2021 HONDA CIVIC SEDAN ECU

416
Driving
Before Driving
Driving Preparation
Check the following items before you start driving.
• Make sure there are no obstructions on th e windows, door mirrors, exterior
lights, or other parts of the vehicle.
u Remove any frost, snow, or ice.
u Remove any snow on the roof, as this can slip down and obstruct your field of
vision while driving. If frozen solid , remove ice once it has softened.
u When removing ice from around the wheel s, be sure not to damage the wheel
or wheel components.
• Make sure the hood is securely closed.
u If the hood opens while driving, your front view will be blocked.
• Make sure the tires are in good condition.
u Check air pressures, check for damage and excessive wear.
2 Checking and Maintaining Tires P. 548
•Make sure there are no people or ob jects behind or around the vehicle.
u There are blind spots from the inside.
■Exterior Checks1Exterior Checks
NOTICE
When doors are frozen s hut, use warm water around
the door edges to melt any ice. Do not try to force
them open, as this can damage the rubber trim
around the doors. When done, wipe dry to avoid
further freezing.
Do not pour warm water into the key cylinder.
You will be unable to insert the key if the water
freezes in the hole.
Heat from the engine and exhaust can ignite
flammable material s left under the hood, causing a
fire. If you've parked y our vehicle for an extended
period, inspect and remove any debris that may have
collected, such as dried grass and leaves that have
fallen or have been carried in for use as a nest by a
small animal. Also check under the hood for leftover
flammable materials after you or someone else has
performed maintenance on your vehicle.
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Continued417
uuBefore Driving uDriving Preparation
Driving
• Store or secure all items on board properly.
u Carrying too much cargo, or improperly storing it, can affect your vehicle’s
handling, stability, sto pping distance, and tires, and make it unsafe.
2Maximum Load Limit P. 419
•Do not pile items higher than the seat height.
u They can block your view and may be thrown forward in the event of sudden
braking.
• Do not place anything in the front seat footwells. Make sure to secure the floor
mat.
u An object or unsecured floor mat can in terfere with your brake and accelerator
pedal operation while driving.
• If you have any animals on board, do not let them move around in the vehicle.
u They may interfere with driv ing and a crash could occur.
• Securely close and lock all doors and the trunk.
2 Locking/Unlocking the Doors from the Inside P. 138
•Adjust your seating position properly.
u Adjust the front h ead restraint, too.
2Adjusting the Seats P. 172
2 Adjusting the Front Head Restraints P. 177
•Adjust the mirrors and steering wheel properly.
u Adjust them while sitting in the proper driving position.
2 Adjusting the Mirrors P. 170
2 Adjusting the Steering Wheel P. 169
■Interior Checks1Interior Checks
The headlight aim is set by the factory, and does not
need to be adjusted. Howeve r, if you regularly carry
heavy items in the trunk, have the aiming readjusted
at a dealer or by a qualified technician.
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uuWhen Driving uStarting the Engine
428
Driving
■To stop the engine1Remote Engine Start with Vehicle Feedback*
•You have already used the remote twice to start
the engine.
•Another registered smart entry remote is in the
vehicle.
•There is an antenna failure.
•The door is unlocked with the built-in key.
•The engine oil pressure is low.•The engine coolant temper ature is extremely high.
•The security system alarm is not set.
While the engine is running, the vehicle will
automatically preconditi on inside the vehicle.
When it is warm outside:
•The air conditioning is acti vated in recirculation
mode.
When it is cold outside:
•The defroster is activated at a moderately warm
temperature.
•The rear defogger, door mirror heaters*, and seat
heaters* are activated.
2 Front Seat Heaters* P. 191
Press and hold the
button for one
second.
Go within the range,
and try again.
The exterior lights flash once if the engine stops successfully.
The exterior lights will not flash when the remote is out of
the smart entry system range.
The engine will not stop.
* Not available on all models
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494
Driving
Braking
Brake System
Use the parking brake to keep the vehicle stationary when parked. When the
parking brake is applied, you can manually or automatically release it.
■To apply
The electric parking brake can be applied any
time the vehicle has battery, no matter which
position the ignition switch
*1 is in.
Pull the electric parking brake switch up gently
and securely. u The indicator in th e switch comes on.
u The parking brake and brake system
indicator (red) comes on.
■To release
The ignition switch must be ON
(w*1 in order
to release the electric parking brake.
1. Depress the brake pedal.
2. Press the electric parking brake switch.
u The indicator in th e switch goes off.
u The parking brake and brake system
indicator (red) goes off.
Manually releasing the parking brake using
the switch helps your ve hicle start slowly and
smoothly when facing down hill on steep hills.
*1: Models with the smart entry system have an ENGINE START/STOP button instead of an
ignition switch.
■Parking Brake1 Parking Brake
You may hear the electric parking brake system
motor operating from the re ar wheel area when you
apply or release the parki ng brake. This is normal.
The brake pedal may slightly move due to the electric
parking brake system opera tion when you apply or
release the parking br ake. This is normal.
You cannot apply or release the parking brake if the
12-volt battery goes dead. 2 If the Battery Is Dead P. 583
If you pull up and hold the electric parking brake
switch while driving, the brakes on all four wheels
are applied by the VSA
® system until the vehicle
comes to a stop. The electric parking brake then
applies, and the switch should be released.
In the following situations, the parking brake
automatically operates.
•When your vehicle is stopped with the automatic
brake hold system activated for more than 10
minutes.
•When the driver’s seat belt is unfastened while
your vehicle is stopped and the brake hold system
is applied.
•When the engine is turned off while the brake hold
system is applied.
•When there is a problem with the brake hold
system while brake hold is applied.
•When your vehicle is stopped for more than 10
minutes while ACC with Low Speed Follow is
activated.
Electric Parking
Brake Switch
Electric Parking
Brake Switch
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523
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.
2.0 L engine models
Hood Release Handle
Pull
Lever
Support Rod
Grip
Clamp
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527
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
Engine Oil
Fill Cap
2.0 L engine models
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uuMaintenance Under the Hood uChanging the Engine Oil and Oil Filter
530
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 oil 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)
4.4 US qt (4.2 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 Filter1.5 L engine models
2.0 L engine models
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uuCleaning uInterior Care
564
Maintenance
The driver’s floor mat hooks over floor
anchors, which keep the mat from sliding
forward. To remove a mat for cleaning, turn
the anchor knobs to the unlock position.
When reinstalling the mat after cleaning, turn
the knobs to the lock position.
Do not put additional floor mats on top of
the anchored mat.
To properly clean leather:
1. Use a vacuum or soft dry cloth first to remove any dirt or dust.
2. Clean the leather with a soft cloth dampen ed with a solution comprised of 90%
water and 10% neutral soap.
3. Wipe away any soap residu e with a clean damp cloth.
4. Wipe away residual water and allow leather to air dry in the shade.
■Floor Mats1Floor Mats
If you use any floor mats that were not originally
provided with your vehicle, make sure they are
designed for your specific ve hicle, fit correctly, and
are securely anchored by the floor anchors.
Position the rear seat floor mats properly. If not
properly positioned, the floor mats can interfere with
the front seat functions.
Lock Unlock
■Maintaining Genuine Leather*1 Maintaining Genuine Leather*
It is important to clean or wipe away dirt or dust as
soon as possible. Spills can soak into leather resulting
in stains. Dirt or dust ca n cause abrasions in the
leather. In addition, pl ease note that some dark
colored clothing can rub onto the leather seats
resulting in discol oration or stains.
* Not available on all models
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