2021 HONDA CR-V cooling

111
uuIndicators uDriver Information Interface Wa rning and Information Messages
Continued
Instrument Panel
MessageConditionExplanation
●Appears if there is a problem with the cooling system.●Drive slowly to prevent overheating and have your
vehicle checked by a dealer as soon as possible.
●Appears when you set the power mode to ON without
fastening the driver's seat belt.●Fasten the seat belt properly before you start to drive.
●Appears when you try to change the transmission
without depressing the brake pedal.●Depress the brake pedal, then change the
transmission.
●Appears when you try to change the transmission
without releasing your foot off the accelerator pedal.●Release your foot off the accelerator pedal, then
change the transmission.
●Appears when the (P button is pressed while the
vehicle is moving.
●Appears if you put the transmission into (R while the
vehicle is moving forward, or into
(D while the vehicle
is reversing.
●Make sure that the vehicle comes to a stop before
operating the shift button.
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uuClimate Control System uUsing Automatic Climate Control
236
Controls
Use the system when the power system is on.
1. Press the AUTO button.
2. Adjust the interior temperature us ing the temperature control dial.
2. Adjust the interior temperature using the dr iver’s side or passenger’s side control
dial.
3. Press the (ON/OFF) button to cancel.1Using Automatic Climate Control
Press the CLIMATE button to display A/C, MODE, and
fan control information on th e audio/information screen
to operate manually. Select icon to turn
On or Off A/C,
change the vent mode, or change the fan speed.
If any buttons are presse d while using the climate
control system in auto, the function of the button
that was pressed will take priority.
The AUTO indicator will go off, but functions
unrelated to the button that were pressed will be
controlled automatically.
To prevent cold air from bl owing in from outside, the
fan may not start i mmediately when the AUTO
button is pressed.
If the interior is very warm, you can cool it down
more rapidly by partial ly opening the windows,
turning the system on auto, and setting the
temperature to low. Change the fresh mode to
recirculation mode until the temperature cools down.
When you set the temperat ure to the lower or upper
limit, Lo or Hi is displayed.
Pressing the button switches the climate
control system between on and off. When turned on,
the system returns to your last selection.
While ECON mode is active, the climate control
system may have reduced cooling performance.
Models with SYNC button
All models
Models without SYNC button
Models with SYNC button
All models
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575
Maintenance
This chapter discusses basic maintenance.
Before Performing MaintenanceInspection and Maintenance ............ 576
Safety When Performing Maintenance ..577Parts and Fluids Used in Maintenance Service ........................................... 578
Maintenance Minder
TM..................... 579
Maintenance Under the Hood Maintenance Items Under the Hood .. 584
Opening the Hood ........................... 585
Recommended Engine Oil ................ 586
Oil Check ......................................... 587
Adding Engine Oil ............................ 588
Changing the Engine Oil and Oil Filter ...589
Cooling System ................................ 591
Transmission Fluid ............................ 593
Brake Fluid ....................................... 594
Refilling Window Wa sher Fluid......... 595
Replacing Light Bulbs ....................... 596
Checking and Maintaining Wiper Blades.. 599Checking and Maintaining Tires
Checking Tires ................................. 604
Tire and Loading Information Label ...... 605Tire Labeling .................................... 605DOT Tire Quality Grading (U.S. Vehicles).. 607Wear Indicators................................ 609
Tire Service Life ................................ 609 Tire and Wheel Replacement ........... 610
Tire Rotation .................................... 611
Winter Tires ..................................... 612
12-volt Battery .................................. 613
Remote Transmitter Care Replacing the Button Battery ........... 615
Climate Control System Maintenance .. 616Cleaning
Interior Care .................................... 617
Exterior Care.................................... 619
Accessories and Modifications .......... 622
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591
uuMaintenance Under the Hood uCooling System
Continued
Maintenance
Cooling System
This coolant is premixed with 50% an tifreeze and 50% water. Do not add any
straight antifreeze or water.
We recommend you check the engine coolant level every time you refuel. Check the
reserve tank first. If it is completely empty, also check the coolant level in the
radiator. Add the engine coolant accordingly.
1. Make sure the engine and radiator are cool.
2. Check the amount of cool ant in the reserve tank.
u If the coolant level is below the MIN
mark, add the specified coolant until it
reaches the MAX mark.
3. Inspect the cooling system for leaks.
Specified coolant: Ho nda Long Life Antifreeze/Coolant Type 2
■Reserve Tank
1Cooling System
NOTICE
Genuine Honda engine coolant is a 50/50 mixture of
antifreeze and water that can withstand freezing at
temperatures as low as about -31°F (-35°C). If your
vehicle is consistently subjected to temperatures below
this, the concentration of antifreeze in the coolant
should be increased. Consult a dealer for details.
If Honda antifreeze/coolant is not available, you may use
another major brand of non-silicate coolant as a
temporary replacement. Check that it is a high quality
coolant recommended for aluminum engines.
Continued use of any non-Honda coolant can result in
corrosion, causing the cooling system to malfunction or
fail. Have the cooling system flushed and refilled with
Honda antifreeze/coolant as soon as possible.
Do not add rust inhibitors or other additives to your
vehicle's cooling system. They may not be compatible
with the coolant or with the engine components.
3WARNING
Removing the radiator cap while the
engine is hot can cause the coolant to spray
out, seriously scalding you.
Always let the engine and radiator cool
down before removing the radiator cap.
Reserve
TankMAX
MIN
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uuMaintenance Under the Hood uCooling System
592
Maintenance
1. Make sure the engine and radiator are
cool.
2. Turn the radiator cap 1/8 turn counter-
clockwise and relieve any pressure in the
cooling system.
3. Push down and turn the radiator cap
counter-clockwise to remove it.
4. The coolant level should be up to the base
of the filler neck. Add coolant if it is low.
5. Put the radiator cap back on, and tighten it
fully.
■Radiator1Radiator
NOTICE
Pour the fluid slowly and ca refully so you do not spill
any. Clean up any spills immediately; they can
damage components in the engine compartment.
Radiator Cap
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616
Maintenance
Climate Control System Maintenance
Air Conditioning
To ensure proper and safe operation, th e Society of Automotive Engineers (SAE
J2845) recommends that the refrigerant system only be serviced by trained and
certified technicians.
Never repair or replace the air conditioning evaporator (cooling coil) with one
removed from a used or salvaged vehicle.
New replacement mobile air conditioning evaporators must be certified (and
labeled) as meeting SAE Standard J2842.
Dust and Pollen Filter
The climate control system is equipped with a dust and pollen filter that collects
pollen, dust, and other debris in the air. The Maintenance MinderTM messages will let
you know when to replace the filter.
We recommend that you replace the dust a nd pollen filter sooner when using your
vehicle in areas with high concentrations of dust.
1 Climate Control System Maintenance
NOTICE
Vented refrigerant is harmful to the environment.
To avoid refrigerant from venting, never replace the
evaporator with one re moved from a used or
salvaged vehicle.
Refrigerant in your vehicle’ s air conditioning system is
flammable and can be igni ted during servicing if
proper procedures are not followed.
The air conditioner labe l is found under the hood:
2 Safety Labels P. 87
2 Specifications P. 666
1Dust and Pollen Filter
If the airflow from the climate control system
deteriorates noticeably, and the windows fog up
easily, the filter may need to be replaced. Please
contact a dealer for replacement.
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649
uuOverheating uHow to Handle Overheating
Handling the Unexpected
■Next thing to do
1.Check that the cooling fan is operating and
turn the power system off once the Stop
Driving When Safe. Engine
Temperature Too Hot message on the
driver information interface disappears.
u If the cooling fan is not operating,
immediately turn the power system off.
2. Once the engine has cooled down, inspect
the coolant level and check the cooling
system components for leaks.
u If the coolant level in the engine coolant
reserve tank is low, add coolant until it
reaches the MAX mark.
u If there is no coolant in the engine
coolant reserve tank, check that the
radiator is cool. Cover the radiator cap
with a heavy cloth an d open the cap. If
necessary, add coolant up to the base of
the filler neck, and put the cap back on.
■Last thing to do
Once the engine has cooled suffici ently, turn the power system on.
If the Stop Driving When Safe. En gine Temperature Too Hot message does not
appear, resume driving. If it appear s again, contact a dealer for repairs.
1How to Handle Overheating
If the coolant is leaking, contact a dealer for repairs.
Use water as an emergency/temporary measure only.
Have a dealer flush the system with proper antifreeze
as soon as possible.
3WARNING
Removing the radiator cap while the
engine is hot can cause the coolant to spray
out, seriously scalding you.
Always let the engine and radiator cool
down before removing the radiator cap.
Engine Coolant Reserve Tank
MAX
MIN
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