sensor HONDA ACCORD SEDAN 2021 (in English) Repair Manual

uuParking Your Vehicle uCross Traffic Monitor*
528
Driving
The system activates when:
• The power mode is in ON.
• The Cross Traffic Monitor is turned on.
2 Cross Traffic Monitor On and Off P. 530
•The transmission is in (R.
• Your vehicle is moving at 3 mph (5 km/h) or
lower.
When a vehicle is detected approaching from a rear corner, Cross Traffic Monitor
alerts you with a buzzer and a displayed warning.
The system will not detect a vehicle that approaches from directly behind your
vehicle, nor will it provide alerts about a detected vehicle when it moves directly
behind your vehicle.
The system does not provide alerts for a vehicle that is moving away from your
vehicle, and it may alert for pedestri ans, bicycles, or stationary objects.
■How the System Works1Cross Traffic Monitor*
Cross Traffic Monitor may not detect or may delay
alerting an approach ing vehicle, or may alert without
an approaching vehicle under the following
conditions:
•An obstacle, such as a nother vehicle and a wall,
near your vehicle’s rear bumper, is blocking the
radar sensor’s scope.
•Your vehicle is moving at the speed of about 3 mph
(5 km/h) or higher.
•A vehicle is approaching at the speed other than
between about 6 mph (10 km/h) and 16 mph (25
km/h).
•The system picks up external interference such as
other radar sensors from an other vehicle or strong
radio wave transmitted fr om a facility nearby.
•Either corner of the rear bumper is covered with
snow, ice, mud or dirt.
•When there is bad weather.
•Your vehicle is on an incline.
•Your vehicle is tilted due to a heavy load in the rear.•Your vehicle is reversing towards a wall, a pole, a
vehicle, and so on.
The rear bumper or the sens ors have been improperly
repaired or the rear bum per has been deformed.
Have your vehicle checked by a dealer.
For proper operation, always keep the rear bumper
corner area clean.
Do not cover the rear bumper corner area with labels
or stickers of any kind.
Radar sensors:
Underneath the rear bumper
corners
* Not available on all models

Continued529
uuParking Your Vehicle uCross Traffic Monitor*
Driving
An arrow icon appears on the side a vehicl e is approaching on the audio/information
screen.
■When the System Detects a Vehicle1 When the System Detects a Vehicle
If the on the lower right changes to in amber
when the transmission is in
( R, mud, snow or ice,
etc. may have accumulated in the vicinity of the
sensor. The system is temp orarily canceled. Check the
bumper corners for any obs tructions, and thoroughly
clean the area if necessary.
If the comes on when the transmission is in
( R,
there may be a problem with the Cross Traffic
Monitor system. Do not use the system and have your
vehicle checked by a dealer.
If the display remains the same with the transmission
in
( R, there may be a problem with the rear camera
system and the Cross Traffic Monitor system.
Do not use the system and have your vehicle checked
by a dealer.
Wide View
Normal View Arrow IconTop Down View

586
Maintenance
Battery
Checking the Battery
The condition of the battery is monitored by a
sensor located on the negative terminal of the
battery. If there is a problem with this sensor,
the driver information interface will display a
warning message. If this happens, have your
vehicle inspected by a dealer.
Check the battery te rminals for corrosion
monthly.
If your vehicle’s battery is disconnected or goes dead:
• The audio system is disabled.
2 Reactivating the audio system P. 249
•The clock resets.
2 Clock P. 166
•The immobilizer system needs to be reset.
2 Immobilizer System Indicator P. 98
1Battery
WARNING: Battery post, terminals,
and related accessories contain lead
and lead compounds.
Wash your hands after handling.
When you find corrosion, cl ean the battery terminals
by applying a baking powder and water solution.
Clean the terminals with a damp towel. Cloth/towel
dry the battery. Coat the terminals with grease to
help prevent future corrosion.
3WARNING
The battery gives off explosive hydrogen
gas during normal operation.
A spark or flame can cause the battery to
explode with enough force to kill or
seriously hurt you.
When conducting any battery
maintenance, wear prot ective clothing and
a face shield, or have a skilled technician do
it.
Models without navigation system
Canadian models

590
Maintenance
Cleaning
Interior Care
Use a damp cloth with a mixture of mild detergent and warm water to remove dirt.
Use a clean cloth to remove detergent residue.
Use a soft brush with a mixture of mild soap and warm water to clean the seat belts.
Let the belts air dry. Wipe the openings of the seat belt anchors using a clean cloth.
Wipe using a glass cleaner.
■Cleaning Seat Belts
1 Interior Care
Do not spill liquids inside the vehicle. Electrical
devices and systems may ma lfunction if liquids are
splashed on them.
Do not use silicone based sprays on electrical devices
such as audio devices and switches. Doing so may
cause the items to malfunction or cause a fire inside
the vehicle. If a silicone based spray is inadvertently
used on electrical devi ces, consult a dealer.
Depending on their compos ition, chemicals and
liquid aromatics may cause discoloration, wrinkles,
and cracking to resin-ba sed parts and textiles.
Do not use alkali solvents or organic solvents such as
benzene or gasoline.
After using chemicals, make su re to gently wipe them
away using a dry cloth.
Do not place used cloths on top of resin based parts
or textiles for long periods of time without washing.
Opening
■Cleaning the Window1Cleaning the Window
Wires are mounted to the in side of the rear window.
Wipe along the same direct ion as the wires with a
soft cloth so as not to damage them.
Be careful not to spill fluids, such as water or glass
cleaner, on or around the co ver of both the front
sensor camera and the rainfall/light sensor
*.
* Not available on all models

Index
648
Index
Index
Numbers
7-Speed Manual Shift Mode.................... 433
Operation ................................................ 434
A
ABS (Anti-lock Brake System) ................... 518
Accessories and Modifications ................. 595
Accessory Power Sockets .......................... 231
Adaptive Cruise Control (ACC) with Low
Speed Follow ........................... 103, 104, 472
Adaptive Damper System ......................... 442
Additives
Coolant ................................................... 561
Engine Oil ................................................ 553
Washer .................................................... 565
Additives, Engine Oil ................................ 553
Adjusting
Armrest ................................................... 222
Front Seats .............................................. 212
Head Restraints........................................ 219
Mirrors .................................................... 210
Rear Seats................................................ 216
Steering Wheel ........................................ 209
Agile Handling Assist ................................ 445
Air Conditioning System (Climate Control System) ........................ 240
Changing the Mode ................................ 240
Defrosting the Windshield and Windows ............................................... 241
Dust and Pollen Filter ............................... 589 Recirculation/Fresh Air Mode ................... 240
Sensors ................................................... 243
Synchronized Mode................................. 242
Using Automatic Climate Control ............ 240
Air Pressure ............................... 578, 635, 637
Airbags ........................................................ 46
Advanced Airbags ..................................... 52
After a Collision ........................................ 49
Airbag Care............................................... 63
Event Data Recorder .................................... 0
Front Airbags (SRS) .................................... 49
Indicator.............................................. 60, 93
Knee Airbags............................................. 54
Passenger Front Airbag Off Indicator ......... 61
Sensors ..................................................... 46
Side Airbags .............................................. 57
Side Curtain Airbags.................................. 59
AM/FM Radio ............................................ 278
Android Auto ........................................... 321
Anti-lock Brake System (ABS) .................. 518
Indicator.................................................... 93
Apple CarPlay ........................................... 314
Armrest ..................................................... 222
AT&T Hotspot ........................................... 312
Audio Remote Controls ........................... 250
Audio System ............................................ 246
Adjusting the Sound................................ 272
Audio/Information Screen........................ 254
Display Setup .......................................... 273
Error Messages ........................................ 328
General Information ................................ 330 Home Screen .......................................... 259
How to Update Wirelessly ....................... 266
How to Update with a USB Device .......... 270
How to use Siri Eyes Free ........................ 313
iPod ........................................................ 293
Limitations for Manual Operation ............ 274
MP3/WMA/AAC ..................................... 296
Reactivating ............................................ 249
Remote Controls ..................................... 250
Security Code ......................................... 249
Selecting an Audio Source ...................... 274
Status Area ............................................. 264
System Updates ...................................... 266
Theft Protection ...................................... 249
USB Flash Drives.............................. 296, 331
USB Ports ................................................ 247
Wallpaper Setup ..................................... 257
Audio/Information Screen ....................... 254
Authorized Manuals ................................ 646
Auto Door Locking/Unlocking ................ 180
Customize .............................................. 369
Auto High-Beam ...................................... 199
Indicator ................................................... 94
Auto Idle Stop .......................................... 437
Auto Idle Stop OFF Button ...................... 438
Automatic Brake Hold ............................. 515
Indicator ........................................... 86, 515
Automatic Brake Hold System
Indicator ........................................... 86, 515
Automatic Intermittent Wipers .............. 203
Automatic Lighting .................................. 196

649
Index
Automatic TransmissionCreeping................................................. 421
Fluid ....................................................... 563
Kickdown ............................................... 421
Shift Operation ....................................... 423
Shifting ................................................... 422
Average Fuel Economy ............................ 145
Average Speed ......................................... 147
B
Battery...................................................... 586
Charging System Indicator ................ 88, 615
Jump Starting ......................................... 608
Maintenance (Checking the Battery) ....... 586
Maintenance (Replacing) ......................... 588
Belts (Seat) .................................................. 38
Beverage Holders ..................................... 227
Blind spot information System ................ 452
Bluetooth ® Audio ..................................... 299
Bluetooth ® HandsFreeLink ®................... 375
Booster Seats (For Children) ...................... 77
Brake System ............................................ 510
Anti-lock Brake System (ABS) .................. 518
Automatic Brake Hold ............................. 515
Brake Assist System................................. 519
Fluid ....................................................... 564
Foot Brake .............................................. 514
Indicator ............................. 83, 84, 617, 618
Parking Brake.......................................... 510
Brightness Control (Instrument Panel) ... 205Bulb Replacement
.................................... 566
Brake, Taillight, Rear Side Marker Lights and
Rear Turn Signal Light ............................ 569
Fog Lights ................................................ 568
Front Side Marker Lights .......................... 568
Front Turn Signal Lights ........................... 568
Headlights ............................................... 566
High-Mount Brake Light .......................... 573
Parking/Daytime Running Lights .............. 568
Rear License Plate Lights .......................... 573
Side Turn Signal/Em ergency Indicator
Lights .................................................... 568
Taillight, Brake Light and Back-Up Light ... 571
Bulb Specifications ........................... 634, 636
C
Carbon Monoxide Gas ................................ 78
Cargo Hooks ............................................. 229
Carrying Cargo .................................. 405, 407
Center Pocket ........................................... 225
Certification Label .................................... 638
Changing Bulbs ......................................... 566
Charging System Indicator ................. 88, 615
Child Safety ................................................. 64
Childproof Door Locks ............................. 179
Emergency Trunk Opener ........................ 183
Child Seat .................................................... 64
Booster Seats ............................................. 77
Child Seat for Infants ................................. 66
Child Seat for Small Children ..................... 67 Installing a Child Seat wi
th a Lap/Shoulder Seat
Belt ......................................................... 72
Larger Children ......................................... 76
Rear-facing Child Seat ............................... 66
Selecting a Child Seat ................................ 68
Using a Tether ........................................... 74
Childproof Door Locks ............................. 179
Cleaning the Exterior ............................... 592
Cleaning the Interior ................................ 590
Climate Control System ............................ 240
Changing the Mode ................................ 240
Defrosting the Windshield and Windows ............................................... 241
Dust and Pollen Filter............................... 589
Recirculation and Fresh Air Mode ............ 240
Sensors ................................................... 243
Synchronized Mode................................. 242
Using Automatic Climate Control ............ 240
Clock .......................................................... 166
CMBS
TM (Collision Mitigation Braking
SystemTM) ................................................. 458
Coat Hook ................................................. 229
Collision Mitigation Braking System
TM
(CMBSTM) ................................................. 458
Compact Spare Tire .................. 599, 635, 637
Console Compartment ............................. 226
Continuously Variable Transmission Creeping ................................................. 421
Fluid ........................................................ 563
Kickdown ................................................ 421
Operating the Shift Lever........... 24, 430, 432

651
Index
F
Features.................................................... 245
Filters Dust and Pollen....................................... 589
Oil .......................................................... 557
Flat Tire ..................................................... 599
Floor Mats ................................................ 591
Fluids
Automatic Transmission .......................... 563
Brake ...................................................... 564
Continuously Variable Transmission ........ 563
Engine Coolant ....................................... 561
Windshield Washer ................................. 565
FM/AM Radio ........................................... 278
Fog Lights ................................................. 197
Indicator ................................................... 97
Folding Down the Rear Seat ................... 216
Foot Brake ................................................ 514
Front Airbags (SRS) .................................... 49
Front Seat Heaters ................................... 237
Front Seat Heaters and Seat Ventilation .............................................. 238
Front Seats Adjusting ................................................ 212
Front Sensor Camera ............................... 506
Fuel ..................................................... 25, 533
Economy................................................. 536
Gauge .................................................... 139
Instant Fuel Economy .............................. 145
Low Fuel Indicator..................................... 93
Range ..................................................... 145 Recommendation .................................... 533
Refueling ................................................. 533
Fuel Economy and CO2 Emissions ............ 536
Fuel Fill Door ....................................... 25, 534
Unable to Unlock ..................................... 629
Fuses .......................................................... 622
Inspecting and Changing ......................... 627
Locations ................................. 622, 624, 626
G
Gasoline (Fuel) Economy ................................................. 536
Gauge ..................................................... 139
Information ............................................. 533
Instant Fuel Economy ............................... 145
Low Fuel Indicator ..................................... 93
Refueling ................................................. 533
Gauges ...................................................... 139
Glass (care) ........................................ 590, 593
Glove Box .................................................. 225
H
Halogen Bulbs ........................................... 566
Handling the Unexpected ........................ 597
HandsFreeLink ® (HFL) ............................... 375
Automatic Import of Cellular Phonebook and
Call History ............................................ 385
Automatic Transferring ............................ 384
Displaying Messages ................................ 395 Favorite Contacts .................................... 386
HFL Buttons............................................. 375
HFL Menus .............................................. 378
HFL Status Display ................................... 377
In Case of Emergency ...................... 305, 399
Limitations for Manual Operation ............ 377
Making a Call .......................................... 388
Options During a Call .............................. 391
Phone Setup............................................ 380
Receiving a Call ....................................... 391
Receiving a Text Message ........................ 393
Ring Tone................................................ 384
Selecting a Phone .................................... 394
To Set Up a Text Message Options .......... 392
Hazard Warning Button .............................. 6
HD Radio
TM............................................... 281
Head Restraints ........................................ 219
Headlights ................................................. 195
Aiming .................................................... 566
Auto High-Beam ..................................... 199
Automatic Operation............................... 196
Dimming ......................................... 195, 198
Operating................................................ 195
Head-Up Display ....................................... 159
Heated Steering Wheel ............................ 236
Heated Windshield Button ...................... 204
Heaters (Seat) ........................... 237, 238, 239
HFL (HandsFreeLink ®)............................... 375
High Beam Indicator .................................. 97
Hill Start Assist System ............................. 419
HomeLink ® Universal Transceiver ............ 372

654
Index
P
Paddle Shifters.................................. 427, 433
Panic Mode ............................................... 186
Parking ...................................................... 520
Parking Brake ............................................ 510
Parking Brake and Brake System Indicator (Amber) ............................................. 84, 618
Parking Brake and Brake System Indicator
(Red) .......................................... 83, 617, 618
Parking Sensor System .............................. 522
Passenger Front Airbag Off Indicator ....... 61
Passing Indicators ..................................... 195
Phone ........................................................ 150
Playing Bluetooth ® Audio ........................ 299
Power Windows ........................................ 187
Precautions While Driving ........................ 420
Rain ......................................................... 420
Pregnant Women ....................................... 44
Puncture (Tire) .......................................... 599
R
Radiator..................................................... 562
Radio (AM/FM) .......................................... 278
Radio (SiriusXM ®)...................................... 282
Radio Data System (RDS) .......................... 280
Range ........................................................ 145
RDS (Radio Data System) .......................... 280
Readiness Codes (Emissions Testing) ....... 641
Rear Defogger/Heated Door Mirror
Button ....................................................... 204 Rear Seat (Folding Down)
........................ 216
Rear Seat Heaters ..................................... 239
Rear Seat Reminder .................................. 217
Rearview Mirror ....................................... 210
Refueling .................................................. 533
Fuel Gauge.............................................. 139
Gasoline .................................. 533, 634, 636
Low Fuel Indicator ..................................... 93
Regulations ............................... 450, 580, 639
Remote Engine Start ................................ 416
Remote Transmitter ................................. 174
Replacement Battery .................................................... 588
Bulbs ....................................................... 566
Fuses ............................... 622, 624, 626, 627
Tires ........................................................ 583
Wiper Blade Rubber ................................ 574
Reporting Safety Defects ......................... 640
Resetting a Trip Meter ..................... 143, 145
Road Departure Mitigation (RDM) ......... 496
On and Off.............................................. 498S
Safe Driving ................................................ 33
Safety Check ............................................... 37
Safety Labels ............................................... 79
Safety Message ............................................. 2
Safety Support .......................................... 158 Seat Belts
.................................................... 38
Adjusting the Shoulder Anchor ................. 43
Automatic Seat Belt Tensioners ................. 41
Checking .................................................. 45
Fastening .................................................. 42
Installing a Child Seat wi th a Lap/Shoulder Seat
Belt ......................................................... 72
Pregnant Women...................................... 44
Reminder .................................................. 39
Warning Indicator ............................... 39, 92
Seat Heaters ............................. 237, 238, 239
Seat Ventilation ....................................... 238
Seats .......................................................... 212
Adjusting ................................................ 212
Front Seats.............................................. 212
Rear Seats ............................................... 216
Seat Heaters ........................... 237, 238, 239
Seat Ventilation ...................................... 238
Security System ........................................ 184
Immobilizer System Indicator ..................... 98
Security System Alarm Indicator ................ 99
Selecting a Child Seat ................................ 68
Sequential Mode ...................................... 427
Operation ............................................... 428
Shift Buttons ...................................... 21, 422
Operation ............................................... 423
Shift Lever .................................. 24, 429, 431
Operation ................................. 24, 430, 432
Releasing ................................................ 611
Won’t Move ........................................... 611
Shift Position Indicator .............................. 88

655
Index
Shifting (Transmission)............ 422, 429, 431
Shoulder Anchor ........................................ 43
Side Airbags ............................................... 57
Side Curtain Airbags .................................. 59
Siri Eyes Free ............................................. 313
SiriusXM ® Radio ....................................... 282
Smart Entry with Push Button Start System ..................................................... 170
Snow Tires ................................................ 585
Spare Tire ................................. 599, 635, 637
Spark Plugs ....................................... 634, 636
Specifications ........................................... 634
Specified Fuel ........................... 533, 634, 636
Speedometer ............................................ 139
SPORT Mode ............................................. 435
Indicator ................................................. 101
SRS Airbags (Airbags) ................................ 49
Starting Assist Brake Function ................ 441
Starting the Engine .................................. 414
Does Not Start ........................................ 605
Jump Starting ......................................... 608
Steering Wheel
Adjusting ................................................ 209
Stopping ................................................... 520
Summer Tires ............................................ 585
Sunglasses Holder .................................... 230
Supplemental Restraint System (SRS) ....... 49
Switches
(Around the Steering Wheel) ........ 6, 7, 191
System Message Indicator ......................... 99
System Updates ........................................ 266T
Tachometer....................................... 151, 162
Temperature Gauge ..................................................... 139
Outside Temperature ............................... 143
Temperature Sensor ......................... 143, 243
Time (Adjusting) ....................................... 166
Tire Pressure Monitoring System
(TPMS) ..................................................... 446
Indicator ............................................ 96, 620
Tires ........................................................... 577
Air Pressure ............................. 578, 635, 637
Checking and Maintaining ....................... 577
Inspection ................................................ 577
Labeling .................................................. 578
Puncture (Flat Tire) ................................... 599
Regulations ............................................. 580
Rotation .................................................. 584
Spare Tire ................................ 599, 635, 637
Summer .................................................. 585
Tire Chains .............................................. 585
Wear Indicators ....................................... 582
Winter ..................................................... 585
Tools .......................................................... 598
Towing a Trailer ....................................... 409
Equipment and Accessories ..................... 411
Load Limits .............................................. 409
Towing Your Vehicle ................................ 413
Emergency .............................................. 628 TPMS
(Tire Pressure Monitoring System)
.......... 446
Indicator............................................ 96, 620
Traffic Sign Recognition System .............. 500
Transmission ..................... 421, 422, 429, 431
Automatic ............................................... 422
Continuously Variable ..................... 429, 431
Fluid ........................................................ 563
Number................................................... 638
Shift Position Indicator............................... 88
Transmission System
Indicator.............................................. 89, 91
TRIP Button ............................................... 142
Trip Computer .................................. 144, 146
Trip Meter ................................. 143, 145, 147
Troubleshooting ....................................... 597
Blown Fuse.............................. 622, 624, 626
Brake Pedal Vibrates .................................. 30
Buzzer Sounds When Opening Door.......... 31
Emergency Towing .................................. 628
Engine Won’t Start .................................. 605
Noise When Braking .................................. 32
Overheating ............................................ 613
Puncture/Flat Tire .................................... 599
Rear Door Won’t Open...................... 31, 179
Shift Lever Won’t Move ........................... 611
Warning Indicators .................................... 82
Trunk ......................................................... 181
Lid........................................................... 181
Light Bulb........................................ 634, 636
Main Switch ............................................ 183