2024 MAZDA CX90 engine coolant

5Driving
Mirrors.................................... 5-8Warnings and Cautions for Using
the Mirrors............................ 5-8
How to Use the Outside
Mirrors..................................5-9
Convenient Ways to Use the
Outside Mirrors................... 5-10
Warnings and Cautions for the
Rearview Mirror................... 5-11
How to Use the Rearview
Mirror................................. 5-11
Convenient Ways to Use the
Rearview Mirror................... 5-12
Power Switch..........................5-13 Power Switch....................... 5-13
Warning and Cautions for Using
the Power Switch................. 5-13
How to Use the Power
Switch.................................5-14
e-SKYACTIV PHEV...................5-16 e-SKYACTIV PHEV............... 5-16
e-SKYACTIV PHEV
Overview............................ 5-17
Warning and Cautions for Using
the e-SKYACTIV PHEV.......... 5-19
How to Use the e-SKYACTIV
PHEV.................................. 5-23
Convenient Ways to Use the e-
SKYACTIV PHEV...................5-25
Instrument Cluster.................. 5-27 Instrument Cluster............... 5-27How to Use the Instrument
Cluster................................ 5-28
Convenient Ways to Use the
Instrument Cluster............... 5-31
Speedometer.......................5-31
Tachometer......................... 5-32
Odometer/Trip Meter.......... 5-32
How to Use the Odometer/Trip
Meter................................. 5-33
High Voltage Battery Temperature
Gauge................................. 5-33
Engine Coolant Temperature
Gauge................................. 5-34
High Voltage Battery Power
Gauge................................. 5-34
Fuel Gauge.......................... 5-35
Dashboard Illumination........5-35
How to Use the Dashboard
Illumination.........................5-36
Outside Temperature
Display................................5-37
Maximum Driving Distance
Display................................5-37
Average Electrical Power
Consumption Rate Display ..........
.......................................... 5-38
How to Use the Average Electrical
Power Consumption Rate
Display................................5-38
Average Fuel Economy
Display................................5-39
How to Use the Average Fuel
Economy Display................. 5-39
Instantaneous Electrical Power
Consumption Rate Display ..........
.......................................... 5-40
5-1
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Average fuel economy display
Instantaneous electrical power consumption rate display
Instantaneous fuel economy display
3. High voltage battery temperature gauge Engine coolant temperature gauge
4. i-ACTIVSENSE status symbol (Warning/Risk avoidance support system)
5. Compass display
6. Message display
*1
*1 Displayed only when a warning occurs.
The screen will switch automatically when some i-ACTIVSENSE systems are used.
Driving
Instrument Cluster
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Engine Coolant
Temperature Gauge
Displays the engine coolant
temperature. The blue range of the
gauge indicates that the engine coolant
temperature is low, and the red range
of the gauge indicates that the engine
coolant temperature is high and
overheating.

CAUTION
If the engine coolant temperature
gauge needle is in the red range, there
is the possibility of overheating. Drive
slowly to reduce engine load.
Refer to Taking Action with
Overheating on page 8-20.
High Voltage Battery Powe r G au ge
The remaining power of the high
voltage battery is indicated when the
vehicle power is switched ON.
When the high voltage battery is fully
charged, F is indicated. As the level
lowers, the needle approaches E.

NOTE
After charging, it may require some
time for the needle to stabilize.
The arrow indicates that the
charging port is on the right side.
Driving
Instrument Cluster
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Winter Driving
Carry emergency gear, including tire
chains, window scraper, flares, a small
shovel, jumper cables, and a small bag
of sand or salt.
Ask an Authorized Mazda Dealer to
check the following:
Have the proper ratio of antifreeze in
the radiator.
Refer to Inspecting the Coolant on
page 9-14.
Inspect the battery and its cables.
Cold reduces battery capacity.
Use an engine oil appropriate for the
lowest ambient temperatures that
the vehicle will be driven in (page
9-18).
Inspect the ignition system for
damage and loose connections.
Use washer fluid made with
antifreeze―but do not use engine
coolant antifreeze for washer fluid
(page 9-17).
When driving on ice or in water, snow,
mud, sand, or similar hazards:
Be cautious and allow extra distance
for braking.
Avoid sudden braking and sudden
maneuvering.
Do not pump the brakes. Continue
to press down on the brake pedal.
Refer to Antilock Brake System (ABS)
on page 5-84.
If you get stuck, select a lower gear
and accelerate slowly. Do not spin
the rear wheels.
For more traction in starting on
slippery surfaces such as ice or
packed snow, use sand, rock salt,
chains, carpeting, or other nonslip
material under the rear wheels.
NOTE
Remove snow before driving. Snow
left on the windshield is dangerous
as it could obstruct vision.
Do not apply excessive force to a
window scraper when removing ice
or frozen snow on the mirror glass
and windshield.
Never use warm or hot water for
removing snow or ice from windows
and mirrors as it could result in the
glass cracking.
Drive slowly. Braking performance
can be adversely affected if snow or
ice adheres to the brake
components. If this situation occurs,
drive the vehicle slowly, releasing the
accelerator pedal and lightly applying
the brakes several times until the
brake performance returns to
normal.
Driving
Winter Driving
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Windshield Wipers Operate at High
Speed.................................... 8-34Have the Vehicle Inspected ..........
.......................................... 8-34
Washer Fluid Does Not Spray ...........
............................................ 8-35 Inspecting Washer Fluid
Level................................... 8-35
Active Driving Display Does Not
Operate................................. 8-36 Active Driving Display Does Not
Operate.............................. 8-36
Warning/Indicator Light Turns
On........................................ 8-37 Warning Lights..................... 8-37
Brake System Warning
Light................................... 8-37
Lead-Acid Battery Charging
System Warning Light........... 8-38
Hybrid System Warning
Light................................... 8-39
Remaining High Voltage Battery
Power Warning Light............ 8-39
Charging System Warning
Light................................... 8-40
Output Restriction Warning
Light................................... 8-40
Engine Oil Warning Light...... 8-41
High Engine Coolant Temperature
Warning Light...................... 8-41
Electric Power Steering Warning
Light................................... 8-42
Shift System Warning Light ...........
.......................................... 8-42
ABS Warning Light................8-43
Master Warning Light........... 8-43Brake Control System Warning
Light................................... 8-44
Electric Parking Brake (EPB)
Indicator Light..................... 8-44
Check Engine Warning
Light................................... 8-45
Automatic Transmission Warning
Light................................... 8-45
AWD Warning Light............. 8-46
Tire Pressure Monitoring System
(TPMS) Warning Light
(Flashing)............................ 8-46
TCS/DSC Indicator Light (Turns
on)..................................... 8-47
Air Bag/Seat Belt Pretensioner
System Warning Light........... 8-47
KEY Warning Light (Red)....... 8-48
Security Indicator Light......... 8-48
High Beam Control System (HBC)
Warning Light (Amber)
*........ 8-49
i-ACTIVSENSE Warning
Light................................... 8-49
Exterior Lights Warning
Light................................... 8-50
Low Fuel Warning Light.........8-50
Check Fuel Cap Warning
Light................................... 8-51
Engine Oil Level Warning
Light................................... 8-51
Seat Belt Warning Light (Front
Seat)................................... 8-52
Seat Belt Warning Light (Rear
Seat) (Red).......................... 8-52
Rear Seat Alert Warning Light
*......
.......................................... 8-53
Low Washer Fluid Amount
Warning Light
*..................... 8-53
Door-ajar Warning Light/Liftgate-
open Warning Light/Hood-open
Warning Light...................... 8-54
8-2*Some models.
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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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Engine Oil Warning Light
The light turns on when the engine oil
pressure decreases.
CAUTION
Do not drive the vehicle with the
engine oil warning light turned on.
Driving the vehicle with decreased
engine oil pressure may cause engine
damage.
If the engine oil warning light turns on
while driving, stop the vehicle in a safe
place and stop the hybrid system.
After that, contact an Authorized
Mazda Dealer.
High Engine Coolant
Temperature Warning Light
The light turns on if the engine coolant
temperature has increased excessively.
Check the contents of the message
displayed and take the necessary
action.
CAUTION
Do not drive the vehicle with the high
engine coolant temperature warning
light turned on. Driving the vehicle
with the engine not cooled down may
cause engine damage.
What to Do in Case of Emergency
Warning/Indicator Light Turns On
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