Pressure MAZDA MODEL CX-30 2021 Owner's Guide

CAUTION
In addition, the
effectiveness of the
braking may diminish so you may
need to depress the brake pedal
more strongly than normal to stop
the vehicle.

▼ Electronic Brake Force Distribution
System Warning
If the electronic brake force
distribution control unit determines
that some components are operating
incorrectly, the control unit may
illuminate the brake system warning
light and the ABS warning light
simultaneously. The problem is likely to
be the electronic brake force
distribution system.
WARNING
Do not drive with both the brake
system warning light and ABS warning
light illuminated. Have the vehicle
towed to an Authorized Mazda
Dealer to have the brakes inspected as
soon as possible:
Driving when the brake system warning
light and ABS warning light are
illuminated simultaneously is
dangerous.
When both lights are illuminated, the
rear wheels could lock more quickly in
an emergency stop than under normal
circumstances.
▼
Charging System Warning
Indication/Warning Light
If the warning light illuminates while
driving, it indicates a malfunction of
the alternator or of the charging
system.
Drive to the side of the road 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 because the engine could
stop unexpectedly.
▼Engine Oil Warning Indication/
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
park off the right-of-way on level
ground.
2. Turn off the engine and wait 5
minutes for the oil to drain back
into the oil pan.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
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▼AWD Warning Indication/
Warning Light*
“AWD Malfunction. Front Wheel
Drive Only. Have the Vehicle
Inspected” is displayed/When the
light is turned on
The indication is displayed/the light
turns on under the following
conditions. The system may have a
malfunction. Have the vehicle checked
at an Authorized Mazda Dealer.
When there is a malfunction in the
AWD system.
“Excessive AWD System Load. Drive
Slowly Until Warning Light Turns Off.
Vehicle Now in Front Wheel Drive” is
displayed/When the light is flashing
The indication is displayed/the light
flashes under the fo llowing conditions.
Park the vehicle in a safe place and
check that the warning indication light
turns off/ the warning light stops
flashing , and then drive the vehicle.
Contact an Authorized Mazda Dealer
if the indication is continuously
displayed.
When the differential oil temperature
is excessively high.
When there is a large difference
between the front and rear wheel
rotation, such as when trying to
remove the vehicle from mud.
“Mismatched Tire Diameters. Vehicle
Now in Front Wheel Drive” is
displayed/When the light is turned on
The indication is displayed/the light
turns on under the following
conditions. Inspect the tire sizes or tire
pressures on all 4 wheels. Contact an
Authorized Mazda Dealer if the
indication remains on or the warning
light remains illuminated.
When any of the tire diameter is different.
When any of the tire pressure is
incorrect.
▼ TCS/DSC Indication/Indicator
Light (Turns on)
If the light stays on, the TCS, DSC or
the brake assist system may have a
malfunction and they may not operate
correctly. Take your vehicle to an
Authorized Mazda Dealer.
▼Air Bag/Front Seat Belt
Pretensioner System Warning
Indication/Warning Light
A system malfunction is indicated if the
warning light constantly
flashes,
constantly illuminates or does not
illuminate at all when the ignition is
switched ON. If any of these occur,
consult an Authorized Mazda Dealer
as soon as possible. The system may
not operate in an accident.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
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WARNING
Never tamper with the air bag/
pretensioner systems and always have
an Authorized Mazda Dealer perform
all servicing and repairs:
Self-servicing or tampering with the
systems is dangerous. An air bag/
pretensioner could accidentally
activate or become disabled causing
serious injury or death.
▼Tire Pressure Monitoring System
(TPMS) Warning Indication/
Warning Light (Flashing)
If there is a problem with the TPMS or
the voltage of a tire pressure sensor
decreases, the TPMS warning light
flashes and a message is displayed on
the multi-information display. Have
your vehicle inspected by an
Authorized Mazda Dealer.
WARNING
Do not drive the vehicle at high
speeds if the TPMS warning light turns
on or
flashes:
Driving the vehicle at high speeds
while the TPMS warning light is turned
on or flashing is dangerous because
the brake performance and the
steering wheel operability will be
reduced. If the vehicle is driven at high
speeds or the brakes are suddenly
applied, it could lead to an accident.
Gradually apply the brakes to lower the
vehicle's speed.
Do not ignore the TPMS warning light
when it is turned on or flashing:
Continuing to driv e the vehicle while
ignoring the illumi nation/flashing of
the TPMS warning light is dangerous
because a tire may burst which could
lead to an accident. Take appropriate
measures as soon as possible.
▼ KEY Warning Indication/Warning
Light (Red)
“Keyless Entry System Malfunction.
Have the Vehicle Inspected” is
displayed
This message is displayed if the
advanced keyless entry & push button
start system has a problem.
Contact an Authorized Mazda Dealer.
CAUTION
If the message is indicated, or the push
button start indicator light (amber)
flashes, the engine may not start. If the
engine cannot be started, try starting it
using the emergency operation for
starting the engine, and have the
vehicle inspected at an Authorized
Mazda Dealer as soon as possible.
Refer to Emergency Operation for
Starting the Engine on page 4-9.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
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▼Door-Ajar/Liftgate-Ajar Warning
Indication/Warning Light
The light turns on if any door/liftgate is
not closed securely.
Action to be taken
Close the door/liftgate securely.
▼Tire Pressure Monitoring System
(TPMS) Warning Indication/
Warning Light (Turns on)
If a tire pressure decreases below the
specified air pressure, the TPMS
warning light turns on.
At the same time, a message and the
tire pressure of each tire are displayed
on the multi-information display
alternately. In addition, the tire (s) with
low air pressure is displayed in yellow.
WARNING
Do not drive the vehicle at high
speeds if the TPMS warning light turns
on or
flashes:
Driving the vehicle at high speeds
while the TPMS warning light is turned
on or flashing is dangerous because
the brake performance and the
steering wheel operability will be
reduced. If the vehicle is driven at high
speeds or the brakes are suddenly
applied, it could lead to an accident.
Gradually apply the brakes to lower the
vehicle's speed.
Do not ignore the TPMS warning light
when it is turned on or flashing:
Continuing to driv e the vehicle while
ignoring the illumi nation/flashing of
the TPMS warning light is dangerous
because a tire may burst which could
lead to an accident. Take appropriate
measures as soon as possible.
NOTE
While the TPMS is learning the tire
positions, such as immediately after a
tire position has been changed, the tire
pressure at the tire position prior to it
being changed is displayed until the
system completes the learning. For this
reason, the tire pressures displayed for
the tire positions may be different from
the actual tire pressures at the tire
positions.
Action to be taken
Adjust the tire pressures to the
appropriate pressures.
Refer to Tire Inflation Pressure on page
6-31.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
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CAUTION
Adjust the tire pressures while the
tires are cool. Because the air
pressure in the tires fluctuates
depending on the temperature,
before adjusting the tire pressures,
let the vehicle sit for an hour or drive
it only within a 1.6 km (1 mile)
distance. If the tire pressures are
adjusted while the tires are warm,
the tire pressures may decrease
below the
specified air pressure after
cooling down which could turn on
the warning light. In addition,
because the air pressure in the tires
decreases when the ambient
temperature is low, if the ambient
temperature increases, an
illuminated TPMS warning light may
turn off. Under any circumstances,
always adjust the tire pressures while
the tires are cool.
 After adjusting the tire pressures, the
TPMS warning light turns off. If the
TPMS warning light does not turn
off,
drive the vehicle at a speed of about
25 km (16 mph) or faster for 3
minutes or longer and make sure the
warning light turns off.
If the TPMS warning light remains on
even after adjusting the tire pressures,
one of the tires may have a puncture.
▼ KEY Indicator Light (Green)
(Flashing)
“Low Key Fob Battery. Replace
Battery” is displayed/When the light
is flashing
When the key battery is low, the
indication is displayed when the
ignition is switched OFF.
Action to be taken
Replace the key battery.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
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▼Power Liftgate Warning Beep*
If system operation precautions are
necessary, the driver is notified by the
warning sound.
Warning beep What to check
The beep sounds 3
times The conditions re-
quired for the power
liftgate to operate have
not been met, such as
an object being stuck
in the liftgate.
The beep sound con-
tinues The vehicle is being
driven with the liftgate
open. Stop the vehicle
and close the liftgate.
▼
Low Fuel Warning Beep
When the low fuel warning light
flashes, a warning beep is activated
once at the same time.
▼
Brake Override Warning Beep
A warning beep is activated when the
accelerator pedal and brake pedal are
depressed at the
same time while
driving. Only depress the brake pedal.
▼ Shift Position Warning Beep
A sound is activated when the push
button start is pressed while the
selector lever is in a position other
than P, and the ignition is switched to
ACC. Check the selector lever
position.
▼ Electric Parking Brake (EPB)
Warning Beep
The warning buzzer is activated under
the following conditions:
The vehicle is driven with the parking
brake applied.
The Electric Parking Brake (EPB)
switch is pulled while the vehicle is
driven.
You attempt to start driving the
vehicle while the conditions for
releasing the Electric Parking Brake
(EPB) automatically have not been
met.
▼AUTOHOLD Warning Beep
Warning light flashes/message is
displayed and beep sound is activated
simultaneously for about 5 seconds
when using AUTOHOLD function or
when AUTOHOLD switch is operated.
Because a problem with AUTOHOLD
function has occurred, AUTOHOLD
function does not operate even if
AUTOHOLD switch is operated.

If the warning light flashes/message is
displayed and the beep sound is
activated simultaneously, have your
vehicle inspected at an Authorized
Mazda Dealer.
▼
Vehicle Problem Warning Beep
If any of the following problems occur,
a warning beep is activated. Check the
information regarding the warning
indication in the instrument cluster or
on the center display.
Automatic transmission problemIncrease in automatic transmission
internal temperature
Brake
fluid amount decreaseEngine oil level sensor problemElectric Parking Brake (EPB) problemEngine hydraulic pressure decrease
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
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Tire Labeling
▼Tire Labeling
Federal law requires tire manufacturers
to place standardized information on
the sidewall of all tires. This
information identifies and describes
the fundamental characteristics of the
tire and also provides a tire
identification
number for safety
standard certification and in case of a
recall.
▼ Information on Passenger Vehicle
Tires
Please refer to the sample below.
1. SAFETY WARNING
2. Passenger car tire
3. Nominal width of tire in millimeters
4. Ratio of height to width (aspect
ratio)
5. Radial
6. Run-flat tire
7. Rim diameter code
8. TIN: U.S. DOT tire
identification
number
9. Load index & speed symbol
10.Severe snow conditions
11.Tire ply composition and materials used
12.Max. load rating
13.Tread wear, traction and temperature grades
14.Max. permissible inflation pressure

P215/65R15 95H is an example of a
tire size and load index rating. Here is
an explanation of the various
components of that tire size and load
index rating. Note that the tire size and
load index rating may be different from
the example.
P
Indicates a tire that may be installed on
cars, SUVs, minivans and light trucks as
designated by the Tire and Rim
Association (T&RA).
NOTE
If your tire size does not begin with a
letter this may mean it is designated by
either ETRTO (European Tire and Rim
Technical Organization) or JATMA
(Japan Tire Manufacturing
Association).
215
“215” is the nominal width of the tire
in millimeters. This three-digit number
gives the width in millimeters of the
tire from sidewall edge to sidewall
edge. In general, the larger the
number, the wider the tire.
65
“65” is the aspect ratio. This two-digit
number indicates the tire's ratio of
height to width.
R
“R” is the tire construction symbol. R
indicates “Radial ply construction”.
15
“15” is the wheel rim diameter in
inches.
Customer Information and Reporting Safety Defects
Tire Information (U.S.A.)
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95
“95” is the Load Index. This two-or
three-digit number indicates how
much weight each tire can support.
H
“H” is the speed rating. The speed
rating denotes the maximum speed for
which the use of the tire is rated.
Letter Rating Speed Rating
Q 99 mphR 106 mph
S 112 mph
T 118 mph
U 124 mph
H 130 mph
V 149 mph
W 168
* mph
Y 186
* mph
* For tires with a maximum speed capability over
149 mph, tire manufacturers sometimes use the
letters ZR. For tires with a maximum speed
capability over 186 mph, tire manufacturers
always use the letters ZR.
M+S or M/S: Mud and Snow
AT: All Terrain.
AS: All Season. The “M+S” or “M/S”
indicates that the tire has some
functional use in mud and snow.
U.S. DOT Tire Identification Number
(TIN)
This begins with the letters “DOT”
which indicates the tire meets all
federal standards. The next two
numbers or letters are the plant code
where it was manufactured, and the
last four numbers represent the week
and year the tire was manufactured.
For example, the numbers 457 means
the 45st week of 1997. After 2000 the
numbers go to four digits. For
example, the number 2102 means the
21th week of 2002. The other
numbers are marketing codes used at
the manufacturer's discretion. This
information is used to contact
consumers if a tire defect requires a
recall.
Tire Ply Composition and Materials
Used
The number of plies indicates the
number of layers of rubber-coated
fabric in the tire. In general, the greater
the number of plies, the more weight a
tire can support. Tire manufacturers
also must indicate the tire materials,
which include steel, nylon, polyester,
and other.
Maximum Load Rating
This number indicates the maximum
load in kilograms and pounds that can
be carried by the tire.
Maximum Permissible Inflation
Pressure
This number is the greatest amount of
air pressure that should ever be put in
the tire under normal driving
conditions.
Customer Information and Reporting Safety Defects
Tire Information (U.S.A.)
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Tread Wear, Traction and Temperature
Grades
Trea d wea r : The tread wear grade is a
comparative rating based on the wear
rate of the tire when tested under
controlled conditions on a specified
government test course. For example,
a tire graded 150 would wear one and
one-half (1 1/2) times as well on the
government course as a tire graded
100.
Tra c t i o n : The traction grades, from
highest to lowest are AA, A, B, and C.
The grades represent the tire's ability
to stop on wet pavement as measured
under controlled conditions on
specified government te
st surfaces of
asphalt and concrete. A tire marked C
may have poor traction performance.
Temperature: The temperature grades
are A (the highest), B and C,
representing the tire's resistance to the
generation of heat and its ability to
dissipate heat when tested under
controlled conditions on a specified
indoor laboratory test wheel.
Snow Tires
In some heavy snow areas, local
governments may require true snow
tires, those with very deeply cut tread.
These tires should only be used in pairs
or placed on all four wheels. Make
sure you purchase snow tires that are
the same size and construction type as
the other tires on your vehicle.
SAFETY WARNING
The following safety warning appears
on the tire's sidewall.
SERIOUS INJURY MAY RESULT FROM:
EXPLOSION OF TIRE/RIM ASSEMBLY
DUE TO IMPROPER
MOUNTING-MATCH TIRE
DIAMETER TO RIM DIAMETER;
NEVER EXCEED 40 psi (275 kPa) TO
SEAT BEADS-ONLY SPECIALLY
TRAINED PERSONS SHOULD
MOUNT TIRES.
TIRE FAILURE DUE TO UNDER-INFLATION/
OVERLOADING/DAMAGE-FOLLOW
OWNER'S MANUAL AND PLACARD
IN VEHICLE-FREQUENTLY CHECK
INFLATION PRESSURE AND INSPECT
FOR DAMAGE.
▼ Information on Temporary Tires
Please refer to the sample below.
1. Temporary tires
2. Nominal width of tire in millimeters
3. Ratio of height to width (aspect
ratio)
4. Diagonal
5. Rim diameter code
6. Load index & speed symbol

Customer Information and Reporting Safety Defects
Tire Information (U.S.A.)
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Location of the Tire Label(Placard)
▼Location of the Tire Label (Placard)
You will find the tire label containing
tire
inflation pressure by tire size and
other important information on the
driver's side B-pillar or on the edge of
the driver's door frame.

SAMPLE
▼ Recommended Tire Inflation
Pressure
On the tire label you will find the
recommended tire
inflation pressure in
both kPa and psi for the tires installed
as original equipment on the vehicle. It
is very important that the inflation
pressure of the tires on your vehicle is
maintained at the recommended
pressure. You should check the tire
pressure regularly to insure that the
proper inflation pressure is maintained.
Refer to Tires on page 9-8.
NOTE
Tire pressures listed on the vehicle
placard or tire information label
indicate the recommended cold tire
inflation pressure, measured when the
tires are cold, after the vehicle has
been parked for at least 3 hours. As
you drive, the temperature in the tire
warms up, increasing the tire pressure.
WARNING
Always check the tire inflation
pressures on a regular basis according
to the recommended tire inflation
pressure on the tire label and in
conjunction with the information in
this owner's manual:
Driving your vehicle with
under-inflated tires is dangerous.
Under-inflation is the most common
cause of failures in any kind of tire and
may result in severe cracking , tread
separation or “blowout”, with
unexpected loss of vehicle control and
increased risk of injury. Under-inflation
increases sidewall flexing and rolling
resistance, resulting in heat buildup
and internal damage to the tire. It
results in unnecessary tire stress,
irregular wear, loss of control and
accidents. A tire can lose up to half of
its air pressure and not appear to be
flat!
It is impossible to determine whether
or not tires are properly inflated just by
looking at them.
▼ Checking Tire Pressure
1. When you check the air pressure,
make sure the tires are cold
―meaning they are not hot from
driving even a mile.
2. Remove the cap from the valve on
one tire.
3. Firmly press a tire gauge onto the valve.
4. Add air to achieve recommended air pressure.
5. If you overfill the tire, release air by pushing on the metal stem in the
center of the valve. Then recheck
the pressure with your tire gauge.
6. Replace the valve cap.
7. Repeat with each tire, including the spare.
Customer Information and Reporting Safety Defects
Tire Information (U.S.A.)
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