perform maintenance on these items will not void your emissions warranties. However, Mazda recommends that all maintenance services
be performed at the recommended time or mileage/kilometer period to ensure long-term reliability.
*4 Inspect a spare tire if equipped.*5Check the tire repair fl uid 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
6-5
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Chart symbols:
I: Inspect: Inspect and clean, repair, adjust, fill up, or replace if necessary.
R : Replace
C : Clean
L : Lubricate
T: Tighten
Remarks:
*1 Reset the engine oil data whenever replacing the engine oil regardless of the message/wrench indicator light display.
*2 If you drive your vehicle under any of the following conditions, replace the engine oil & filter every
8,000 km (5,000 miles) or 6 months, whichever comes first.
1. The vehicle is idled for long periods or driven at low speeds, such as with police cars, taxis, or
driver's education school vehicles.
2. Driving under dusty conditions.
3. Driving for long periods in cold temperatures or driving regularly for short distances only.
4. Driving under extremely high temperature conditions.
5. Driving continuously in mountainous regions.
*3 Also inspect the air conditioner drive belts, if equipped.
If the vehicle is operated primarily under any of the following conditions, inspect the drive belts more
often than the recommended intervals.
a) Driving under dusty conditions.
b) The vehicle is idled for long periods or driven at low speeds.
c) Driving for long periods in cold temperatures or driving regularly for short distances only.
d) Driving under extremely high temperature conditions.
e) Driving continuously in mountainous regions.
f) Driving for long period in extremely wet or heavy rain condition.
*4Use of FL -22 is recommended when replacing engine c oolant. Using engine coolant other than FL-22
may cause serious damage to the engine and cooling system.
*5 According to state/provincial and federal regulati ons, failure to perform maintenance on these items
will not void your emissions warranties. However, Mazda recommends that all maintenance services
be performed at the recommended time or mileage/kilometer period to ensure long-term reliability.
*6 Inspect a spare tire if equipped.*7Check the tire repair fl uid expiration date every year when performing the periodic maintenance.
Replace the tire repair fluid bottle with a new one before the expiration date.
Maintenance and Care
Scheduled Maintenance
6-8
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