2021 HONDA ACCORD SEDAN ECO mode

427
uuWhen Driving uShifting
Continued
Driving
Use the paddle shifters to change betw een 1st and 10th gears without removing
your hands from the steering wheel. The trans mission will switch to the sequential
mode.
■When the transmi ssion is in (D:
The vehicle will go into the sequential m ode momentarily, and the gear selection
indicator will come on.
When the vehicle goes into the sequential mode by
(- paddle shifter and the lower
gear is available, the tran smission properly selects single or double gear change.
Once you start traveling at a constant speed , the sequential mode will automatically
switch off, and the gear sele ction indicator will go off.
Hold the
(+ paddle shifter for two seconds to return to normal drive.
■When the transmi ssion is in (D with SPORT mode:
The vehicle will go into th e sequential mode, and the M (sequential mode) indicator
and gear selection indicator will come on.
If the vehicle speed increases and the engi ne speed reaches near the tachometer’s
red zone, the transmission automatically shifts up to the next gear.
You can cancel this mode by holding the
(+ paddle shifter for two seconds. When
the sequential mode is canceled, the sequential mode indicator and gear selection
indicator go off.
■Sequential Mode

Continued433
uuWhen Driving uShifting
Driving
Use the paddle shifters to change between 1st and 7th speeds without releasing
your hands from the steering wheel. The transmission switches to the 7-speed
manual shift mode when you pull a paddle shifter while driving. This mode is useful
when engine braking is needed.
■When the transmi ssion is in (D:
The shift mode goes into the 7-speed ma nual shift mode temporarily, and the
number is displayed in the gear selection indicator.
The 7-speed manual shift mode is canceled automatically if you drive at constant
speed or accelerate, and the number in the gear selection indicator goes off.
You can cancel this mode by pulling the
(+ paddle shifter for a few seconds.
The 7-speed manual shift mode is especial ly useful when reducing the vehicle speed
temporarily before making a turn.
■When the transmi ssion is in (D with SPORT mode:
The shift mode goes into the 7-speed manual shift mode. The M indicator and the
speed number are displayed in the gear selection indicator. As the vehicle speed
slows down, the transmission automaticall y shifts down accordingly. When the
vehicle comes to a stop, it automatically shifts down into 1st.
If the vehicle speed increases and the engi ne speed reaches near the tachometer’s
red zone, the transmission automatically shifts up.
You can only pull away in 1st speed.
When canceling the 7-speed manual shift mode, pressing the SPORT button. When
the 7-speed manual shift mode is canceled, the M indicator and gear selection
indicator go off.
■7-Speed Manual Shift Mode1 7-Speed Manual Shift Mode
In the 7-speed manual shif t mode, the transmission
shifts up or down by opera ting either paddle shifter
under the following conditions:
Shift Up: The engine sp eed reaches the lowest
threshold of the higher speed position.
Shift Down: The engine sp eed reaches the highest
threshold of the lower speed position.
When the engine speed reaches near the
tachometer’s red zone, the transmission shifts up
automatically.
When the engine speed reaches the lowest threshold
of the selected speed positi on, the transmission shifts
down automatically.
Operating the paddle shifte rs on slippery surfaces
may cause the tires to lock up. In this case, the 7-
speed manual shift mode is canceled and goes back
to the normal
( D driving mode.

436
uuWhen Driving uECON Mode
Driving
ECON Mode
The ECON button turns the ECON mode on and off.
The ECON mode helps you improve your fuel economy by adjusting the
performance of the engine, transmiss ion and climate control system.
*1 : Models without the adaptive damper system
*2 : Models with the adaptive damper system
*3 : Models without SPORT mode
*4 : Models with SPORT mode
1ECON Mode
While in ECON mode, the climate control system has
greater temperature fluctuation.
*1
*2 *3
*4ECON
Button
ECON Mode Indicator

437
uuWhen Driving uAuto Idle Stop*
Continued
Driving
Auto Idle Stop*
To help maximize fuel economy, the engine automatically stops when the vehicle
comes to a stop, depending on environmental and vehicle operating conditions. The
indicator (green) comes on at this time.
The environmental and vehicle conditions that
impact Auto Idle Stop system operation are
varied.
2Auto Idle Stop Activates When: P. 439
The engine then restarts once the vehicle is
about to move again, and the indicator
(green) goes off.
2The Engine Automatically Restarts When:
P. 441
If the driver’s door is opened while the
indicator (green) come s on, a buzzer sounds
to notify you that the Auto Idle Stop function
is in operation.
1 Auto Idle Stop*
The 12-volt battery insta lled in this vehicle is
specifically designed for a m odel with Auto Idle Stop.
Using a 12-volt battery other than this specified type
may shorten the 12-volt ba ttery life, and prevent
Auto Idle Stop from activati ng. If you need to replace
the 12-volt battery, make sure to select the specified
type. Ask a dealer for more details.
The duration of the Au to Idle Stop operation:
•Increase in the ECON mode, compared to when the
ECON mode is off, with climate control in use.
2 ECON Mode P. 436
Auto Idle Stop
Indicator (Green)
* Not available on all models

441
uuWhen Driving uAuto Idle Stop*
Driving
• The brake pedal is released (without the automatic brake hold system activated).
• The accelerator pedal is depressed (with th e automatic brake hold system activated).
2Automatic Brake Hold P. 515
■The engine restarts even if the brake pedal is depressed*1 when:
• The Auto Idle Stop OFF button is pressed.
• A steering wheel is operated.
• The transmission is put into
(R, (S*, and (L*, or when it is set from (N to (D.
u If you put the tra nsmission into
(P after the Auto Idle Stop activates, the Auto
Idle Stop continues to operate. In this case, the engine restarts when you move
the shift lever other than
(P. When operating the shift lever, the brake pedal
must be firmly depressed.
• The pressure on the brake pedal is reduced and the vehicle starts moving while
stopped on an incline.
• The brake pedal is released slightly during a stop.
• The battery charge becomes low.
• The accelerator pedal is depressed.
• The driver’s seat belt is unlatched.
• is on (indicator on).
• The climate control system is in use, and the difference between the set
temperature and actual interior temperature becomes significant.
• The climate control system is being used to dehumidify the interior.
• The vehicle ahead of you starts again when your vehicle stops automatically with
ACC with Low Speed Follow.
Briefly keeps the brake applied after releasin g the brake pedal to restart the engine.
This can keep your vehicle from unexpe ctedly moving while on an incline.
■The Engine Automatically Restarts When:
■Starting Assist Brake Function
1The Engine Automatically Restarts When:
If you are using an electroni c device during Auto Idle
Stop, the device may tempor arily be turned off when
the engine restarts.
1 The engine restarts even if the brake pedal is depressed*1 when:
*1: With the automatic brak e hold system activated,
you can release the brake pedal while Auto Idle Stop
is in operation.
If the automatic brake hold system has been turned
off, or if there is a problem with the system, the
engine will restart automatically when you release
the brake pedal.
2 Automatic Brake Hold P. 515
* Not available on all models

443
uuWhen Driving uVehicle Stability AssistTM (VSA ®), aka Electronic Stability Control (ESC), System
Continued
Driving
Vehicle Stability AssistTM (VSA ®), aka Electronic
Stability Control (ESC), System
VSA ® helps stabilize the vehicle during cornering if the vehicle turns more or less
than what was intended. It also assists in maintaining traction on slippery surfaces.
It does so by regulating engine ou tput and selectively applying the brakes.
When VSA ® activates, you may notice that the
engine does not respond to the accelerator.
You may also notice some noise from the
hydraulic brake system. You will also see the
indicator blink.
■VSA ® Operation
1 Vehicle Stability AssistTM (VSA® ), aka Electronic Stability Control
(ESC), System
The VSA ® may not function properl y if tire type and
size are mixed. Make sure to use the same size and
type of tire, and the air pressures as specified.
When the VSA ® system indicator comes on and stays
on while driving, there ma y be a problem with the
system. While this may not interfere with normal
driving, have your vehi cle checked by a dealer
immediately.
VSA ® cannot enhance stability in all driving situations
and does not control the entire braking system. You
still need to drive and corner at speeds appropriate
for the conditions and always leave a sufficient
margin of safety.
The main function of the VSA ® system is generally
known as Electronic Stability Control (ESC). The
system also includes a traction control function.
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.
VSA ® System
Indicator

446
uuWhen Driving uTire Pressure Monitoring System (TPMS)
Driving
Tire Pressure Monitoring System (TPMS)
Instead of directly measuring the pressu re in each tire, the TPMS on this vehicle
monitors and compares the rolling radius and rotational characteristics of each
wheel and tire while you are driving to determine if one or more tires are
significantly under-inflated.
This will cause the low tire pressure/TPMS
indicator to come on and a message to appear
on the driver information interface.1 Tire Pressure Monitoring System (TPMS)
The system does not monitor the tires when driving
at low speed.
Conditions such as low ambient temperature and
altitude change directly a ffect tire pressure and can
trigger the low tire pressure/TPMS indicator to come on.
Tire pressure checked and inflated in:
•Warm weather can beco me under-inflated in
colder weather.
•Cold weather can become over-inflated in warmer
weather.
The low tire pressure/TPMS indicator will not come
on as a result of over inflation.
The TPMS may not function pr operly if tire type and
size are mixed. Make sure to use the same size and
type of tire. 2 Checking and Maintaining Tires P. 577
The low tire pressure/TPMS indicator may come on
with a delay or may not come on at all when:
•You rapidly accelerate, decelerate, or turn the
steering wheel.
•You drive on snowy or slippery roads.
•Tire chains* are used.
Low Tire Pressure/
TPMS Indicator
* Not available on all models

Continued447
uuWhen Driving uTire Pressure Monitoring System (TPMS)
Driving
1Tire Pressure Monitoring System (TPMS)
The low tire pressure/TPMS indicator may come on
under the following conditions:
•A compact spare tire is used.
•There is a heavier and une ven load on the tires,
such as when towing a trailer*, than the condition
at calibration.
•Tire chains* are used.
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.
* Not available on all models