2024 MAZDA CX90 is low

Inspect the antifreeze protection and
coolant level in the coolant reservoir at
least once a year―at the beginning of
the winter season ―and before
traveling where temperatures may drop
below freezing.

Inspect the condition and connections
of all cooling system and heater hoses.
Replace any that are swollen or
deteriorated.

There are two cooling circuits: one for
the automatic transmission, and the
other for the engine. Check both
circuits.
The coolant should be at full in the
radiator and between the F and L
marks, and between the FULL and
LOW marks on the coolant reservoir
when the engine is cool.
There are two coolant reservoir tanks.
Check each of them.
1. The tank for the EV system
2. The tank for the engine

If it is at or near the LOW position, add
enough coolant to the coolant
reservoir to provide freezing and
corrosion protection and to bring the
level to FULL.
Securely tighten the coolant reservoir
tank cap after adding coolant.
CAUTION
 Radiator coolant will damage paint.
Rinse it off quickly if spilled.
 If the “FL22” mark is shown on or
near the cooling system cap, 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.

If the coolant reservoir is empty or new
coolant is required frequently, consult
an Authorized Mazda Dealer.
Inspection and Servicing/Cleaning
Engine Compartment Inspection
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Inspecting the Brake Fluid
WARNING
If the brake fluid level is low, have the
brakes inspected.
A low brake fluid level is dangerous. A
low level could indicate brake lining
wear or a brake system leak which
could cause the brakes to fail and lead
to an accident.
Inspect the fluid level in the reservoir
regularly. It should be kept between
the MAX and MIN lines.
The level normally drops with
accumulated distance, a condition
associated with wear of brake linings. If
it is excessively low, have the brake
system inspected by an Authorized
Mazda Dealer.

Before inspecting the brake fluid,
remove the hole cover.
Removing the Hole Cover.
1.
2.
3.

Installing the Hole Cover.
1. Insert the hole cover into the cowlgrille.
Make sure that the hole cover holds
the cowl grille and the knobs are in
the correct position.
1. The hole cover
2. The cowl grille
2.

Inspection and Servicing/Cleaning
Engine Compartment Inspection
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Brake fluid reservoirReplenishing WindshieldWasher Fluid
WARNING
Use only windshield washer fluid or
plain water in the reservoir.
Using radiator antifreeze as washer
fluid is dangerous. If sprayed on the
windshield, it will dirty the windshield,
affect your visibility, and could result in
an accident.
Using Washer Fluid Without
Anti-freeze Protection in Cold
Weather:
Operating your vehicle in temperatures
below 4 ℃ (40 °F) using washer fluid
without anti-freeze protection is
dangerous as it could cause impaired
windshield vision and result in an
accident. In cold weather, always use
washer fluid with anti-freeze
protection.
CAUTION
Do not use soapy water or engine
antifreeze in the reservoir as it could
cause paint discoloration or pump
damage.
NOTE
State or local regulations may restrict
the use of volatile organic
compounds (VOCs), which are
commonly used as anti-freeze agents
in washer fluid. A washer fluid with
limited VOC content should be used
only if it provides adequate freeze
resistance for all regions and climates
in which the vehicle will be
operated.
Inspection and Servicing/Cleaning
Engine Compartment Inspection
9-17
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Replenish the washer fluid on a flat
surface. If the vehicle is tilted, washerfluid may not fill sufficiently.
Add washer fluid under any of the
following conditions.
The top of the fluid level is low.The Low Washer Fluid Level Warning
Indication/Warning Light (if
equipped) turns on.
The top of the fluid level is lower
than L (if equipped).

Use plain water if washer fluid is
unavailable.
But use only washer fluid in cold
weather to prevent it from freezing.
Inspecting Lead-acid
Battery
WARNING
Read the following
precautions carefully before using the
lead-acid battery or inspecting to
ensure safe and correct handling.
Always wear eye
protection when working near the
lead-acid battery.
Working without eye protection is
dangerous. Lead-acid battery fluid
contains SULFURIC ACID which could
cause blindness if splashed into your
eyes. Also, hydrogen gas produced
during normal lead-acid battery
operation, could ignite and cause the
lead-acid battery to explode.
Wear eye protection
and protective gloves to prevent
contact with lead-acid battery fluid.
Spilled lead-acid battery fluid is
dangerous.
Lead-acid battery fluid contains
SULFURIC ACID which could cause
serious injuries if it gets in eyes, or on
the skin or clothing. If this happens,
immediately flush your eyes with water
for 15 minutes or wash your skin
thoroughly and get medical attention.
Inspection and Servicing/Cleaning
Engine Compartment Inspection
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Always keep lead-acid
batteries out of the reach of children.
Allowing children to play near
lead-acid batteries is dangerous.
Lead-acid battery fluid could cause
serious injuries if it gets in the eyes or
on the skin.
Keep flames and sparks
away from lead-acid battery cells and
do not allow metal tools to contact
the positive (+) or negative (-)
terminal of the lead-acid battery
when working near a lead-acid
battery. Do not allow the positive (+)
terminal to contact the vehicle body.
Flames and sparks near lead-acid
battery cells are dangerous. Hydrogen
gas, produced during normal lead-acid
battery operation, could ignite and
cause the lead-acid battery to explode.
An exploding lead-acid battery can
cause serious burns and injuries. Keep
all flames including cigarettes and
sparks away from lead-acid battery
cells.
Keep all flames and
sparks away from lead-acid battery
cells because hydrogen gas is
produced from lead-acid battery cells
while charging the lead-acid battery
or adding lead-acid battery fluid.
Flames and sparks near lead-acid
battery cells are dangerous. Hydrogen
gas, produced during normal lead-acid
battery operation, could ignite and
cause the lead-acid battery to explode.
An exploding lead-acid battery can
cause serious burns and injuries. Keep
all flames including cigarettes and
sparks away from lead-acid battery
cells.

Before performing lead-acid battery
maintenance, remove the hole cover
and the lead-acid battery cover.
Removing the Hole Cover
1.
2.
Inspection and Servicing/Cleaning
Engine Compartment Inspection
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Checking the Inspection
Locations and Inspection Items
Front
Rear
1. Windshield wipers
2. Tires
3. Light bulbs
Replacing Windshield
Wiper Blade Rubbers
CAUTION
 Hot waxes applied by automatic car
washers have been known to
affect
the wiper's ability to clean windows.
 An operation malfunction may occur
or the wiper
effectiveness may be
reduced if a water-repellent coating
is used.
 To prevent damage to the wiper
blades, do not use gasoline,
kerosene, paint thinner, or other
solvents on or near them.
 When the wiper lever is in the AUTO
position and the vehicle power is
switched ON, the wipers may move
automatically in the following cases:
 If the windshield above the rain
sensor is touched.
 If the windshield above the rain
sensor is wiped with a cloth.
 If the windshield is struck with a
hand or other object.
 If the rain sensor is struck with a
hand or other object from inside
the vehicle.
Be careful not to pinch hands or fingers as it may cause injury, or
damage the wipers. When washing
or servicing the vehicle, make sure
the wiper lever is in the OFF
position.
 Before lifting the windshield wiper
blades
off the windshield, always
follow the procedure for moving the
windshield wiper blades. Otherwise,
a wiper blade, wiper arm, or the
hood could be damaged.
Inspection and Servicing/Cleaning
Vehicle Exterior Inspection
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Contamination of either the
windshield or the blades with foreign
matter can reduce wiper effectiveness.
Common sources are insects, tree sap,
and hot wax treatments used by some
commercial car washes.
If the blades are not wiping properly,
clean the window and blades with a
good cleaner or mild detergent; then
rinse thoroughly with clean water.
Repeat if necessary.
NOTE
You can replace the wiper blades
yourself, however you cannot replace
the wiper arms.
If you want to replace the wiper arms,
consult an Authorized Mazda Dealer.

Replacing Front Windshield Wiper
Blade rubbers
1. Move the wipers to the servicepositions using the following
procedure.
a) Switch the vehicle power ON.
b) Switch the vehicle power OFF.
c) Press up the wiper switch to theMIST position 2 times within 30
seconds after switching the
vehicle power OFF.
When the procedure is
completed, the wipers operate
and they stop at the service
positions.
2. Raise the wiper arms.
3. Slide the blade component in the direction of the arrow while
pressing the wiper arm tab to
remove the blade component from
the wiper arm.
4.
Inspection and Servicing/Cleaning
Vehicle Exterior Inspection
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5.
6.
7.
8. Make sure that the blade rubber iscorrectly installed to the blade
holder.
9.
10.Slowly lower the wiper arms onto the windshield.
CAUTION
To prevent damage to the
windshield let the wiper arm down
easily, do not let it slap down on
the windshield.
11.Move the wipers to their initial positions using the following
procedure.
a) Make sure that the wipers are set
on the windshield.
b) Switch the vehicle power ON.
Inspection and Servicing/Cleaning
Vehicle Exterior Inspection
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