oil HONDA CIVIC HATCHBACK 2021 (in English) User Guide

566
Driving
Fuel Economy and CO2 Emissions
Improving Fuel Economy and Reducing CO2
Emissions
Achieving fuel economy and reducing CO2 emissions is dependent on several
factors, including driving conditions, load weight, idling time, driving habits, and
vehicle condition. Depending on these and other factors, you may not achieve the
rated fuel economy of this vehicle.
You can optimize your fuel economy with proper maintenance of your vehicle.
Always maintain your vehicle in accordance with the messages displayed on the
driver information interface.
• Use the recommended viscosity engine oil.
2 Recommended Engine Oil P. 582
•Maintain the specified tire pressure.
• Do not load the vehicl e with excess cargo.
• Keep your vehicle clean. A buildup of snow or mud on your vehicle's underside
adds weight and increases wind resistance.
■Maintenance and Fuel Economy
1Improving Fuel Economy and Reducing CO2 Emissions
Direct calculation is the recommended method to
determine actual fuel consumed while driving.
In Canada, posted fuel economy numbers are
established following a simulated test.
For more information on how this test is performed,
please visit https://www.nrcan.gc.ca and search for
“fuel consumption testing” in the search field at the
top of the page.
Miles driven Gallons of
fuel Miles per
Gallon
100 Liters of
fuel Kilometers
driven L per 100 km
21 CIVIC 5D HUM-31TGG6400_01.book 566 ページ ２０２０年８月２８日　金曜日　午後１時
４８分

567
Driving
Turbo Engine Vehicle
Handling Precautions
The turbocharger is a high-precision device to obtain greater horsepower by
delivering a large volume of compressed air in to the engine using a turbine driven by
the engine’s exhaust gas pressure.
• When the engine is cold just after sta rting, avoid revving the engine or sudden
acceleration.
• Always replace the engine oil and engine oil filter according to the Maintenance
Minder
TM. The turbine rotates at very high speeds over 100,000 rpm and its
temperature reaches over 1,2 92°F (700°C). It is lubricated and cooled by engine
oil. If you fail to replace the engine oil and filter at the scheduled distance or
interval, deteriorated engine oil may caus e failure such as sticking and abnormal
noise of the turbine bearing.
1 Turbo Engine Vehicle
The scheduled maintenance intervals for replacing
the filter is indicated on the driver information
interface. Follow the information of when to replace
them. 2 Maintenance Minder
TM P. 573
The temperature gauge pointer is at the mark
when you restart the engi ne after driving under high
load conditions such as at high speed or in hilly
terrain. This is normal. The gauge goes down after
you idle or drive the vehi cle for about one minute.
H
21 CIVIC 5D HUM-31TGG6400_01.book 567 ページ ２０２０年８月２８日　金曜日　午後１時 ４８分

569
Maintenance
This chapter discusses basic maintenance.
Before Performing MaintenanceInspection and Maintenance ............ 570
Safety When Performing Maintenance .... 571Parts and Fluids Used in Maintenance Service ........................................... 572
Maintenance Minder
TM..................... 573
Maintenance Under the Hood
Maintenance Items Un der the Hood .... 579Opening the Hood ........................... 581
Recommended Engine Oil ................ 582
Oil Check ......................................... 583
Adding Engine Oil ............................ 585
Changing the Engine Oil and Oil Filter..... 586
Engine Coolant ................................ 589
Transmission Fluid ............................ 591
Brake/Clutch
* Fluid .......................... 592
Refilling Window Washer Fluid......... 593
Replacing Light Bulbs ....................... 594
Checking and Maintaining Wiper
Blades .......................................... 604
Checking and Maintaining Tires
Checking Tires ................................. 609
Tire and Loading Information Label ..... 610Tire Labeling .................................... 610DOT Tire Quality Grading (U.S. Vehicles) ...... 612Wear Indicators................................ 614 Tire Service Life ................................ 614
Tire and Wheel Replacement ........... 615
Tire Rotation .................................... 616
Winter Tires ..................................... 617
Cold Weather Driving ...................... 619
Battery ............................................... 620
Remote Transmitter Care Replacing the Button Battery ........... 622
Climate Control System Maintenance .. 624Cleaning
Interior Care .................................... 625
Exterior Care.................................... 628
Accessories and Modifications ........ 631
* Not available on all models
21 CIVIC 5D HUM-31TGG6400_01.book 569 ページ ２０２０年８月２８日　金曜日　午後１時 ４８分

570
Maintenance
Before Performing Maintenance
Inspection and Maintenance
For your safety, perform all listed inspections and maintenance to keep your vehicle
in good condition. If you become aware of an y abnormality (noise, smell, insufficient
brake fluid, oil residue on the ground, etc.), have your vehicle inspected by a dealer.
(Note, however, that service at a dealer is not mandatory to keep your warranties in
effect.)
■Daily inspections
Perform inspections before long distance trips, when washing the vehicle, or when
refueling.
■Periodic inspections
• Check the brake/clutch* fluid level monthly.
2 Brake/Clutch* Fluid P. 592
•Check the tire pressure monthly. Examin e the tread for wear and foreign objects.
2Checking and Maintaining Tires P. 609
•Check the operation of the exterior lights monthly.
2 Replacing Light Bulbs P. 594
•Check the condition of the wiper bl ades at least every six months.
2Checking and Maintaining Wiper Blades P. 604
■Types of Inspection and Maintenance
1Inspection and Maintenance
Maintenance, replacement, or repair of
emissions control devices and systems may be
done by any automotive repair establishment or
individuals using parts that are “certified” to
EPA standards.
According to state and fede ral regulations, failure to
perform maintenance on the maintenance main
items marked with # will not void your emissions
warranties. However, all ma intenance services should
be performed in accordan ce with the intervals
indicated by the driver information interface.
2 Maintenance Service Items P. 576
If you want to perform complex maintenance tasks
that require more skills a nd tools, you can purchase a
subscription to the Service Express website at
www.techinfo.honda.com .
2 Authorized Manuals P. 695
If you want to perform ma intenance yourself, make
sure that you have the necessary tools and skills first.
After performing maintenanc e, update the records in
the separate maintenance booklet.
U.S. models
* Not available on all models
21 CIVIC 5D HUM-31TGG6400_01.book 570 ページ ２０２０年８月２８日　金曜日　午後１時 ４８分

573
Maintenance
Maintenance MinderTM
Select the Maintenance Minder to see maintenance items that are due soon and to
see the percentage of life remaining in the engine oil.
When the engine oil life is less than 15%, a Maintenance Minder message will
appear every time you turn the ignition switch to ON
(w*1, reminding you to bring
your vehicle to a dealer for service.
21 CIVIC 5D HUM-31TGG6400_01.book 573 ページ ２０２０年８月２８日　金曜日　午後１時 ４８分

574
uuMaintenance MinderTMuTo Use Maintenance MinderTM
Maintenance
To Use Maintenance MinderTM
Certain maintenance items due soon, along with the estimated remaining oil life,
appear on the driver information interface.
You can view them on the Maintenance Minder screen at any time.
1. Turn the ignition switch to ON
(w*1.
2. Press the (Display/Information) button several times until is displayed.
3. Press ENTER button to go to the Maintenance Minder screen. The engine oil
life appears on the driver information in terface along with maintenance items due
soon.
*1: Models with the smart entry system have an ENGINE START/STOP button instead of an
ignition switch.
■Displaying the Maintenance Minder Information1 Displaying the Maintena nce Minder Information
Based on the engine opera ting conditions and oil
age, the remaining engine oi l life is calculated and
displayed as a percentage.
There is a list of maintena nce main and sub items you
can view on the driver information interface.
2 Maintenance Service Items P. 576
Displayed Engine Oil
Life (%)Calculated Engine Oil Life (%)
100 100 to 91
9090 to 81
80 80 to 71
7070 to 61
60 60 to 51
5050 to 41
40 40 to 31
3030 to 21
20 20 to 16
1515 to 11
10 10 to 6
55 to 1
0 0
Sub Item
Engine Oil Life
Main Item
ENTER Button
(Display/Information) Button
21 CIVIC 5D HUM-31TGG6400_01.book 574 ページ ２０２０年８月２８日　金曜日　午後１時 ４８分

575
uuMaintenance MinderTMuTo Use Maintenance MinderTM
Continued
Maintenance
The system message indicator ( ) comes on along with the Maintenance Minder message.
■Maintenance Minder Messages on the Driver Information
Interface
Maintenance MessageOil Life DisplayExplanationInformation
Normal
—
When you select the Maintenance
Minder screen, it displays codes for
maintenance items due at the next
engine oil change, along with the
percentage of engine oil life remaining.
Maintenance Due SoonThe engine oil life indicator starts to
appear along with other due-soon
maintenance item codes when the
remaining oil life drops to 15 percent.The engine oil is approaching the
end of its service life.
Maintenance Due NowThe remaining engine oil life is 5 to 1
percent. Press the button to
switch to another display.The engine oil has almost reached
the end of its service life, and the
maintenance items should be
inspected and serviced as soon as
possible.
Maintenance Past DueThe engine oil has passed its service life,
and a negative distance appears after
driving over 10 miles (U.S. models) or
10 km (Canadian models). The negative
distance on the display blinks.The engine oil life has passed.
The maintenance items must be
inspected and serviced immediately.
21 CIVIC 5D HUM-31TGG6400_01.book 575 ページ ２０２０年８月２８日　金曜日　午後１時 ４８分

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

579Continued
Maintenance
Maintenance Under the Hood
Maintenance Items Under the Hood
1.5 L engine models
Brake/Clutch* Fluid
(Black Cap)
Reserve Tank Washer Fluid
(Blue Cap)
Engine Oil Dipstick
(Orange) Engine Oil Fill Cap Battery
Reserve Tank Cap
U.S. models
Washer Fluid
(Blue Cap)
Canadian models
* Not available on all models
21 CIVIC 5D HUM-31TGG6400_01.book 579 ページ ２０２０年８月２８日　金曜日　午後１時 ４８分