sensor HONDA ACCORD SEDAN 2021 (in English) Owner's Guide

165
Controls
This chapter explains how to operate the various controls necessary for driving.
Clock.................................................. 166
Locking and Unlocking the Doors
Key .................................................. 167
Low Remote Signal Strength ............ 169
Locking/Unlocking the Doors from the Outside .......................................... 170
Locking/Unlocking the Doors from the
Inside ............................................. 177
Childproof Door Locks ..................... 179
Auto Door Locking/Unlocking .......... 180
Opening and Closing the Trunk ....... 181
Security System
Immobilizer System .......................... 184
Security System Alarm ...................... 185
Windows ........................................... 187 Moonroof*........................................ 190
Operating the Switches Around the
Steering Wheel ENGINE START/STOP Button............. 191
Turn Signals ..................................... 194
Light Switches.................................. 195
Fog Lights
*...................................... 197
Daytime Running Lights ................... 198
Auto High-Beam .............................. 199
Wipers and Washers ........................ 202
Rear Defogger/Heat ed Door Mirror
*
Button ........................................... 204 Heated Windshield Button ............... 204
Brightness Control ........................... 205
Driving Position Memory System
*.... 207
Adjusting the Steering Wheel .......... 209
Mirrors Interior Rearview Mirror ................... 210
Power Door Mirrors ......................... 211
Seats .................................................. 212
Interior Convenience Items .............. 223
Climate Control System Using Automatic Climate Control .... 240
Automatic Climate Control Sensors ... 243
Canadian models
* Not available on all models

170
uuLocking and Unlocking the Doors uLocking/Unlocking the Doors from the Outside
Controls
Locking/Unlocking the Doors from the Outside
When you carry the remote, you can lock/
unlock the doors, fuel fill door, and open the
trunk.
You can lock/unlock the doors, fuel fill door
within a radius of about 32 inches (80 cm) of
the outside door handle. You can open the
trunk within about 32 inches (80 cm) radius
from the trunk release button.
■Locking the doors
Touch the door lock sensor on the front door.u Some exterior lights flash; the beeper
sounds; all the doors and fuel fill door
lock; and the security system sets.
■Using the Smart Entry System*1Locking/Unlocking the Doors from the Outside
If the interior light switch is in the door activated
position, the interior light comes on when you unlock
the doors.
No doors opened: The li ght fades out after 30
seconds.
Doors relocked: The light goes off immediately.
2 Interior Lights P. 223
Door Lock Sensor
1Using the Smart Entry System*
If you do not open a door within 30 seconds of
unlocking the vehicle with the smart entry system,
the doors and trunk will automatically relock.
You can lock or unlock doors using the smart entry
system only when the power mode is in VEHICLE OFF.
•Do not leave the remote in the vehicle when you
get out. Carry it with you.
•Even if you are not carr ying the remote, you can
lock/unlock the doors whil e someone else with the
remote is within range.
•The door may be unlocked if the door handle is
covered with water in heavy rain or in a car wash if
the remote is within range.
•If you grip a front door ha ndle or touch a door lock
sensor wearing gloves, the door sensor may be
slow to respond or may not respond by unlocking
or locking the doors.
* Not available on all models

uuOperating the Switches Around the Steering Wheel uLight Switches
196
Controls
Automatic lighting control can be used when
the power mode is in ON.
When the light switch is in AUTO, the
headlights and other exterior lights will switch
on and off automatically depending on the
ambient brightness.
The headlights comes on when you unlock a
door in dark areas with the headlight switch in
AUTO .
u Once you lock the door, the headlights
will go off.
■Automatic Operation (automatic lighting control)1Automatic Operation (aut omatic lighting control)
We recommend that you tu rn on the lights manually
when driving at night, in a de nse fog, or in dark areas
such as long tunnels or parking facilities.
The light sensor is in the location shown below.
Do not cover this light sensor with anything;
otherwise, the automatic lighting system may not
work properly.
Light Sensor
Models without automatic
intermittent wipers
Light Sensor
Models with automatic
intermittent wipers
U.S. models
Canadian models

199
uuOperating the Switches Around the Steering Wheel uAuto High-Beam
Continued
Controls
Auto High-Beam
The front sensor camera detects the light sources ahead of the vehicle such as the
lights of a preceding or oncoming vehicle, or street lights. When you are driving at
night, the system automatically switches the headlights between low beam and high
beam depending on the situation.
When all of the following conditions have been met, the auto high-beam indicator
comes on and the auto high-beam is activated. •The power mode is in ON.
• The light switch is in AUTO.
• The lever is in the low beam position.
• The headlights have been automatically
activated.
• It is dark outside the vehicle.
If the auto high-beam indica tor does not come on even when all the conditions have
been met, carry out the following procedure and the indicator will come on.
• Pull the lever toward you for flashing the high beams then release it while driving.1Auto High-Beam
The auto high-beam system does not always operate
in every situation. This syst em is just for assisting the
driver. Always observe your surroundings and switch
the headlights between high beam and low beam
manually if necessary.
If you find the timing of beam changes inconvenient
for driving, change the headlight beams manually.
The range and the distance at which the camera can
recognize varies de pending on conditions
surrounding your vehicle.
Regarding the handling of the camera mounted to
the inside of the windshiel d, refer to the following.
2 Front Sensor Camera P. 506
For the auto high-beam to work properly:
•Do not place an object that reflects light on the
dashboard.
•Keep the windshield around the camera clean.
•When cleaning the windshield, be careful not to
apply the windshield cleans er to the camera lens.
•Do not attach an object, sticker or film to the area
around the camera.
•Do not touch the camera lens.
If the camera receives a st rong impact, or repairing of
the area near the camera is required, consult a dealer.
■How to Use the Auto High-Beam
Front Sensor Camera
Auto High-Beam
Indicator
Light Switch

203
uuOperating the Switches Around the Steering Wheel uWipers and Washers
Controls
When you push the lever down to AUTO, the
windshield wipers sweep once, and go into
the automatic mode.
The wipers operate intermittently, at low
speed, or at high speed and stops in
accordance with the amount of rainfall the
rainfall sensor detects.
■AUTO sensitivity adjustment
When the wiper function is set to AUTO, you
can adjust the sensitivity of the rainfall sensor
(using the adjustment ring) so that wipers will
operate in accordance with your preference.
Sensor sensitivity
■Automatic Intermittent Wipers*1 Wipers and Washers
If the wipers st op operating due to an obstacle such
as the build-up of snow, pa rk the vehicle in a safe
place.
Rotate the wiper switch to OFF, and set the power
mode to ACCESSORY or VEHICLE OFF, then remove
the obstacle.
1 Automatic Intermittent Wipers*
The rainfall sensor is in the location shown below.
NOTICE
AUTO should always be turned OFF before the
following situations in order to prevent severe
damage to the wiper system:
•Cleaning the windshield
•Driving through a car wash
•No rain present
Rainfall Sensor
Adjustment Ring
Low Sensitivity
High Sensitivity
* Not available on all models

216
uuSeats uRear Seats
Controls
Rear Seats
1. Remove the center shoulder belt from the
guide.
2. Pull the release lever in the trunk to release
the lock.
3. Fold the seat-back down.
■Folding Down the Rear Seat(s)1Folding Down the Rear Seat(s)
The rear seat-back(s
*) can be folded down to
accommodate bulkier items in the trunk.
Never drive with the seat-back folded down and the
trunk lid open.
2 Exhaust Gas Hazard P. 78
To lock a seat-back upright, push it backwards until it
locks.
When returning the seat-back to its original position,
push it firmly back. Also, m ake sure all rear shoulder
belts are positioned in front of the seat-back, and the
center shoulder belt is re -positioned in the guide.
Make sure that the folded seat-back does not press
against the front passenger seat, as this can cause the
weight sensors in the front passenger seat to work
improperly. 2 Passenger Front Airbag Off Indicator P. 61
Make sure all items in the trunk or items
extending through the opening into the rear
seat is properly secured. Loose items can fly
forward if you have to brake hard.
The front seat(s) must be far enough forward so they
do not interfere with the rear seats as they fold
down.
Guide
Center
Shoulder Belt
Release
Lever
Release
Lever*
* Not available on all models

243
uuClimate Control System uAutomatic Climate Control Sensors
Controls
Automatic Climate Control Sensors
The automatic climate control system is
equipped with sensors. Do not cover or spill
any liquid on them.
Sensor
Sensor

403
Driving
This chapter discusses driving and refueling.
Before Driving................................... 404
Towing a Trailer ................................ 409
When Driving Starting the Engine .......................... 414
Precautions While Driving................. 420
Transmission .................................... 421
Shifting ............................ 422, 429, 431
SPORT Mode
*.................................. 435
ECON Mode .................................... 436
Auto Idle Stop
*................................ 437
Adaptive Damper System*............... 442Vehicle Stability AssistTM (VSA ®), aka Electronic
Stability Control (ESC), System ..............443
Agile Handling Assist ..............................445
Tire Pressure Monitoring System (TPMS) .... 446Tire Pressure Monitoring System (TPMS) - Required Federal Explanation ......... 450
Blind spot information System
*........... 452
Honda Sensing ®................................ 455
Collision Mitigati on Braking System
TM
(CMBSTM) ....................................... 458
Low Speed Braking Control*............ 467
Adaptive Cruise Control (ACC) with Low
Speed Follow ................................. 472
Lane Keeping Assist System (LKAS).... 488
Road Departure Mitigation (RDM) System ....................................... 496
Traffic Sign Recognition System ....... 500 Front Sensor Camera ....................... 506
Radar Sensor ................................... 508
Sonar Sensors
*................................ 509
Braking
Brake System ................................... 510
Anti-lock Brake System (ABS) ........... 518
Brake Assist System ......................... 519
Parking Your Vehicle ........................ 520
Multi-View Rear Camera .................. 531
Refueling ........................................... 533
Fuel Economy and CO
2 Emissions .... 536
Turbo Engine Vehicle ....................... 537
* Not available on all models

406
uuBefore Driving uDriving Preparation
Driving
• Be sure items placed on the floor behind the front seats cannot roll under the
seats.
u They can interfere with the driver’s ability to operate the pedals, or the
operation of the seats, or the opera tion of the sensors under the seats.
• Everyone in the vehicle must fasten their seat belt.
2Fastening a Seat Belt P. 42
•Make sure that the indicators in the instrument panel come on when you start the
vehicle, and go off soon after.
u Always have a dealer check the vehicle if a problem is indicated.
2 Indicators P. 82

412
uuTowing a Trailer uDriving Safely with a Trailer
Driving
Driving Safely with a Trailer
• Have the trailer properly serviced and keep it in good condition.
• Make sure that all the weights and load in the vehicle and trailer are within limits.
2Towing Load Limits P. 409
•Securely attach the hitch, safety chains, and other necessary parts to the trailer.
• Securely store all the items in and on the tr ailer so that they do not shift while
driving.
• Check if the lights and brakes on the trailer are working properly.
• Check the pressure of the traile r tires, including the spare.
• Turn off the Low Speed Braking Control syst em. It may activate if it detects the
vehicle being towed as an obstacle.
2 System On and Off P. 469
•Turn off the rear parking sensor system.
2 Turning off All Rear Sensors P. 526
•Drive slower than normal.
• Obey posted speed limits for vehicles with trailers.
• Use the
(D position when towing a trailer on level roads.
• Turn more slowly and with a wider turning arc than normal.
• Allow more time and distance for braking.
• Do not brake or turn suddenly.
■Things You Need To Know Before Towing a Trailer
■Towing Speeds and Gears
■Turning and Braking
2.0 L engine models
1Driving Safely with a Trailer
Operating speed when towing a trailer must not
exceed 62 mph (100 km/h).
Parking
In addition to the normal precautions, place wheel
chocks at each of the trailer’s tires.
Models with Low Speed Braking Control
1Towing Speeds and Gears
When towing a fixed-sided trailer (e.g., camper), do
not exceed 55 mph (88 km/h). At higher speeds, the
trailer may sway or af fect vehicle handling.