2021 HONDA CIVIC SEDAN trunk

Contents
Child Safety P. 62Exhaust Gas Hazard P. 75Safety Labels P. 76
Opening and Closing the Trunk P. 142 Security System P. 145 Opening and Closing the Windows P. 148
Adjusting the Mirrors P. 170 Adjusting the Seats P. 172
Climate Control System P. 193
Audio Error Messages P. 297 General Information on the Audio System P. 300
Bluetooth ® HandsFreeLink ® P. 355, 382
When Driving P. 422 Honda Sensing ® P. 450 Braking P. 494 Parki ng Your Vehicle P. 501
Fuel Economy and CO
2 Emissions P. 508 Turbo Engine Vehicle* P. 509
Maintenance Under the Hood P. 521 Replacing Light Bulbs P. 536
Checking and Maintaining Tires P. 548 Battery P. 558 Remote Transmitter Care P. 560
Cleaning P. 563 Accessories and Modifications P. 568
Engine Does Not Start P. 580 If the Battery Is Dead P. 583
Indicator, Coming On/Blinking P. 589 Fuses P. 595Emergency Towing P. 599
If You Cannot Open the Trunk P. 601 Refueling P. 602
Devices that Emit Radio Waves P. 609 Reporting Safety Defects P. 610
Authorized Manuals P. 616 Customer Service Information P. 617
Quick Reference GuideP. 6
Safe DrivingP. 33
Instrument PanelP. 77
ControlsP. 125
FeaturesP. 201
DrivingP. 415
MaintenanceP. 511
Handling the UnexpectedP. 571
InformationP. 603
IndexP. 619
21 CIVIC 4D HCM_HMIN_J (KA KL KC)-31TBA6500.book 5 ページ ２０２０年８月２５日　火曜日　午後２時６分

Visual Index
8
Quick Reference Guide
❚Door Mirror Controls (P171)
❚Passenger’s Front Airbag
(P49)
❚Rearview Mirror (P170)
❚Accessory Power Socket
(P186)
❚Hood Release Handle (P523)
❚Trunk Opener (P142)
❚Power Door Lock Master Switch (P140)
❚Power Window Switches (P148)
❚Interior Fuse Box (P596)
❚Driver’s Front Airbag (P49)
❚USB Port (P203)
❚Shift Lever
Continuously Variable
Transmission
(P432, 434)
❚ECON Button (P438)
❚Electric Parking Brake Switch (P494)
❚Automatic Brake Hold Button (P497)
❚USB Port* (P203)
❚Wireless Charger* (P187)
❚Glove Box (P182)
❚HomeLink® Buttons* (P353)
21 CIVIC 4D HCM_HMIN_J (KA KL KC)-31TBA6500.book 8 ページ ２０２０年８月２５日　火曜日　午後２時６分

Visual Index
10
Quick Reference Guide❚Maintenance Under the Hood (P521)
❚Windshield Wipers (P165, 545)
❚Tires (P548, 573)
❚Fog Lights* (P161, 538)
❚Power Door Mirrors (P171)
❚How to Refuel (P506)
❚High-Mount Brake Light (P544)
❚Emergency Trunk Release Lever (P144)
❚Opening/Closing the Trunk (P142)
❚Multi-View Rear Camera (P503)
❚Door Lock/Unlock Control (P131)
❚Side Turn Signal Lights* (P157, 542)
❚Headlights (P158, 536)
❚Front Turn Signal Lights (P157, 540)
❚Parking/Daytime Running Lights (P158, 161, 542)
❚Front Side Marker Lights (P158, 541)
❚Taillights (P544)
❚Back-Up Lights (P543)
❚Brake Lights (P543)
❚Rear Turn Signal Lights (P543)
❚Tail/Rear Side Marker Lights (P543)
❚Trunk Release Button* (P143)
❚Rear License Plate Light (P544)
21 CIVIC 4D HCM_HMIN_J (KA KL KC)-31TBA6500.book 10 ページ ２０２０年８月２５日　火曜日　午後２時６分

16
Quick Reference Guide
Steering Wheel (P 169)
To adjust, pull the adjustment lever up,
adjust to the desired position, then push
down the lever back in place.
Unlocking the Front
Doors from the Inside
(P 139) Pull either front door inner handle to unlock
and open it at the same time.
To adjust
To lock
Trunk (P 142)
●To unlock and open the trunk:• Press the trunk opener on the driver’s
door.
• Press the trunk release button on the
remote transmitter or the smart entry
remote.
• Press the trunk release button
* on the
trunk lid.
Power Door Mirrors
(P 171)
●With the ignition switch in ON ( w*1, move
the selector switch to L or R .
●Push the appropriate edge of the
adjustment switch to adjust the mirror.
Trunk Opener
Selector Switch
Adjustment Switch
Power Windows (P 148)
●With the ignition switch in ON ( w*1, open
and close the power windows.
●If the power window lock button is in the
off position, each passenger’s window
can be opened and closed with its own
switch.
●If the power window lock button is in the
on position (indicator is on), each
passenger’s window switch is disabled.
*1:Models with the sma rt entry system have
an ENGINE START/STOP button
instead of an ignition switch.
Power Window Lock Button
Window
Switch Indicator
21 CIVIC 4D HCM_HMIN_J (KA KL KC)-31TBA6500.book 16 ページ ２０２０年８月２５日　火曜日　午後２時６分

Quick Reference Guide
29
Handling the Unexpected (P 571)
Flat Tire (P 573)
●Park in a safe location and replace the
flat tire with the compact spare tire in the
trunk.
Indicators Come On
(P 589)
●Identify the indicator and consult the
owner's manual.
Engine Won’t Start
(P 580)
●If the battery is dead, jump start using a
booster battery.
Blown Fuse (P 595)
●Check for a blown fuse if an electrical
device does not operate.
Overheating (P 587)
●Park in a safe location. If you do not see
steam under the hood, open the hood,
and let the engine cool down.
Emergency Towing
(P 599)
●Call a professional towing service if you
need to tow your vehicle.
21 CIVIC 4D HCM_HMIN_J (KA KL KC)-31TBA6500.book 29 ページ ２０２０年８月２５日　火曜日　午後２時６分

31
Quick Reference Guide
The rear door cannot be
opened from inside the
vehicle. Why?Check if the childproof lock is in
the lock position. If so, open the
rear door with the outside door
handle.
To cancel this function, slide the
lever up to the unlock position.
Why do the doors lock
after I unlocked the doors?If you do not open the doors within 30 seconds, the doors are
relocked automatically for security.
Why does the beeper
sound when I open the
driver's door?The beeper sounds when:
●The exterior lights are left on.
●The key is left in the ignition switch.
●The power mode is in ACCESSORY.
Why does a beeper sound
when I walk away from the
vehicle after I close the
door?The beeper sounds if you move outside the walk away auto
door lock operating range before the door completely closes.
2Locking the doors and trunk (Walk away auto lock ®) (P 133)
Models without smart entry system
Models with smart entry system
Models with smart entry system
21 CIVIC 4D HCM_HMIN_J (KA KL KC)-31TBA6500.book 31 ページ ２０２０年８月２５日　火曜日　午後２時６分

37
uuFor Safe Driving uSafety Checklist
Safe Driving
Safety Checklist
For the safety of you and your passengers, make a habit of checking these items
each time before you drive.
• After everyone has entered the vehicle, be sure all doors are closed and locked.
Locking the doors helps prevent an occupant from being ejected and an outsider
from unexpectedly opening a door.
2 Locking/Unlocking the Doors from the Inside P. 138
•Adjust your seat to a position suitable for driving. Be sure the front seats are
adjusted as far to the rear as possible while allowing the driver to control the
vehicle. Sitting too close to a front airbag can result in serious or fatal injury in a
crash.
2 Adjusting the Seats P. 172
•Adjust head restraints to the proper position. Head restraints are most effective
when the center of the head restraint alig ns with the center of your head. Taller
persons should adjust their head restraint to the highest position.
2Adjusting the Front Head Restraints P. 177
•Always wear your seat belt, and make sure you wear it properly. Confirm that any
passengers are properly belted as well.
2 Fastening a Seat Belt P. 42
•Protect children by using seat belts or child seats according to a child’s age, height
and weight.
2 Child Safety P. 62
1Safety Checklist
If the door and/or trunk open message appears on
the driver information inte rface, a door and/or the
trunk is not completely cl osed. Close all doors and
the trunk tightly until the message disappears.
2 Driver Information Interface Warning and
Information Messages P. 95
21 CIVIC 4D HCM_HMIN_J (KA KL KC)-31TBA6500.book 37 ページ ２０２０年８月２５日　火曜日　午後２時６分

75
Safe Driving
Exhaust Gas Hazard
Carbon Monoxide Gas
The engine exhaust from this vehicle contains carbon monoxide, a colorless,
odorless, and highly toxic gas. As long as you properly maintain your vehicle, carbon
monoxide gas will not get into the interior.
■Have the exhaust system in spected for leaks whenever
• The exhaust system is ma king an unusual noise.
• The exhaust system may have been damaged.
• The vehicle is raised for an oil change.
When you operate a vehicle with the trunk open, airflow can pull exhaust gas into
the interior and create a hazardous condition. If you must drive with the trunk open,
open all the windows and set the climate control system as shown below.
1. Select the fresh air mode.
2. Select the mode.
3. Set the fan speed to high.
4. Set the temperature control to a comfortable setting.
Adjust the climate control system in the same manner if you sit in your parked
vehicle with the engine running.
1 Carbon Monoxide Gas
An enclosed area such as a garage can quickly fill up
with carbon monoxide gas.
Do not run the engine with the garage door closed.
Even when the garage door is open, drive out of the
garage immediately afte r starting the engine.
3WARNING
Carbon monoxide gas is toxic.
Breathing it can cause unconsciousness and
even kill you.
Avoid any enclosed areas or activities that
expose you to carbon monoxide.
21 CIVIC 4D HCM_HMIN_J (KA KL KC)-31TBA6500.book 75 ページ ２０２０年８月２５日　火曜日　午後２時６分