engine HONDA CIVIC 2023 Owners Manual

uuMaintenance Under the Hood uEngine Coolant
722
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.
■Radiator1Engine Coolant
Do not add rust inhibitors or other additives to your
vehicle's cooling system. Th ey may not be compatible
with the coolant or with the engine components.
1 Radiator
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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723
uuMaintenance Under the Hood uEngine Coolant
Continued
Maintenance
Engine Coolant
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. Add the engine coolant accordingly.
1. Make sure the engine and radiator are cool.
2. Check the amount of coolant 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
■Checking the Coolant
Models without Auto Idle Stop
1Engine Coolant
NOTICE
Genuine Honda engine coolan t 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 anti freeze/coolant as soon as
possible.
3WARNING
Removing the reserve tank 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 reserve tank
cap.
Reserve Tank
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uuMaintenance Under the Hood uEngine Coolant
724
Maintenance
1. Make sure the engine and radiator are
cool.
2. Turn the reserve tank cap 1/8 turn counter-
clockwise and relieve any pressure in the
cooling system.
3. Push down and turn the reserve tank cap
counter-clockwise to remove it.
4. Pour coolant into the reserve tank until it
reaches the MAX mark.
5. Put the reserve tank cap back on, and
tighten it fully.
■Adding the Coolant1Engine Coolant
Do not add rust inhibitors or other additives to your
vehicle's cooling system. Th ey may not be compatible
with the coolant or with the engine components.
1 Adding the Coolant
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.
Reserve Tank Cap
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727
uuMaintenance Under the Hood uRefilling Window Washer Fluid
Maintenance
Refilling Window Washer Fluid
Check the amount of window washer fluid.
If the level is low, fill the washer reservoir.
If the washer fluid is low, a message appears
on the driver information interface.
Pour the washer fluid carefully. Do not overflow the reservoir.1Refilling Window Washer Fluid
NOTICE
Do not use engine antifreeze or a vinegar/water
solution in the windshield washer reservoir.
Antifreeze can damage y our vehicle's paint. A
vinegar/water solution ca n damage the windshield
washer pump.
Use only commercially avai lable windshield washer
fluid.
Avoid prolonged use of hard water to prevent lime
scale buildup.Canadian models with Auto Idle Stop
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750
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 sy stem 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 wi th 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 and pollen filter sooner when using your
vehicle in areas with high concentrations of dust.
1Air Conditioning
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. 93
2 Specifications P. 814
Canadian models
: Caution
: Flammable Refrigerant
:
: Requires Registered
Technician to Service
Air Conditioning
System
1
Dust 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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753
uuCleaning uExterior Care
Continued
Maintenance
Exterior Care
Dust off the vehicle body after you drive. Regularly inspect your vehicle for scratches
on painted surfaces. A scratch on a painted surface can result in body rust. If you
find a scratch, promptly repair it.
Wash the vehicle regularly. Wash more frequently when driving in the following
conditions:
• If driving on roads with road salt.
• If driving in coastal areas.
• If tar, soot, bird droppings, insects, or tree sap are stuck to painted surfaces.
• Make sure to follow the instructions indicated on the automated car wash.
• Fold in the door mirrors.
• For models equipped with automatic inte rmittent wipers, turn the wipers off.
• Keep sufficient distance between the cleaning nozzle and the vehicle body.
• Take particular care around the windows. Standing too close may cause water to
enter the vehicle interior.
• Do not spray high pressure water directly into the engine compartment. Instead,
use low pressure water and a mild detergent.
• Do not spray water directly onto the ca mera or the area around it. Water may
enter the lens and cause th e camera to malfunction.
■Washing the Vehicle
■Using an Automated Car Wash
■Using High Pressure Cleaners
1Washing the Vehicle
Do not spray water into the air intake and hood
intake
* vents. It can cause a malfunction.
Lock the doors when washing the vehicle.
Do not spray water onto the fuel fill door directly. A
high-pressure spray ma y cause it to open.
Air Intake Vents
Models with Auto Idle Stop
Models without Auto Idle Stop
Air Intake Vents
Hood Intake Vent
* Not available on all models
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uuCleaning uExterior Care
754
Maintenance
A good coat of automotive body wax helps protect your vehicle's paint from the
elements. Wax will wear off over time and expose your vehicle's paint to the
elements, so reapply as necessary.
If you get gasoline, oil, engine coolant, or battery fluid on resin coated parts, they
may be stained or the coating may peel. Promptly wipe it away using a soft cloth and
clean water.
Wipe using a glass cleaner.
Aluminum is susceptible to deterioration caused by salt and other road
contaminants. When necessary, as early as possible use a sponge and mild detergent
to wipe away these contaminants. Do no t use a stiff brush or harsh chemicals
(including some commercial wheel cleaners). These can damage the protective finish
on aluminum alloy wheels, resulting in corrosion. Depending on the type of finish,
the wheels also may lose their luster or appear burnished. To avoid water stains,
wipe the wheels dry with a cloth while they are still wet.
■Applying Wax
■Maintaining the Bumpers and Other Resin Coated Parts
■Cleaning the Window
■Maintaining Aluminum Wheels
1 Washing the Vehicle
Do not spray water onto the capless unit when the
fuel fill door is open. It ca n cause damage to the fuel
system or engine.
If you need to lift the wiper arms away from the
windshield, first set the wiper arms to the
maintenance position. 2 Changing the Front Wiper Blade P. 733
Models without Auto Idle Stop
1Applying Wax
NOTICE
Chemical solvents and st rong cleaners can damage
the paint, metal, and plasti c on your vehicle. Wipe
away spills immediately.
1 Maintaining the Bumpers an d Other Resin Coated Parts
Ask a dealer about the corr ect coating material when
you want to repair the painted surface of the parts
made of resin.
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759
Handling the Unexpected
This chapter explains how to handle unexpected troubles.
Tools.................................................. 760
If a Tire Goes Flat Changing a Flat Tire ......................... 761
Temporarily Repairi ng a Flat Tire....... 768
Handling of the Jack ......................... 780
Engine Does Not Start Checking the Engine ........................ 781
If the Keyless Remote Battery is Weak .. 783
Emergency Engine Start ................... 784
Emergency Engine Stop ................... 785
If the Battery Is Dead ....................... 786
Shift Lever Does Not Move .............. 790Overheating
...................................... 791
Indicator, Coming On/Blinking If the Engine oil pressure low Warning Appears ......................................... 795
If the Charging System Indicator Comes On ............................................. 796
If the Malfunction Indicator Lamp Comes
On or Blinks ................................... 796
If the Brake System Indicator (Red) Comes On or Blinks ................................... 797
If the Brake System Indicator (Red) Comes On
or Blinks at the Same Time When the Brake
System Indicator (Amber) Comes On .. 799
If the Electric Power Steering (EPS) System
Indicator Comes On ....................... 798
If the Low Tire Pressure/TPMS Indicator Comes On or Blinks ....................... 800
Fuses .................................................. 801
Emergency Towing ........................... 808
If You Cannot Unlock the Fuel Fill Door.. 809
If You Cannot Open the Hatch ........ 810
Refueling ........................................... 811
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uuIf a Tire Goes Flat uChanging a Flat Tire
764
Handling the Unexpected
1. Place the jack under the jacking point
closest to the tire to be changed.
2. Turn the end bracket cl ockwise as shown in
the image until the top of the jack contacts
the jacking point.
u Make sure that the jacking point tab is
resting in the jack notch.
3. Raise the vehicle, using the jack handle bar
and the jack handle, until the tire is off the
ground.
■How to Set Up the Jack1How to Set Up the Jack
Do not use the jack with people or luggage in the
vehicle.
Use the jack provided in your vehicle.
Other jacks may not support the weight (“load”) or
may not fit the jacking point.
The following instructions must be followed to use
the jack safely:
•Do not use while the engine is running.
•Use only where the ground is firm and level.
•Use only at the jacking points.•Do not get in the vehicl e while using the jack.
•Do not put anything on top of or underneath the
jack.
3WARNING
The vehicle can easily roll off the jack,
seriously injuring anyone underneath.
Follow the directions for changing a tire
exactly, and never get under the vehicle
when it is supported only by the jack.
Jacking Points
Jacking Point
Jack
Handle
Bar Wheel Nut
Wrench as Jack Handle
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uuIf a Tire Goes Flat uTemporarily Repairing a Flat Tire
772
Handling the Unexpected
4. Plug in the compressor to the accessory
power socket.
u Be careful not to pinch the cord in a
door or window.
2 Accessory Power Socket P. 241
5.Start the engine.
2 Starting the Engine P. 493
uKeep the engine runn ing while injecting
sealant and air.
2 Carbon Monoxide Gas P. 92
6.Turn the selector knob to REPAIR.
1Injecting Sealant and Air
NOTICE
Do not operate the temporary tire repair kit
compressor for more than 15 minutes. The
compressor can overheat and become permanently
damaged.
Until the sealant injection is complete, the pressure
shown on the pressure gauge will appear higher than
actual. After the sealant injection is complete the
pressure will drop and then begin to rise again as the
tire is inflated with air. This is normal. To accurately
measure the air pressure usin g the gauge, turn the air
compressor off only after the sealant injection is
complete.
3WARNING
Running the engine with the vehicle in an
enclosed or even partly enclosed area can
cause a rapid buildup of toxic carbon
monoxide.
Breathing this colorless, odorless gas can
cause unconsciousness and even death.
Only run the engine to power the air
compressor with th e vehicle outdoors.
REPAIR Side
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