check engine HONDA CIVIC HATCHBACK 2021 (in English) Service Manual

576
uuMaintenance MinderTMuTo Use Maintenance MinderTM
Maintenance
■Maintenance Service Items1Maintenance Service Items
•Adjust the valves during services A, B, 1, 2, or 3 if
they are noisy.
Maintenance Minder Message
System Message
Indicator
Sub Items
Main Item
U.S. models
*1: If a Maintenance Minder message does not appear more than 12 months after the display is reset,
change the engine oil every year.
# : See information on maintenance and emissions warranty.
*2: If you drive in dusty conditions, replace the air cleaner element every 15,000 miles.
CODEMaintenance Main Items
A
●Replace engine oil*1
B●Replace engine oil*1 and oil filter●Inspect front and rear brakes●Check expiration date for Temporary Tire Repair kit
bottle (If equipped)
●Inspect these items:
• Tie rod ends, steering gearbox, and boots
• Suspension components
• Driveshaft boots
• Brake hoses and lines (including ABS/VSA ®)
• All fluid levels and condition of fluids
• Exhaust system
#
•Fuel lines and connections#
*3: If you drive primarily in urban areas that have high concentrations of soot in the air from industry and
from diesel-powered vehicles, replace the dust and pollen filter every 15,000 miles.
*4: Driving in mountainous areas at very low vehicle speeds results in higher transmission temperatures. This requires transmission fluid changes
more frequently than recommended by the Maintenance Minder. If you regularly drive your vehicle
under these conditions, have the transmission fluid changed every 25,000 miles.
*5: If a Maintenance Minder message does not appear more than 36 months after the display for item 7 is reset, change the brake fluid every 3 years.
CODEMaintenance Sub Items
1
●Rotate tires
2●Replace air cleaner element*2
●Replace dust and pollen filter*3
●Inspect drive belt
3
●Replace transmission fluid*4
4●Replace spark plugs●Inspect valve clearance
5
●Replace engine coolant
7●Replace brake fluid*5
Continuously variable transmission models
21 CIVIC 5D HUM-31TGG6400_01.book 576 ページ ２０２０年８月２８日　金曜日　午後１時 ４８分

577
uuMaintenance MinderTMuTo Use Maintenance MinderTM
Continued
Maintenance
1Maintenance Service Items
•Adjust the valves during services A, 0, 9, 1, 2, or 3
if they are noisy.
Canadian models
*1: If a Maintenance Minder message does not appear more than 12 months after the display is reset,
change the engine oil every year.
*2: If you drive in dusty conditions, replace the air cleaner element every 24,000 km.
*3: If you drive primarily in urban areas that have high concentrations of soot in the air from industry and from diesel-powered vehicles, replace the dust and pollen filter every 24,000 km.
*4: Driving in mountainous areas at very low vehicle speeds results in higher transmission temperatures. This requires transmission fluid changes
more frequently than recommended by the Maintenance Minder. If you regularly drive your vehicle
under these conditions, have the transmission fluid changed every 40,000 km.
*5: If a Maintenance Minder message does not appear more than 36 months after the display for item 7 is reset, change the brake fluid every 3 years.
# : See information on maintenance and emissions warranty.
CODEMaintenance Main Items
A
●Replace engine oil*1
0●Replace engine oil*1 and oil filter
Continuously variable transmission models
CODEMaintenance Sub Items
1
●Rotate tires
2●Replace air cleaner element*2
●Replace dust and pollen filter*3
●Inspect drive belt
3
●Replace transmission fluid*4
4●Replace spark plugs●Inspect valve clearance
5
●Replace engine coolant
7●Replace brake fluid*5
9●Service front and rear brakes●Check expiration date for Temporary Tire Repair kit
bottle (If equipped)
●Inspect these items: • Tie rod ends, steering gearbox, and boots
• Suspension components
• Driveshaft boots
• Brake hoses and lines (including ABS/VSA ®)
• All fluid levels and condition of fluids
• Exhaust system
#
•Fuel lines and connections#
21 CIVIC 5D HUM-31TGG6400_01.book 577 ページ ２０２０年８月２８日　金曜日　午後１時 ４８分

581
uuMaintenance Under the Hood uOpening the Hood
Maintenance
Opening the Hood
1. Park the vehicle on a level surface, and set
the parking brake.
2. Pull the hood release handle under the
driver’s side lower corner of the dashboard.
u The hood will pop up slightly.
3. Pull up the hood latch lever (located under
the front edge of the hood to the center)
and raise the hood. Once you have raised
the hood slightly, you can release the lever.
4. Remove the support rod from the clamp
using the grip. Mount the support rod in
the hood.
When closing, remove the support rod, and
stow it in the clamp, then gently lower the
hood. Remove your hand at a height of
approximately 12 inches (30 cm) and let the
hood close.1 Opening the Hood
NOTICE
Do not open the hood when the wiper arms are
raised. The hood will strike the wipers, resulting in
possible damage to the hood and/or the wipers.
NOTICE
Do not press the engine cover* forcibly. This may
damage the engine cover and component parts.
When closing the hood, check that the hood is
securely latched.
If the hood latch lever moves stiffly, or if you can
open the hood without lifti ng the lever, the latch
mechanism should be cl eaned and lubricated.
3WARNING
The hood support rod can become very hot
due to heat from the engine.
To ensure against possible burns, do not
handle the metal section of the rod: Use
the foam grip instead.
Hood Release Handle
Pull
Lever
Support Rod
Grip
Clamp
* Not available on all models
21 CIVIC 5D HUM-31TGG6400_01.book 581 ページ ２０２０年８月２８日　金曜日　午後１時 ４８分

583
uuMaintenance Under the Hood uOil Check
Continued
Maintenance
Oil Check
We recommend that you check the engi ne oil level every time you refuel.
Park the vehicle on level ground.
Wait approximately three minutes after turn ing the engine off before you check the
oil. 1.Remove the dipstick (orange or black).
2. Wipe the dipstick with a clean cloth or
paper towel.
3. Insert the dipstick back all the way into its
hole.1Oil Check
If the oil level is near or below the lower mark, slowly
add oil, being carefu l not to overfill.
1.5 L engine models
2.0 L engine models
21 CIVIC 5D HUM-31TGG6400_01.book 583 ページ ２０２０年８月２８日　金曜日　午後１時 ４８分

uuMaintenance Under the Hood uOil Check
584
Maintenance
4. Remove the dipstick again, and check the
level. It should be between the upper and
lower marks. Add oil if necessary.1Oil Check
Under certain driving conditions, it is normal for the
engine oil level to rise above the upper mark. If you
have a concern, consult a dealer for details.
Upper Mark
Lower Mark
1.5 L engine models
Upper Mark
Lower Mark
2.0 L engine models
21 CIVIC 5D HUM-31TGG6400_01.book 584 ページ ２０２０年８月２８日　金曜日　午後１時 ４８分

585
uuMaintenance Under the Hood uAdding Engine Oil
Maintenance
Adding Engine Oil
1. Unscrew and remove the engine oil fill cap.
2. Add oil slowly.
3. Reinstall the engine oil fill cap, and tighten
it securely.
4. Wait for three minutes and recheck the
engine oil dipstick.1Adding Engine Oil
NOTICE
Do not fill the engine oil above the upper mark.
Overfilling the engine oil may result in leaks and
engine damage.
If any oil spills, wipe it away immediately. Spilled oil
may damage the engine compartment components.
Engine Oil
Fill Cap
1.5 L engine models
2.0 L engine models
Engine Oil
Fill Cap
21 CIVIC 5D HUM-31TGG6400_01.book 585 ページ ２０２０年８月２８日　金曜日　午後１時 ４８分

uuMaintenance Under the Hood uChanging the Engine Oil and Oil Filter
588
Maintenance
5. Remove the oil filter and dispose of the
remaining oil.
6. Check that the filter ga sket is not stuck to
the engine contact surface.
u If it is stuck, you must detach it.
7. Wipe away dirt and dust adhering to the
contact surface of the engine block, and
install a new oil filter.
u Apply a light coat of new engine oil to
the filter gasket.
8. Put a new washer on the drain bolt, then
reinstall the drain bolt.
u Tightening torque:
30 lbf∙ft (40 N∙m, 4.0 kgf∙m)
9. Pour the recommended engine oil into the
engine.
u Engine oil change capacity (including
filter):
3.7 US qt (3.5 L)
5.7 US qt (5.4 L)
10. Reinstall the engine oi l fill cap securely and
start the engine.
11. Run the engine for a few minutes, and
then check that ther e is no leak from the
drain bolt or oil filter.
12. Stop the engine, wait for three minutes,
and then check the oil level on the dipstick.
u If necessary, add more engine oil.1Changing the Engine Oil and Oil Filter
You will need a special wrench to replace the oil
filter. You can buy this wrench from a dealer.
When installing the new oil filter, follow the
instructions supplied with the oil filter.
Reinstall the engine oil fill cap. Start the engine. The
low oil pressure indicator should go off within five
seconds. If it does not, turn off the engine, and check
your work.
Oil Filter
1.5 L engine models
2.0 L engine models
Oil Filter
1.5 L engine models
2.0 L engine models
21 CIVIC 5D HUM-31TGG6400_01.book 588 ページ ２０２０年８月２８日　金曜日　午後１時 ４８分

589
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
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
1.5 L engine models
2.0 L engine models
Reserve Tank
21 CIVIC 5D HUM-31TGG6400_01.book 589 ページ ２０２０年８月２８日　金曜日　午後１時 ４８分

592
uuMaintenance Under the Hood uBrake/Clutch* Fluid
Maintenance
Brake/Clutch* Fluid
Use the same fluid for both the brakes and clutch*.
The fluid level should be between the MIN
and MAX marks on the side of the reserve
tank.
The brake fluid reserve tank is also used for
your vehicle’s clutch fluid. As long as you keep
the brake fluid level as in structed above, there
is no need for checking the clutch fluid level.
Specified fluid: Honda Heavy Duty Brake Fluid DOT 3
■Checking the Brake Fluid
1Brake/Clutch* Fluid
NOTICE
Brake fluid marked DOT 5 is not compatible with your
vehicle’s braking system and can cause extensive
damage.
If the specified br ake fluid is not av ailable, you should
use only DOT 3 or DOT 4 fluid from a sealed
container as a temporary replacement.
Using any non-Honda brake fluid can cause corrosion
and decrease the longevity of the system. Have the
brake system flushed and re filled with Honda Heavy
Duty Brake Fluid DOT 3 as soon as possible.
If the brake fluid level is at or below the MIN mark,
have a dealer inspect the vehicle for leaks or worn
brake pads as soon as possible.
1.5 L engine models
Brake Reserve Tank
MIN
MAX
Manual transmission models
2.0 L engine models
MIN
MAX
Brake Reserve Tank
* Not available on all models
21 CIVIC 5D HUM-31TGG6400_01.book 592 ページ ２０２０年８月２８日　金曜日　午後１時 ４８分

593
uuMaintenance Under the Hood uRefilling Window Washer Fluid
Maintenance
Refilling Window Washer Fluid
Open the cap and 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 build up.
Cap
Except Canadian models with 1.5 L
engine
2.0 L engine models
Canadian 1.5 L engine models
Cap
Cap
Canadian models
21 CIVIC 5D HUM-31TGG6400_01.book 593 ページ ２０２０年８月２８日　金曜日　午後１時 ４８分