2021 HONDA CIVIC SEDAN ECO mode

11
Quick Reference Guide
Eco Assist® System (P 438)
Ambient Meter●The color of the ambient meter changes
to green to indicate that the vehicle is
being driven in a fuel efficient manner.
ECON Button (P 438)
Helps maximize fuel economy.
ECON Mode Indicator (P 89)
Comes on when the ECON button is pressed.
The message is displayed for a few seconds when the
ECON button is pressed.
* Not available on all models
21 CIVIC 4D HCM_HMIN_J (KA KL KC)-31TBA6500.book 11 ページ ２０２０年８月２５日　火曜日　午後２時６分

13
Quick Reference Guide
Instrument Panel (P 77)
System Indicators
Malfunction Indicator
Lamp
Low Oil Pressure
Indicator
Charging System
Indicator
Anti-lock Brake System
(ABS ) Indicator
Vehicle Stability
Assist
TM (VSA ®)
System Indicator
Vehicle Stability
Assist
TM (VSA ®) OFF
Indicator
Low Tire Pressure/
TPMS Indicator
*
Electric Power
Steering (EPS) System
Indicator
Seat Belt Reminder
Indicator
System Indicators
Parking Brake and
Brake System
Indicator (Red) Supplemental
Restraint System
Indicator
Tachometer
Speedometer Fuel Gauge
Immobilizer System
Indicator/Security
System Alarm Indicator
Shift Lever Position Indicator/
Transmission System Indicator
Low Fuel Indicator
ECON Mode Indicator Turn Signal and
Hazard Warning
Indicators
Parking Brake and
Brake System
Indicator (Amber)
System Indicators
U.S.
Canada
U.S.
Canada Automatic Brake Hold
System Indicator
Automatic Brake Hold
IndicatorU.S.
Canada Temperature Gauge
Lights Indicators
Lights On Indicator
High Beam Indicator
Fog Light Indicator*
Adaptive Cruise
Control (ACC) with
Low Speed Follow
Indicator (Amber/
Green)
System Message
Indicator
Collision Mitigation
Braking SystemTM
(CMBSTM) Indicator
Road Departure
Mitigation (RDM)
Indicator
Lane Keeping Assist
System (LKAS)
Indicator (Amber/
Green)
Ambient Meter
Gauges (P 108)/Driver Information Interface (P 109)/System Indicators (P 78)
M (7-speed manual shift mode)
Indicator/Shift Indicator
*
Auto High-Beam
Indicator
* Not available on all models
21 CIVIC 4D HCM_HMIN_J (KA KL KC)-31TBA6500.book 13 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

uuSeat Belts uAbout Your Seat Belts
40
Safe DrivingThe seat belt system in cludes an indicator on
the instrument panel to remind the driver or a
front passenger or both to fasten their seat
belts.
If the ignition switch is turned to ON
(w*1 and
a seat belt is not fastened, a beeper will sound
and the indicator will blink. After a few
seconds, the beeper will stop and the
indicator will come on and remain illuminated
until the seat belt is fastened.
The beeper will periodically sound and the
indicator will blink while the vehicle is moving
until the seat belt is fastened.
*1: Models with the smart entry system have an ENGINE START/STOP button instead of an
ignition switch.
■Seat Belt Reminder1 Seat Belt Reminder
The indicator will also co me on if a front passenger
does not fasten their seat be lt within six seconds after
the ignition switch is turned to ON
( w*1.
When no one is sitting in th e front passenger’s seat,
the indicator will not come on and the beeper will not
sound. The indicator also may not come on and the
beeper may not sound when the occupant is not
heavy enough to trigger th e weight sensor. Such
occupants (e.g., infants and smaller children) should
be moved to the rear seat as a deploying front airbag
likely will injure or kill them.
2 Protecting Child Passengers P. 62
21 CIVIC 4D HCM_HMIN_J (KA KL KC)-31TBA6500.book 40 ページ ２０２０年８月２５日　火曜日　午後２時６分

47
uuAirbags uAirbag System Components
Continued
Safe Driving
The front, front side, and side curtain
airbags are deployed according to the
direction and severity of impact. Both side
curtain airbags are deployed in a rollover.
The airbag system includes:
aTwo SRS (Supplemental Restraint System)
front airbags. The driver’s airbag is stored
in the center of the steering wheel; the
front passenger’s airbag is stored in the
dashboard. Both are marked SRS
AIRBAG.
bTwo side airbags, one for the driver and
one for the front passenger. The airbags
are stored in the outer edges of the seat-
backs. Both are marked SIDE AIRBAG.
cTwo side curtain ai rbags, one for each
side of the vehicle. The airbags are stored
in the ceiling, abov e the side windows.
The front and rear pillars are marked
SIDE CURTAIN AIRBAG .
dAn electronic control unit that, when the
vehicle is on, continually monitors
information about the various impact
sensors, seat and buckle sensors, rollover
sensor, airbag activators, seat belt
tensioners, and other vehicle
information. During a crash event the
unit can record such information.
eAutomatic front seat belt tensioners. In
addition, the driver’s and front
passenger’s seat belt buckles incorporate
sensors that detect whether or not the
belts are fastened.
fA driver’s seat position sensor. This
sensor detects the driver’s seat slide
position to help determine the optimal
deployment of the driver’s airbag.
gWeight sensors in the front passenger’s
seat. The sensors are used for occupant
classification to activate or deactivate the
front passenger’s airbag.
hImpact sensors that can detect a
moderate-to-severe front or side impact.
iAn indicator on the dashboard that alerts
you that the front passenger’s front
airbag has been turned off.
jAn indicator on the instrument panel that
alerts you to a possib le problem with your
airbag system or seat belt tensioners.
kA rollover sensor that can detect if your
vehicle is about to ro ll over and signal the
control unit to deploy both side curtain
airbags.
21 CIVIC 4D HCM_HMIN_J (KA KL KC)-31TBA6500.book 47 ページ ２０２０年８月２５日　火曜日　午後２時６分

uuAirbags uFront Airbags (SRS)
50
Safe DrivingFront airbags are designed to inflate during moderate-to-severe frontal collisions.
When the vehicle decelerates suddenly, the sensors send information to the control
unit which signals one or both front airbags to inflate.
A frontal collision can be either head-on or angled between two vehicles, or when a
vehicle crashes into a stationary object, such as a concrete wall.
While your seat belt restrains your torso, the
front airbag provides supplemental protection
for your head and chest.
The front airbags deflate immediately so that
they won't interfere with the driver's visibility
or the ability to steer or operate other
controls.
The total time for inflation and deflation is so fast that most occupants are not
aware that the airbags depl oyed until they see them lying in front of them.
■Operation
■How the Front Airbags Work1How the Front Airbags Work
Although the driver's and fr ont passenger's airbags
normally inflate within a spli t second of each other, it
is possible for only one airbag to deploy. This can
happen if the severity of a collision is at the margin,
or threshold, that determines whether or not the
airbags will deploy. In such cases, the seat belt will
provide sufficient protec tion, and the supplemental
protection offered by the airbag would be minimal.
21 CIVIC 4D HCM_HMIN_J (KA KL KC)-31TBA6500.book 50 ページ ２０２０年８月２５日　火曜日　午後２時６分

58
uuAirbags uAirbag System Indicators
Safe Driving
Airbag System Indicators
If a problem occurs in the airbag system , the SRS indicator will come on and a
message appears on the driver information interface.
■When the ignition sw itch is turned to
ON
(w*1
The indicator comes on for a few seconds,
then goes off. This tells you the system is
working properly.
If the indicator comes on at any other time, or does not come on at all, have the
system checked by a dealer as soon as po ssible. If you don’t, your airbags and seat
belt tensioners may not work properly when they are needed.
*1: Models with the smart entry system have an ENGINE START/STOP button instead of an
ignition switch.
■Supplemental Restraint System (SRS) Indicator
1 Supplemental Restraint Sy stem (SRS) Indicator
3WARNING
Ignoring the SRS indicator can result in
serious injury or death if the airbag systems
or tensioners do not work properly.
Have your vehicle checked by a dealer as
soon as possible if th e SRS indicator alerts
you to a possible problem.
21 CIVIC 4D HCM_HMIN_J (KA KL KC)-31TBA6500.book 58 ページ ２０２０年８月２５日　火曜日　午後２時６分

61
uuAirbags uAirbag Care
Safe Driving
Airbag Care
You do not need to, and should not, perform any maintenance on or replace any
airbag system components yourself. However, you should have your vehicle
inspected by a dealer in the following situations:
■When the airbags have deployed
If an airbag has inflated, th e control unit and other related parts must be replaced.
Similarly, once an automatic seat belt te nsioner has been activated, it must be
replaced.
■When the vehicle has been in a moderate-to-severe collision
Even if the airbags did not inflate, have yo ur dealer inspect the following: the driver’s
seat position sensor, weight sensors in the passenger’s seat, front seat belt
tensioners, and each seat belt that was worn during the crash.
■Do not remove or modify a front seat without consulting a dealer
This would likely disable or affect the proper operation of the driver’s seat position
sensor or the weight sensors in the passenge r’s seat. If it is necessary to remove or
modify a front seat to accommodate a pe rson with disabilities, contact a Honda
dealer, or for U.S. vehicles, American Ho nda Automobile Customer Service at 1-800-
999-1009 and for Canadian vehicles, Hond a Canada Customer Relations at 1-888-
9-HONDA-9.
1 Airbag Care
We recommend against the use of salvaged airbag
system components, includi ng the airbag, tensioners,
sensors, and control unit.
21 CIVIC 4D HCM_HMIN_J (KA KL KC)-31TBA6500.book 61 ページ ２０２０年８月２５日　火曜日　午後２時６分