2021 HONDA ACCORD SEDAN sensor

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.

452
uuWhen Driving uBlind spot information System*
Driving
Blind spot information System*
Is designed to detect vehicles in specified alert zones adjacent to your vehicle,
particularly in harder to see areas commonly known as “blind spots.”
When the system detects vehi cles approaching from behind in adjacent lanes, the
appropriate indicator comes on for a few se conds, providing assistance when you
change lanes.
■How the system works
1 Blind spot information System*
Important Safety Reminder
Like all assistance systems, the blind spot information
system has limitations. Over reliance on the blind spot
information system may result in a collision.
The blind spot information system alert indicator may
not come on under the following conditions:
•A vehicle does not stay in the alert zone for more
than two seconds.
•A vehicle is parked in a side lane.•The speed difference betw een your vehicle and the
vehicle you are passing is greater than 6 mph (10
km/h).
•An object not detected by the radar sensors
approaches or passes your vehicle.
•A vehicle running in the adjacent lane is a
motorcycle or other small vehicle.
3WARNING
Failure to visually confirm that it is safe to
change lanes before doing so may result in
a crash and serious injury or death.
Do not rely only on the blind spot
information system wh en changing lanes.
Always look in your mi rrors, to either side
of your vehicle, and behind you for other
vehicles before changing lanes.
Alert zone range
A: Approx. 1.6 ft. (0.5 m)
B: Approx. 10 ft. (3 m)
C: Approx. 10 ft. (3 m) Radar Sensors:
underneath the
rear bumper
corners
Alert ZoneA
B
C
●Your vehicle speed is
between 20 mph (32 km/h)
and 100 mph (160 km/h).
●The transmission is in (D.
* Not available on all models

Continued453
uuWhen Driving uBlind spot information System*
Driving
■When the system detects a vehicle
Blind spot information System Alert Indicator:
Located on the outside rearview mirror on
both sides.
Comes on when:
•A vehicle enters the alert zone from behind
to overtake you with a speed difference of
no more than 31 mph (50 km/h) from your
vehicle.
• You pass a vehicle with a speed difference
of no more than 12 mph (20 km/h).
Blinks and a beeper sounds when:
You move the turn signal lever in the direction
of the detected vehicle. The beeper sounds
three times.1 Blind spot information System*
The system is for your convenience only. Even if an
object is within the alert zone, the following
situations may occur.
•The blind spot informatio n system alert indicator
may not come on due to obstruction (splashes,
etc.) even without the Blind Spot Information
System Not Available driver information
interface appearing.
•The blind spot informatio n system alert indicator
may come on even with the message appearing.
You can change the setting for the blind spot
information system. 2 Customized Features P. 352
The system does not operate when in
( R.
Turn the system off when towing a trailer.
The system may not work properly for the following
reasons:
•The added mass tilts the vehicle and changes the
radar coverage.
•The trailer itself can be detected by the radar
sensors, causing the blind spot information system
alert indicators to come on.
2.0 L engine models
Comes On
Blinks
* Not available on all models