ECO mode HONDA ACCORD SEDAN 2021 Owner's Manual (in English)

554
uuMaintenance Under the Hood uOil Check
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).
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

uuMaintenance Under the Hood uChanging the Engine Oil and Oil Filter
560
Maintenance
6. Remove the oil filter and dispose of the
remaining oil.
7. Check that the filter ga sket is not stuck to
the engine contact surface.
u If it is stuck, you must detach it.
8. 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.
9. 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)
10. Pour the recommended engine oil into the
engine.
u Engine oil change capacity (including
filter):
3.7 US qt (3.5 L)
5.0 US qt (4.8 L)
11. Reinstall the engine oi l fill cap securely and
start the engine.
12. Run the engine for a few minutes, and
then check that there is no leak from the
drain bolt or oil filter.
13. 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. If the
low oil pressure warning appears, turn off the
engine, and check your work.1.5 L engine models
2.0 L engine models
Oil Filter
Oil Filter1.5 L engine models
2.0 L engine models

574
Maintenance
Checking and Maintaining Wiper Blades
Checking Wiper Blades
If the wiper blade rubber has deteriorated, it will leave streaks, become noisy, and
the hard surfaces of the blade may scratch the window glass.
Changing the Wiper Blade Rubber
1. Set the power mode to VEHICLE OFF.
2. While holding the wiper switch in the
MIST position, set the power mode to ON,
then to VEHICLE OFF.
u Both wiper arms are set to the
maintenance position as shown in the
image.
3. Lift the driver side wiper arm first, then the
passenger side.
1Changing the Wiper Blade Rubber
NOTICE
Avoid dropping the wiper arm onto the windshield, it
may damage the wiper arm and/or the windshield.

582
uuChecking and Maintaining Tires uWear Indicators
Maintenance
Wear Indicators
The groove where the wear indicator is
located is about 1/16 inch (about 1.6 mm)
shallower than elsewhere on the tire. If the
tread has worn so that the indicator is
exposed, replace the tire. Worn out tires
have poor traction on wet roads.
Tire Service Life
The life of your tires is dependent on many factors, including driving habits, road
conditions, vehicle loading, inflation pre ssure, maintenance history, speed, and
environmental conditions (even when the tires are not in use).
In addition to regular inspections and inflation pressure maintenance, it is
recommended that you have annual inspections performed once the tires reach five
years old. All tires, including the spare, should be removed from service after 10
years from the date of manufacture, regard less of their condition or state of wear.
1Checking Tires
High speed driving
We recommend that you do not drive faster than the
posted speed limits and condi tions allow. If you drive
at sustained high speeds (over 99 mph or 160 km/h),
adjust the cold tire pressures as shown below to
avoid excessive heat build up and sudden tire failure.
Tire Size225/50R17 94V
Pressure Front: 35 psi (240 kPa, 2.4 kgf/cm2)
Rear: 33 psi (230 kPa, 2.3 kgf/cm2)
Tire Size235/40R19 96V
Pressure Front: 36 psi (250 kPa, 2.5 kgf/cm2)
Rear: 36 psi (250 kPa, 2.5 kgf/cm2)
Models with 225/50R17 tires
Models with 235/40R19 tires
Example of a Wear
Indicator mark

585
uuChecking and Maintaining Tires uWinter Tires
Maintenance
Winter Tires
If driving on snowy or frozen roads, mount all season marked M+S tires, snow tires, or tire
chains; reduce speed; and maintain sufficient distance between vehicles when driving.
Be particularly careful wh en operating the steering wheel or brakes to prevent
skidding.
Use tire chains, snow tires, or all season tires when necessary or according to the law.
When mounting, refer to the following points.
For winter tires:
• Select the size and load ranges that are the same as the original tires.
• Mount the tires to all four wheels.
For tire chains:
• Install them on the front tires only.
• Because your vehicle has limited tire clea rance, we strongly recommend using the
chains listed below:
• Follow the chain manufactur er’s instruction when installing. Mount them as
tightly as you can.
• Check that the chains do not touc h the brake lines or suspension.
• Drive slowly.
Cable-type: SCC Radial Chain SC1036
Not recommended to us e any type of chains
1Winter Tires
NOTICE
Traction devices that are the wrong size or improperly
installed can damage your vehicle’s brake lines,
suspension, body, and wheels. Stop driving if they are
hitting any part of the vehicle.
When tire chains are mounted, follow the chain
manufacturer’s instructi ons regarding vehicle
operational limits.
If your vehicle is equipp ed with summer tires, be
aware that these tires are not designed for winter
driving conditions. For more information, contact a
dealer.
3WARNING
Using the wrong chains, or not properly
installing chains, can damage the brake
lines and cause a crash in which you can be
seriously injured or killed.
Follow all instruction s in this owner’s
manual regarding the selection and use of
tire chains.
Models with 225/50R17 tires
Models with 235/40R19 tires

587
uuBattery uCharging the Battery
Maintenance
Charging the Battery
Disconnect both battery cables to prevent damaging your vehicle’s electrical system.
Always disconnect the negative (–) cable first, and reconnect it last.1Charging the Battery
When replacing the battery, the replacement must be
of the same specifications.
Consult a dealer for more information.
The Vehicle Stability Assist
TM (VSA ®) system, Vehicle
Stability AssistTM (VSA ®) OFF, adaptive cruise control
(ACC) with Low Speed Follow, safety support and
low tire pressure/TPMS indicators may come on in
amber along with a message in the driver information
interface when you set the power mode to ON after
reconnecting the battery.
Drive a short distance at more than 12 mph (20 km/h).
Each indicator should go off. If any do not, have your
vehicle checked by a dealer.
The battery installed in this vehicle is specifically
designed for a model wi th Auto Idle Stop.
Using a battery other than this specified type may
shorten the battery life, a nd prevent Auto Idle Stop
from activating. If you need to replace the battery,
make sure to select the specified type and size. Ask a
dealer for more details.
Models with Auto Idle Stop

589
Maintenance
Climate Control System Maintenance
Air Conditioning
To ensure proper and safe operation, the 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 conditio ning 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 repl ace the dust and pollen filter sooner when using your
vehicle in areas with high concentrations of dust.
1 Air 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. 79
2 Specifications P. 634, 636
Canadian models
: Caution
: Flammable Refrigerant
: Requires Registered
Technician to Service
: Air Conditioning
System
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.

606
uuEngine Does Not Start uIf the Remote Battery is Weak
Handling the Unexpected
If the Remote Battery is Weak
If the beeper sounds, the To Start, Hold Remote Near Start Button message
appears on the driver information interface, and the ENGINE START/STOP button
flashes, and the engine won’t star t, start the engine as follows:
1.Touch the center of the ENGINE START/
STOP button with the H logo on the
remote while the ENGINE START/STOP
button is flashing. The buttons on the
remote should be facing you.
u The ENGINE START/STOP button
flashes for about 30 seconds.
2. Depress the brake pedal and press the
ENGINE START/STOP button within 10
seconds after the beeper sounds and the
ENGINE START/STOP button changes
from flashing to on.
u If you don’t depress the pedal, the mode
will change to ACCESSORY.

607
uuEngine Does Not Start uEmergency Engine Stop
Handling the Unexpected
Emergency Engine Stop
The ENGINE START/STOP button may be used to stop the engine due to an
emergency situation even while driving. If you must stop the engine, do either of the
following operations:
• Press and hold the ENGINE START/STOP button for about two seconds.
• Firmly press the ENGINE START/STOP button three times.
The steering wheel will not lock. However, because turning off the engine disables
the power assist the engine provides to the steering and braking systems, it will
require significantly more physical effort an d time to steer and slow the vehicle. Use
both feet on the brake pedal to slow down the vehicle and stop immediately in a
safe place.
The transmission automa tically changes to
(P after the vehicle comes to a complete
stop. Then, the power mode changes to VEHICLE OFF.
The power mode is in ACCESSORY when the engine is stopped.
To change the mode to VEHICLE OFF, put the transmission into
(P after the vehicle
comes to a complete stop.
Then press the ENGINE START/STOP button twice without depressing the brake
pedal.
1 Emergency Engine Stop
Do not press the ENGINE START/STOP button while
driving unless it is absolute ly necessary for the engine
to be turned off.
If you press the ENGINE START/STOP button while
driving, the beeper sounds.
Automatic transmission models
Continuously variable transmission models
Continuously variable transmission models for Canadian models

608
Handling the Unexpected
If the Battery Is Dead
Jump Starting Procedure
Turn off the power to electric devices, such as audio and lights. Turn off the engine,
then open the hood. 1.Open the cover on the positive + terminal.
2. Connect the first jump er cable to your
vehicle’s battery + terminal.
3. Connect the other end of the first jumper
cable to the booster battery + terminal.
u Use a 12-volt booster battery only.
u When using an automotive battery
charger to boost your 12-volt battery,
select a lower charging voltage than
15-volt. Check the charger manual for
the proper setting.
4. Connect the second jumper cable to the
booster battery - terminal.1If the Battery Is Dead
Securely attach the jumper cables clips so that they
do not come off when the e ngine vibrates. Also be
careful not to tangle the ju mper cables or allow the
cable ends to touch each other while attaching or
detaching the jumper cables.
3WARNING
A battery can explode if you do not follow
the correct procedure, seriously injuring
anyone nearby.
Keep all sparks, open flames, and smoking
materials away from the battery.
Booster Battery
1.5 L engine models
2.0 L engine models
Booster Battery