2024 MAZDA CX90 cooling

The display indicates whether
recirculate mode (
) or fresh air
mode (
) is selected.
WARNING
Do not recirculate the air in the cabin
during cold or rainy weather.
Recirculating the air in the cabin during
cold and rainy weather is dangerous as
it will cause the windows to fog up.
Your vision will be hampered, which
could lead to a serious accident.
Recirculate mode (
)
Outside air is shut off. Air within the
vehicle is recirculated. Use this
position when going through tunnels,
driving in congested traffic (high engine
exhaust areas) or when quick cooling is
desired.
Fresh air mode (
)
Outside air is allowed to enter the
cabin.
Use this mode for ventilation or
windshield defrosting.
NOTE
The recirculated air position is the
default position whenever the
ignition is switched ON, the climate
control system is on, and the outside
temperature exceeds about 73 °F
(23 ℃).
To exit the default recirculated air
position, press the air intake selector
switch to select the outside air
position.
When the air intake selector switch is
set to the outside air position and
the outside temperature exceeds
about 73 °F (23 ℃), the climate
control system may automatically
select the recirculated air position to
improve the efficiency of the climate
control system.
Mode selector switch
The desired airflow mode can be
selected.
The mode changes each time the
switch is pressed. The selected mode is
indicated on the display.
NOTE
To set the air vent to press the
windshield defroster switch.
Fan control switch
How to increase the airflow amount
Equipment to Make Cabin More Comfortable
Fully Automatic Climate Control (Front)
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During the cabin preconditioning
operation, the cooling fan, the
compressor, and the cabin fans
operate, but this does not indicate a
problem.
 The climate control system functions
you can use
differ depending on the
vehicle power position.
Function Vehicle power position
OFF ACC ON
(Hy- brid sys-
tem off) ON
(Hy- brid sys-
tem on)
Air circulation — — X X
Cooling/heating — — X
*1X
Climate Control
Timer X———
Remote climate
control X———
X: Available
—: Not available
*1 The cooling/heating function can
be used only while charging.
NOTE
The recommended set temperature
is 22 °C (72 °F). If you set an
extremely high or low temperature,
power consumption will increase
and the charging time will take
longer.
If you operate the cabin
preconditioning while the charge
connector is connected, you can
reduce the electric power
consumption of the high voltage
battery.
While the cabin preconditioning is
operating , the indicator light for the
climate control power switch turns
on.
The cabin preconditioning operates
for 20 minutes. If you set the
departure time using the climate
control timer, set it 20 minutes or
later from the current time and if you
want to make several settings, space
them out at intervals of 30 minutes
or longer.
How to set the Climate Control Timer
1. Select “Settings” from the Mazda Connect home screen.
2. Select “EV Settings”.
3. Select “Climate Control Timer”.
4. Select the item setting you would like to change from the displayed
content.
5. Switch the vehicle power OFF.
Climate Control Timer
Allows climate control to adjust cabin
temperature before driving.
Function Available setting changes
1 ---
Enable,
Disable
*1Edit,
Delete*2
2 ---
3 ---
4 ---
5 ---
6 ---
7 ---
*1 If an item selected using the cursor has been set, the item can be
enabled or disabled.
*2 Settings can be “Edit”/“Delete” bysliding an item selected using the
cursor to the right.
Equipment to Make Cabin More Comfortable
Fully Automatic Climate Control (Front)
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Do not use the AC power outlet if it
is damaged. If part replacement or
repair is required, consult an
Authorized Mazda Dealer.
 Do not charge the vehicle from the
AC power outlet.
Do not use electrical appliances that
emit steam with the windows closed.
Otherwise, steam could negatively
affect the vehicle’s electrical
accessories.
Close the hood while using the AC
power outlet.
When using the AC power outlet, the
cooling fan in the engine compartment
could operate automatically resulting
in an accident.
CAUTION
 Always close the cover when it is not
in use. If foreign matter or liquid
penetrates the AC power outlet, it
may cause a problem.
 Insert electrical appliance plugs into
the AC power outlet securely. If the
plug is not inserted securely, it may
heat excessively and blow a fuse.
 Do not connect multiple electrical
appliances to the AC power outlet.
Otherwise, it could cause smoking or
combustion.
 Do not use electrical appliances that
exceed the prescribed power
capacity. Otherwise, it could cause a
malfunction.
 Do not refuel while the AC Power
Outlet is in use.
 Do not use heat appliances such as a
stove in the cabin. Otherwise, the
interior parts may melt or burn due
to heat.
How to Use the AC
Power Outlet (120 V/ 1,500 W)
Before using the electrical appliance,
always follow the precautions
indicated in the instruction manual for
the electrical appliance to be used.
Connecting
1. Press the power switch 2 timeswithout depressing the brake pedal.
2.
The indicator light flashes and turns
on when it is ready to be used.
NOTE
If the indicator light turns off after
flashing , there may be a problem
with the system. Contact an
Authorized Mazda Dealer.
3.
Open the lid and connect the
electrical appliance to be used.
Disconnecting
Press the switch again to turn off the
indicator light. Then disconnect the
electrical appliance.
Other Equipment
Accessory Sockets
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TTW and GCWR
The total trailer weight (TTW), gross combination weight rating (GCWR), gross axle
weight rating (GAWR), trailer load, and trailer tongue load must be within the
prescribed limits.
The total trailer weight (TTW) is the sum of the weights of the trailer load (trailer
weight plus cargo). Never allow the total trailer weight (TTW) to exceed specifications in the Trailer towing-load table.
The maximum GCWR is the combination weight of the trailer and load plus the
towing vehicle (including trailer hitch, vehicle passengers, and load). It must not
exceed the specifications in the load table.
GAWR and GVWR
Do not exceed front and rear GAWR (gross axle weight rating) and GVWR (gross
vehicle weight rating). If you do, vehicle handling , braking , and performance will be
affected. These values are also on the Motor Vehicle Safety Standard Label posted
on the driver's door frame.
Trailer frontal area table
Frontal area is the total area that a moving vehicle and trailer exposes to air
resistance. Exceeding this limit may reduce the performance of your towing vehicle.
(U.S.A. and Canada)
Limitation items Limit values
MAX. FRONTAL AREA
2.79 m2 (30 ft2)
Before driving
Have your cooling and braking system checked by an Authorized Mazda Dealer.Before starting out, inspect the operation of all vehicle and trailer lights and all
vehicle-to-trailer connections. Stop and re-inspect all lights and connections after
driving a short distance.
Trailer hitch
Use only a hitch ball recommended by the trailer manufacturer that conforms to the
gross trailer weight requirement.
When not towing a trailer, remove the trailer hitch (if detachable) to reduce the
possibility of damage as a result of the vehicle being rear-ended.
Tires
When towing a trailer, make sure that the tire pressures of the rear tires are at 20
kPa (0.2 bar, 2.9 psi) higher than the recommended tire pressures indicated on
the tire pressure chart on the driver's door frame.
Other Equipment
Towing (U.S.A. and Canada)
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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 le ad-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.
Do not jump-start a frozen lead-acid battery or one with a low fluid level.
Jump-starting a frozen lead-acid battery or one with a low fluid level is dangerous. It
may rupture or explode, causing serious injury.
Connect the negative cable to a good ground point away from the lead-acid
battery.
Connecting the end of the second jumper cable to the negative (–) terminal of the
depleted lead-acid battery is dangerous.
A spark could cause the gas around the lead-acid battery to explode and injure
someone.
Route the jumper cables away from parts that will be moving.
Connecting a jumper cable near or to moving part (cooling fans) is dangerous. The
cable could get caught when the hybrid system 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).
 Do not use your vehicle as a booster vehicle to prevent damaging your vehicle.
1. Make sure that the vehicle power is switched OFF.
What to Do in Case of Emergency
Engine Does Not Start
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Ta k i n g A c t i o n w i t hOverheating
If the engine coolant temperature
gauge indicates overheating and the
high engine coolant temperature
warning light is displayed, 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 vehicle power 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.

1. Drive safely to the side of the road and park off the right-of-way.
2. Shift into park (P).
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 it is low, look for coolant leaks
from the radiator and hoses.

What to Do in Case of Emergency
Overheating
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If you find a leak or other damage, or
if coolant is still leaking:
Stop the engine and call an Authorized
Mazda Dealer.
1. Cooling system cap
2. Coolant reservoir
3. Cooling fan
4. Radiator
If you find no problems, the engine is
cool, and no leaks are obvious:
Carefully add coolant as required
(page 9-14).
CAUTION
If the engine continues to overheat or
frequently overheats, have the cooling
system inspected. The engine could be
seriously damaged unless repairs are
made. Consult an Authorized Mazda
Dealer.
What to Do in Case of Emergency
Overheating
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Maintenance ItemNumber of times, maintenance was performed.
12345678
Disc brakes IIIIIIII
Steering operation and linkages II II
Front and rear suspension, ball joints and
wheel bearing axial play IIII
Body condition inspection for
rust, corrosion and perfora-
tion Canada IIIIIIII
Driveshaft dust boot II II
Bolts and nuts on chassis and body TTT T
Cabin air filter Replace every 48,000 km (30,000 miles) or 24 months.
Tire rotation Rotate every 12,000 km (7,500 miles).
Tire inflation pressure and tire wear
*4Inspect every 12,000 km ( 7,500 miles) or 12 months.
Emergency flat tire repair kit (if equipped)
*5Inspect annually.
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.
*2 According to state/provincial and federal regulations, failure to perform maintenance on these itemswill 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.
*3 Use of FL-22 is recommended when replacing coolant. Using coolant other than FL-22 may causeserious damage to the engine and cooling system.
*4 Inspect a spare tire if equipped.*5 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.
Inspection and Servicing/Cleaning
Scheduled Maintenance
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