engine overheat HONDA ACCORD SEDAN 2021 Owner's Manual (in English)

Quick Reference Guide
29
Handling the Unexpected (P 597)
Flat Tire (P 599)
●Park in a safe location and replace the
flat tire with the compact spare tire in the
trunk.
Indicators Come On
(P 615)
●Identify the indicator and consult the
owner’s manual.
Engine Won’t Start
(P 605)
●If the battery is dead, jump start using a
booster battery.
Blown Fuse (P 622)
●Check for a blown fuse if an electrical
device does not operate.
Overheating (P 613)
●Park in a safe location. If you do not see
steam under the hood, open the hood,
and let the engine cool down.
Emergency Towing
(P 628)
●Call a professional towing service if you
need to tow your vehicle.

112
uuIndicators uDriver Information Interface Wa rning and Information Messages
Instrument Panel
MessageConditionExplanation
●Appears when the engine coolant temperature gets
abnormally high.
2 Overheating P. 613
●Appears if the automatic brake hold is automatically
canceled while it is in operation.●Immediately depress the brake pedal.
●Appears when the automa tic brake hold system is
turned off.
2 Automatic Brake Hold P. 515
●Appears when the automa tic brake hold button is
pressed without wearing the driver’s seat belt.●Fasten the driver’s seat belt.
2 Automatic Brake Hold P. 515

139
Instrument Panel
Gauges and Displays
Gauges
Gauges include the speedometer, fuel gauge, and other related indicators. They are
displayed when the power mode is in ON.
Displays your driving speed in mph (U.S.) or km/h (Canada).
Displays the amount of fuel left in the fuel tank.
Displays the temperature of the engine coolant.
■Speedometer
■Fuel Gauge
■Temperature Gauge
1Speedometer
You can show another speed unit on the driver
information interface and set the displayed
measurements to read in either mph and km/h.
2 Tachometer P. 151
1Fuel Gauge
NOTICE
You should refuel when the reading approaches .
Running out of fuel can cause the engine to misfire,
damaging the cata lytic converter.
The actual amount of remain ing fuel may differ from
the fuel gauge reading.E
1 Temperature Gauge
NOTICE
Driving with the temperat ure gauge pointer in the
upper zone can cause serious engine damage. Pull
safely to the side of th e road and allow engine
temperature to return to normal.
2 Overheating P. 613

231
uuInterior Convenience Items uOther Interior Convenience Items
Continued
Controls
Other Interior Convenience Items
The accessory power sockets can be used when the power mode is in ACCESSORY
or ON.
■Center pocket
Open the center pocket and the cover to use
it.
■Console compartment
Open the console lid and the cover to use it.
■Accessory Power Sockets1 Accessory Power Sockets
NOTICE
Do not insert an automotive type cigarette lighter
element. This can overheat the power socket.
The accessory power socket is designed to supply
power for 12-volt DC accessories that are rated
180 watts (15 amps) or less.
To prevent battery drain, use the power socket only
when the engine is running.
When the accessory power soc ket is not in use, close
the cover to prevent any small foreign objects from
getting into the accessory power socket.

597
Handling the Unexpected
This chapter explains how to handle unexpected troubles.
ToolsTypes of Tools .................................. 598
If a Tire Goes Flat
Changing a Flat Tire ......................... 599
Engine Does Not Start Checking the Engine ........................ 605
If the Remote Battery is Weak .......... 606
Emergency Engine Stop ................... 607
If the Battery Is Dead ....................... 608
Shift Lever Does Not Move .............. 611
Overheating How to Handle Overheating ............. 613 Indicator, Coming On/Blinking
If the Low Oil Pressure Warning Appears ... 615If the Charging System Indicator Comes
On ................................................. 615
If the Malfunction Indicator Lamp Comes On or Blinks ................................... 616
If the Brake System Indicator (Red) Comes
On or Blinks ................................... 617
If the Brake System Indicator (Red) Comes On
or Blinks at the Same Time When the Brake
System Indicator (Amber) Comes On.... 618
If the Electric Power Steering (EPS) System Indicator Comes On ....................... 619 If the Low Tire Pressure/TPMS Indicator
Comes On or Blinks ....................... 620
If the Transmission System Indicator Blinks along with the Warning Message... 621
Fuses Fuse Locations ................................. 622
Inspecting and Changing Fuses ........ 627
Emergency Towing ........................... 628
If You Cannot Unlock the Fuel Fill Door....629
If You Cannot Open the Trunk ........... 630
Refueling ........................................... 632

613Continued
Handling the Unexpected
Overheating
How to Handle Overheating
Overheating symptoms are as follows:
•The temperature gauge pointer is at th e mark or the engine suddenly loses
power.
• The Engine Temperature Too Hot. Do Not Drive. Allow Engine To Cool.
message appears on the dr iver information interface.
• Steam or spray comes out of the engine compartment.
■First thing to do
1. Immediately park the vehicle in a safe place.
2. Turn off all accessories and turn on the hazard warning lights.
u No steam or spray present: Keep the engine running and open the hood.
u Steam or spray is present: Turn off the engine and wait until it subsides.
Then open the hood.
1 How to Handle Overheating
NOTICE
Continuing to drive with the temperature gauge
pointer at the mark may damage the engine.
Continuing to drive with the Engine Temperature
Too Hot. Do Not Drive. Allow Engine To Cool.
message on the driver information interface may
damage the engine.
3WARNING
Steam and spray from an overheated
engine can seri ously scald you.
Do not open the hood if steam is coming
out.
H
H

uuOverheating uHow to Handle Overheating
614
Handling the Unexpected
■Next thing to do
1.Check that the cooling fan is operating and
stop the engine once the temperature
gauge pointer comes down.
u If the cooling fan is not operating,
immediately stop the engine.
2. Once the engine has cooled down, inspect
the coolant level an d check the cooling
system components for leaks.
u If the coolant level in the reserve tank is
low, add coolant until it reaches the
MAX mark.
u If there is no coolan t in the reserve tank,
check that the radiator is cool. Cover the
radiator cap with a heavy cloth and open
the cap. If necessary, add coolant up to
the base of the filler neck, and put the
cap back on.
■Last thing to do
Once the engine has cooled sufficiently, restart it and check the temperature gauge.
If the temperature gauge pointer has come do wn, resume driving. If it has not come
down, contact a dealer for repairs.
1 How to Handle Overheating
If the coolant is leaking, contact a dealer for repairs.
Use water as an emergency/temporary measure only.
Have a dealer flush the system with proper antifreeze
as soon as possible.
3WARNING
Removing the radiator cap while the
engine is hot can cause the coolant to spray
out, seriously scalding you.
Always let the engine and radiator cool
down before removing the radiator cap.
MAX
Reserve Tank
MIN

650
Index
Shift Lever Does Not Move....................... 611
Shifting............................................ 429, 431
Controls ..................................................... 165
Coolant (Engine) ....................................... 561
Adding to the Engine Coolant Reserve
Tank ...................................................... 561
Adding to the Radiator ............................ 562
Overheating............................................. 613
Creeping (Automatic Transmission/ Continuously Variable Transmission) ..... 421
Cross Traffic Monitor ................................ 527
Cup Holders ............................................... 227
Customer Service Information ................. 647
Customized Features ................................ 352
D
Daytime Running Lights ........................... 198
Dead Battery ............................................. 608
Defaulting All the Settings ...................... 371
Defrosting the Windshield and
Windows .................................................. 241
Devices that Emit Radio Waves ................ 639
Dimming
Headlights ............................................... 195
Rearview Mirror ....................................... 210
Dipstick (Engine Oil) ................................. 554
Directional Signals (Turn Signal) .............. 194
Door Mirrors ............................................. 211 Doors
......................................................... 167
Auto Door Locking .................................. 180
Auto Door Unlocking .............................. 180
Door and Trunk Open Message ................. 37
Keys ........................................................ 167
Locking/Unlocking the Doors from the Inside ...................................... 177
Locking/Unlocking the Doors
from the Outside ................................... 170
Lockout Prevention System ...................... 176
DOT Tire Quality Grading ........................ 580
Driver Attention Monitor ........................ 154
Driver Information Interface ................... 140
Switching the Display .............................. 140
Warning and Information Messages ........ 109
Driving ...................................................... 403
Automatic Transmission/Continuously Variable
Transmission.......................................... 421
Braking ................................................... 510
Shifting Position ...................... 422, 429, 431
Starting the Engine.................................. 414
Driving Position Memory System ............ 207
Driving Support Information ................... 157
Dust and Pollen Filter ............................... 589
E
Eco Assist® System ...................................... 12
ECON Button ............................................ 436
Econ Mode
Indicator.................................................. 100 Elapsed Time
............................................ 147
Electric Power Steering (EPS) System
Indicator ........................................... 95, 619
Electronic Stability Control (ESC) ............ 443
Emergency ................................................ 628
Emergency Engine Stop ........................... 607
Emergency Trunk Opener ....................... 183
Emissions Testing (Readiness Codes) ...... 641
Engine ....................................................... 638
Coolant .................................................. 561
Jump Starting ......................................... 608
Oil .......................................................... 553
Starting................................................... 414
Engine Coolant ........................................ 561
Adding to the Engine Coolant Reserve Tank ..................................................... 561
Adding to the Radiator ........................... 562
Overheating ............................................ 613
Temperature Gauge ................................ 139
Engine Oil ................................................. 553
Adding ................................................... 556
Checking ................................................ 554
Displaying Oil Life ................................... 544
Low Oil Pressure Warning ....................... 615
Recommended Engine Oil ....................... 553
ENGINE START/STOP Button .................... 191
EPS (Electric Power Steering) System ...... 619
Exhaust Gas Hazard
(Carbon Monoxide) .................................. 78
Exterior Care (Cleaning) .......................... 592
Exterior Mirrors ........................................ 211

653
Index
L
Lane Keeping Assist System (LKAS)........ 488
Language (HFL) ........................................ 377
LATCH (Child Seats) ................................... 69
Lights ................................................ 195, 566
Auto High-Beam ..................................... 199
Automatic............................................... 196
Bulb Replacement ................................... 566
Daytime Running Lights .......................... 198
Fog Lights ............................................... 197
High Beam Indicator ................................. 97
Interior.................................................... 223
Light Switches......................................... 195
Lights On Indicator.................................... 97
Turn Signals ............................................ 194
Load Limits ............................................... 407
Locking/Unlocking ................................... 167
Auto Door Locking/Unlocking ................. 180
Childproof Door Locks ............................ 179
From Inside ............................................. 177
From Outside .......................................... 170
Keys........................................................ 167
Using a Key............................................. 175
Lockout Prevention System ..................... 176
Low Battery Charge ................................. 615
Low Fuel Indicator ..................................... 93
Low Oil Pressure Warning ....................... 615
Low Remote Signal Strength .................. 169
Low Speed Braking Control .................... 467
Lower Anchors ........................................... 69
Lubricant Specifications Chart ........ 634, 636Luggage (Maximum Load Limit)
............. 407
Lumbar Support Adjustment Switch ....... 213
M
Maintenance..................................... 149, 539
Battery .................................................... 586
Brake Fluid .............................................. 564
Cleaning .................................................. 590
Climate Control System ........................... 589
Coolant ................................................... 561
Maintenance Minder
TM............................ 543
Oil ........................................................... 554
Precautions .............................................. 540
Radiator .................................................. 562
Remote Transmitter ................................. 588
Replacing Light Bulbs ............................... 566
Safety ...................................................... 541
Service Items ........................................... 547
Tires ........................................................ 577
Transmission Fluid ................................... 563
Under the Hood ...................................... 550
Malfunction Indicator Lamp .............. 87, 616
Map Lights ................................................ 224
Maximum Load Limit ............................... 407
Meters, Gauges ......................................... 139
Mirrors ....................................................... 210
Adjusting ................................................. 210
Door ........................................................ 211
Exterior .................................................... 211
Interior Rearview ..................................... 210 Modifications (and Accessories)
.............. 595
Moonroof ................................................. 190
MP3 ........................................................... 296
MP3/WMA/AAC ........................................ 296
Multi-View Rear Camera .......................... 531
N
Navigation........................................ 148, 163
Numbers (Identification) .......................... 638
O
Odometer................................................. 142
Oil (Engine) ............................................... 553
Adding .................................................... 556
Checking................................................. 554
Displaying Oil Life .................................... 544
Low Oil Pressure Warning........................ 615
Recommended Engine Oil ....................... 553
Viscosity .................................................. 553
Open Source Licenses ............................... 346
Opening
Trunk ...................................................... 630
Opening/Closing Hood....................................................... 552
Moonroof ............................................... 190
Power Windows ...................................... 187
Trunk ...................................................... 181
Outside Temperature ............................... 143
Overheating .............................................. 613

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